Right-Angle Mounting Adapters


  • Stably Mount Small or Large Optomechanics at 90°
  • Slotted, Counterbored, and Tapped Holes Enable
    Virtually Any Configuration

AP90L

Large Right-
Angle Plate

RM1F

1/4"-20 Tapped
Construction Cube

AB90CV

Vacuum-Compatible
Right-Angle Bracket with 1/4" (M6)
Counterbored Slot and 1/4"-20 Taps

AB90E

Right-Angle Bracket with 1/4" (M6)
Counterbored Slot and 8-32 Taps

TS240

Tombstone Mounting Block

Application Idea

VB01 Brackets Hold Large
Breadboards at 90º

AP90

Right-Angle Plate

Related Items


Please Wait

Thorlabs' Right-Angle Mounting Adapters assist in creating sturdy three-dimensional optomechanical assemblies and are suited for setups of virtually any size. They can be used directly with mounted optomechanics or as supports for larger structures. The parts shown below are either machined from a single block of aluminum or constructed from extruded lengths of aluminum for exceptional precision and rigidity. We also offer vacuum-compatible versions of our general-purpose Right-Angle Brackets for 1/4"-20 (M6) Cap Screws.

Thorlabs also manufactures an Adjustable Mounting Plate and Right-Angle Clear Aperture Brackets for other applications requiring vertical mounting, as well as 30°, 45°, and 60° angled mounting plates. For mounting two posts at a right angle we offer Ø1/2" Post Angle Mounting Clamps and Ø1" Post 90° Mounting Clamps.

TS240 SmartPack Packaging
Click to Enlarge

Updated TS240 Packaging
Smart Pack

Smart Pack Goals

  • Reduce Weight of Packaging
  • Increase Usage of Recyclable Materials
  • Improve Packing Integrity
  • Decrease Shipping Costs

Thorlabs' Smart Pack Initiative is aimed at minimizing waste while providing adequate protection for our products. By eliminating any unnecessary packaging, implementing design changes, and utilizing eco-friendly materials, this initiative seeks to reduce the environmental impact of our product packaging. 

The updated TS240 and TS240/M packaging consists of recycled cardboard and weighs 6.7% and 14.7% less, respectively, than the original packaging. This weight change results in a respective 0.86 kg and 1.85 kg reduction in travel-based CO2 emissions per year, based on typical product sales. The other products on this page have transitioned, or are in the process of transitioning to recycled paper packaging.

As we move through our product line, we will indicate re-engineered, eco-friendly packaging with our Smart Pack logo, which can be seen above.


Posted Comments:
jeff secor  (posted 2024-10-28 22:11:37.377)
make metric to imperial adapter plates for hole spacing conversion. like a right angle bracket with 25 / 50 mm slot spacing on one side, and 1 inch slot spacing on the other arm. I want to mount a metric breadboard vertical on an imperial table. Also should make bread boards with interleaved metric / imperial and color code the holes with paint thanks
cdolbashian  (posted 2024-10-30 04:19:59.0)
Thank you for reaching out to us with this feedback! For the smaller slotted right angle brackets, the slots are designed such that they could be used with imperial or metric spacing. For the larger brackets, as you mentioned, I think there is definitely some design space where a hybrid imperial-metric right angle bracket design could be advantageous. Regarding the imperial/metric breadboards, typically it is good practice to use all imperial, or all metric parts, to avoid stripping threaded holes and getting screws stuck or broken-off in threaded holes. I have reached out to you directly to discuss your suggestions.
Joseph Tokarski  (posted 2024-10-01 16:27:48.737)
I would like to get a copy of the Specification Sheet for the AB90B/M, if one exists, for my records and BOM. Thank you.
jdelia  (posted 2024-10-01 03:12:36.0)
Thank you for contacting Thorlabs. We unfortunately do not have a spec sheet for this item. All the specifications and support documentation such as CAD drawings can be found on the product family page: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=223&pn=AB90B/M
Jeff Secor  (posted 2024-01-04 09:51:03.81)
Need vertical supports 300-500 mm tall. Your products do not have good structure when mounted on vertical rails
jpolaris  (posted 2024-01-04 06:19:59.0)
Thank you for contacting Thorlabs. I have reached out to you directly to get clarification on the issue with structure of TS240 that you have found, as well as to work out a potential solution with you.
z lucky  (posted 2023-01-31 18:37:15.27)
Why don't you just give simple dimension on the product like height and width. without having to go to all the other precedures.
jdelia  (posted 2023-02-01 10:22:42.0)
Thank you for contacting Thorlabs. The length, width, and height of the AP90 bracket can be found readily available under the "Overview" section of our product family page.
David Moy  (posted 2021-06-23 11:17:22.987)
We would like a version of this bracket where the 3 holes in the bottom (shortest) leg of the bracket are replaced with a single slot.
YLohia  (posted 2021-06-28 11:18:44.0)
Hello, custom products can be requested by clicking on the "Request Quote" button above or by contacting your local Thorlabs Tech Support group. We will discuss the possibility of offering this directly.
Mark Vervest  (posted 2020-07-29 15:39:26.213)
There is an inconsistency. The title/label of this item says "M6 Tapped Holes" but the technical PDF drawing says "M6X1.0-6H THRU".
llamb  (posted 2020-07-31 02:42:51.0)
Thank you for your feedback on the AB90A/M. The holes are indeed tapped with an M6 x 1.0 thread, as opposed to smooth Ø6 mm holes, and they pass THRU the entire material's thickness, as opposed to being blind holes of a finite depth. We will consider clarifying these call-outs.
gergely.ercsey  (posted 2016-07-07 13:08:34.17)
Dear Madam/Sir! The holes should be in exact distance from the bottom. For example the first hole's axis distance from the bottom should be in 20mm. Best Regards, Gergely Ercsey
tcohen  (posted 2012-06-15 18:57:00.0)
Response from Tim at Thorlabs: Thank you for sharing this idea with us! We would like to send you some complementary pieces for your feedback. We will also update this page to indicate that they were customer inspired.
patrick.berry  (posted 2012-06-15 15:15:36.0)
I see you now have added the brackets I designed to the catalog! I will definitely be buying many of these!
tcohen  (posted 2012-04-26 18:00:00.0)
Update from Tim at Thorlabs to the customer who couldn’t consistently fit the washer onto the XE25A90: Your suggestion led to an updated design that solved this problem. Thank you for your feedback!
bdada  (posted 2012-03-13 11:49:00.0)
Response from Buki at Thorlabs to lujun0260: Thank you for your feedback. It sounds like you want pricing for our products but we already include that information on our website. I have contacted you to learn more about what you require.
lujun0260  (posted 2012-03-10 06:21:00.0)
please price list
tcohen  (posted 2012-02-28 09:22:00.0)
Response from Tim at Thorlabs: Thank you for your valuable feedback on the XE25A90. We do not have your email to contact you, but if you would like help or to further discuss the problem, please contact us at techsupport@thorlabs.com.
user  (posted 2012-02-25 11:51:39.0)
Can't consistantly fit washer on XE25A90 - XE25-Series Right Angle Bracket.
Thorlabs  (posted 2010-11-03 13:29:20.0)
Response from Javier at Thorlabs to Patrick. Thank you for your feedback. I will contact you directly to get details about your application. We can discuss the possibility of custom making this part and/or potentially adding it to our catalog.
patrick.berry  (posted 2010-11-03 09:27:57.0)
It would be nice if you had some 90 degree brackets available which were the size of the AB90 but had 1/4-20 threaded holes on one or both sides. It would also be nice to have one that was half as wide, possibly with one counterbored 1/4-20 and one threaded on each side.
klee  (posted 2009-09-14 17:15:44.0)
A response from Ken at Thorlabs to sabba_yoni: We do not have any angle bracket that is smaller than the AB90. However, we can custom make one if you can send us a sketch or drawing.
sabba_yoni  (posted 2009-09-14 15:46:52.0)
i need a small "angle bracket" , like 1.5*1 inch did you have something like that?
Back to Top

Right-Angle Brackets for 1/4"-20 (M6) Cap Screws

Product Image
(Click to Enlarge)
AB90 AB90H AB90A(/M) AB90B(/M) AB90C(/M)
Item # AB90 AB90H AB90A(/M) AB90B(/M) AB90C(/M)
Counterbored Mounting Slots Two 1/4" (M6) Slots N/A One 1/4" (M6) Slot
Counterbored Mounting Holes N/A Two 1/4" (M6) Holes N/A
Tapped Holes None Six 1/4"-20 (M6)
Holes per Side
Two 1/4"-20 (M6)
Holes per Side
Three 1/4"-20 (M6)
Holes on One Side
Dimensions (L x W x H)
[Click for Mechanical Drawing]
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 0.75" x 1.58"
(50.8 x 19.1 x 40.0 mm)
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 x 19.1 x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 x 19.1 x 50.8 mm)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AB90A Support Documentation
AB90ACustomer Inspired! Right-Angle Bracket with Counterbored Slots & 1/4"-20 Tapped Holes
$30.58
Today
AB90B Support Documentation
AB90BCustomer Inspired! Slim Right-Angle Bracket with Counterbored & 1/4"-20 Tapped Holes
$30.58
Today
AB90C Support Documentation
AB90CCustomer Inspired! Slim Right-Angle Bracket with Counterbored Slot & 1/4"-20 Tapped Holes
$30.58
Today
+1 Qty Docs Part Number - Universal Price Available
AB90 Support Documentation
AB90Right-Angle Bracket with Counterbored Slots
$30.58
Today
AB90H Support Documentation
AB90HCustomer Inspired! Slim Right-Angle Bracket with Counterbored Slots
$30.58
Today
+1 Qty Docs Part Number - Metric Price Available
AB90A/M Support Documentation
AB90A/MCustomer Inspired! Right-Angle Bracket with Counterbored Slots and M6 Tapped Holes
$30.58
Today
AB90B/M Support Documentation
AB90B/MCustomer Inspired! Slim Right-Angle Bracket with Counterbored & M6 Tapped Holes
$30.58
Today
AB90C/M Support Documentation
AB90C/MCustomer Inspired! Slim Right-Angle Bracket with Counterbored Slot & M6 Tapped Holes
$30.58
Today
Back to Top

Vacuum-Compatible Right-Angle Brackets for 1/4"-20 (M6) Cap Screws

These vacuum-compatible versions of the AB90, AB90H, AB90A(/M), and AB90C(/M) brackets above are chemically cleaned and prepared for vacuum applications before packaging. They are compatible directly out of the packaging with vacuum environments down to 10-6 Torr. With additional cleaning and processing, they can be used at even lower pressures, only limited by the outgassing rate of the aluminum. The material properties of the aluminum and the cleaning methods completed by the end user should be used to determine the appropriateness of these products and materials in a specific vacuum system.

Thorlabs also offers a variety of other vacuum-compatible optomechanical components and breadboards that can be combined to build experimental setups for use within a vacuum chamber.

Product Image
(Click to Enlarge)
AB90V AB90V AB90V AB90CV(/M)
Item # AB90V AB90HV AB90AV(/M) AB90CV(/M)
Counterbored Mounting Slots Two 1/4" (M6) Slots One 1/4" (M6) Slot
Counterbored Mounting Holes N/A
Tapped Holes None Six 1/4"-20 (M6)
Holes per Side
Three 1/4"-20 (M6)
Holes on One Side
Dimensions (L x W x H)
[Click for Mechanical Drawing]
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 0.75" x 1.58"
(50.8 x 19.1 x 40.0 mm)
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 x 19.1 x 50.8 mm)
Vacuum Compatibility >10-6 Torra
Material 6061-T6 Aluminum
Packaging Double Vacuum Bagged
  • This is the pressure at which these components can be used directly out of the packaging with no additional processing. They can be used at even lower pressures with additional cleaning and processing.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AB90AV Support Documentation
AB90AVCustomer Inspired! Vacuum-Compatible Right-Angle Bracket with Counterbored Slots & 1/4"-20 Tapped Holes
$49.98
Today
AB90CV Support Documentation
AB90CVCustomer Inspired! Vacuum-Compatible Slim Right-Angle Bracket with Counterbored Slot & 1/4"-20 Tapped Holes
$49.98
Today
+1 Qty Docs Part Number - Universal Price Available
AB90V Support Documentation
AB90VCustomer Inspired! Vacuum-Compatible Right-Angle Bracket with Counterbored Slots
$49.98
Today
AB90HV Support Documentation
AB90HVCustomer Inspired! Vacuum-Compatible Slim Right-Angle Bracket with Counterbored Slots
$49.98
Today
+1 Qty Docs Part Number - Metric Price Available
AB90AV/M Support Documentation
AB90AV/MCustomer Inspired! Vacuum-Compatible Right-Angle Bracket with Counterbored Slots and M6 Tapped Holes
$49.98
Today
AB90CV/M Support Documentation
AB90CV/MCustomer Inspired! Vacuum-Compatible Slim Right-Angle Bracket with Counterbored Slot & M6 Tapped Holes
$49.98
Today
Back to Top

Right-Angle Brackets for 8-32 (M4) and 1/4"-20 (M6) Cap Screws

Product Image
(Click to Enlarge)
AB90D AB90E(/M) AB90F(/M) AB90G
Item # AB90D AB90E(/M) AB90F(/M) AB90G
Counterbored Mounting Slots One #8 (M4) Slot
One 1/4" (M6) Slot
One 1/4" (M6) Slot N/A One #8 (M4) Slot
One 1/4" (M6) Slot
Counterbored Mounting Holes Six #8 (M4) Holes
Six 1/4" (M6) Holes
Five #8 (M4) Holes
Six 1/4" (M6) Holes
One #8 (M4) Hole
One 1/4" (M6) Hole
N/A
Tapped Holes N/A Four 8-32 (M4) Holes Two 8-32 (M4) Holes
Two 1/4"-20 (M6) Holes
N/A
Dimensions (L x W x H)
[Click for Mechanical Drawing]
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 1.50" x 2.00"
(50.8 x 38.1 x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 x 19.1 x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 x 19.1 x 50.8 mm)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AB90E Support Documentation
AB90ERight-Angle Bracket, 1/4" (M6) Counterbored Slot, 8-32 Taps
$36.98
3 Weeks
AB90F Support Documentation
AB90FSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes, 8-32 and 1/4"-20 Taps
$30.58
Today
+1 Qty Docs Part Number - Universal Price Available
AB90D Support Documentation
AB90DRight-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes and Slots
$36.98
Today
AB90G Support Documentation
AB90GSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Slots
$30.58
Today
+1 Qty Docs Part Number - Metric Price Available
AB90E/M Support Documentation
AB90E/MRight-Angle Bracket, 1/4" (M6) Counterbored Slot, M4 Taps
$36.98
Today
AB90F/M Support Documentation
AB90F/MSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes, M4 and M6 Taps
$30.58
Today
Back to Top

Right-Angle Plates

MSAP90 ApplicationClick to Enlarge
AP90L with MB636 Breadboard
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Angled Rear Support Structure Reinforces Mounted Optomechanics
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)
  • Physical Dimensions:
    • AP90(/M): 2.88" x 2.50" x 3.00" (73.2 mm x 63.5 mm x 76.2 mm)
    • AP90L(/M): 8.80" x 2.50" x 3.00" (223.5 mm x 63.5 mm x 76.2 mm)

The AP90(/M) Right-Angle Plate is an ideal solution for building sturdy three-dimensional optomechanical assemblies that require vertical positioning. This plate provides four 1/4"-20 (M6) clearance slots, seven 1/4"-20 (M6) tapped holes, and two 1/4"-20 (M6) counterbores oriented at 90° from the optical table surface. Its base contains two 1.30" (34 mm) long, 1/4"-20 (M6) clearance slots and two 1/4"-20 (M6) counterbores for mounting to an optical table.

Our AP90L(/M) Large Right-Angle Plate is a heavy-duty mount, capable of holding breadboards at 90° relative to an optical table's surface. This plate provides a generous array of 31 1/4"-20 (M6) tapped holes and six 1/4"-20 (M6) counterbores oriented at 90° from the optical table surface. Its base contains three 1/4"-20 (M6) clearance slots and six 1/4"-20 (M6) counterbored holes for mounting to an optical table.

For an alternative 90° mounting option, the top plate on our AP180 Adjustable Angle Plate can be positioned to provide mounting configurations similar to the AP90. Thorlabs also offers 45° and 30°/60° mounting plates.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AP90 Support Documentation
AP90Right-Angle Mounting Plate, 1/4"-20 Compatible
$94.74
Today
AP90L Support Documentation
AP90LLarge Right-Angle Mounting Plate, 1/4"-20 Compatible
$185.91
Today
+1 Qty Docs Part Number - Metric Price Available
AP90/M Support Documentation
AP90/MRight-Angle Mounting Plate, M6 x 1.0 Compatible
$94.74
Today
AP90L/M Support Documentation
AP90L/MLarge Right-Angle Mounting Plate, M6 x 1.0 Compatible
$185.91
Today
Back to Top

Mini-Series Right-Angle Plate

MSAP90 Mechanical Drawing
Click for Details

MSAP90 Mechanical Drawing
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Angled Rear Support Structure Reinforces Mounted Optomechanics
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)

Our MSAP90(/M) Mini-Series Right-Angle Plate, based upon our popular AP90 Right-Angle Plate design, is an ideal solution for constructing rigid three-dimensional assemblies with our Mini-Series components. This bracket provides four 4-40 (M3) clearance slots, seven 4-40 (M3) tapped holes, and two 4-40 (M3) counterbores oriented at 90° from an optical table surface. Its base contains two 1.0" (25.4 mm) long, 4-40 (M3) clearance slots and two 4-40 (M3) counterbores for mounting to a Mini-Series Breadboard.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
MSAP90 Support Documentation
MSAP90Mini-Series Right-Angle Bracket, 4-40 Holes
$52.18
Today
+1 Qty Docs Part Number - Metric Price Available
MSAP90/M Support Documentation
MSAP90/MMini-Series Right-Angle Bracket, M3 Holes
$52.18
3 Weeks
Back to Top

Right-Angle Brackets for 25, 50, & 75 mm Rails

XE50A90 as Breadboard Mount
Click to Enlarge

50 mm Rail Bolted to Optical Table
XE25A90 Reinforced Corner
Click to Enlarge

Reinforced 25 mm Rail Corner
XE25A90 as Breadboard Mount
Click to Enlarge

25 mm Rail Enclosure Bolted to Optical Table
  • Brace Rail Corners or Mount Rails Vertically
  • One-Piece Aluminum Construction for Excellent Rigidity
  • For Use With 1/4"-20 (M6) Cap Screws
  • Versions for 25 mm, 50 mm, and 75 mm Rails

These right-angle brackets can be used to fasten optical construction rails to each other or to an optical table. Each bracket can be secured to an optical rail by screwing it to T-nuts (not included) inserted into the rail channels. Either the XE50A90 or the XE75A90 bracket may be used with our 50 mm x 75 mm rails, depending on which side of the rail(s) the bracket is attached to.

The XE25A90 bracket is ideal for fastening our optical enclosures to an optical table or breadboard.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
XE25A90 Support Documentation
XE25A90Right-Angle Bracket for 25 mm Rails
$32.08
Today
XE50A90 Support Documentation
XE50A90Right-Angle Bracket for 50 mm Rails
$75.76
Today
XE75A90 Support Documentation
XE75A90Right-Angle Bracket for 75 mm Rails
$90.02
Today
Back to Top

Counterbored Construction Cubes

RM1G Corner
Click to Enlarge

View Imperial Product List
Item #QtyDescription
RS63Ø1" Pillar Post, 1/4"-20 Taps, L = 6"
RM1G11" Construction Cube, Three 1/4" (M6) Counterbored Holes
SH25LP3811/4"-20 Low-Profile Channel Screw, 3/8" Long, 100 Pack
View Metric Product List
Item #QtyDescription
RS150/M3Ø25.0 mm Pillar Post, M6 Taps, L = 150 mm
RM1G11" Construction Cube, Three 1/4" (M6) Counterbored Holes
SH6M10LP1M6 x 1.0 Low-Profile Channel Screw, 10 mm Long, 100 Pack
RM1G Linking Three Ø1" Pillar Posts
RM1S Corner
Click to Enlarge

View Imperial Product List
Item #QtyDescription
XE25L12225 mm Square Construction Rail, 12" Long, 1/4"-20 Taps
RM1G11" Construction Cube, Three 1/4" (M6) Counterbored Holes
SH25LP3811/4"-20 Low-Profile Channel Screw, 3/8" Long, 100 Pack
TB41Black Hardboard, 24" x 24" (610 mm x 610 mm), 3/16" (4.76 mm) Thick, 3 Sheets
View Metric Product List
Item #QtyDescription
XE25L300/M225 mm Square Construction Rail, 300 mm Long, M6 Taps
RM1G11" Construction Cube, Three 1/4" (M6) Counterbored Holes
SH6M10LP1M6 x 1.0 Low-Profile Channel Screw, 10 mm Long, 100 Pack
TB41Black Hardboard, 24" x 24" (610 mm x 610 mm), 3/16" (4.76 mm) Thick, 3 Sheets
RM1S Slotted Cube Securing a Hardboard Enclosure Wall
Low-Profile Channel Screws

Click to Enlarge

Low-Profile Channel Screws in RM1G
  • RM1G: Counterbored on Three Sides
  • RM1S: Counterbored on Three Sides and Slotted to Accommodate Enclosure Walls
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)

These Construction Cubes contain three 1/4" (M6) counterbores on adjacent faces. They can be connected to up to three optomechanical components by tightening our Low-Profile Channel Screws (sold below) through the counterbores, as shown in the images to the right. In addition, the RM1S cube has slotted corners to accept posterboard and hardboard walls for the construction of light-tight optical enclosures. Since both these cubes are machined from a single block of aluminum, they are ideal for constructions that need to be as sturdy as possible. 

If compatibility with more than three optomechanical components is needed, or if components are to be placed on opposing faces, please consider the RM1F Construction Cube below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
RM1G Support Documentation
RM1G1" Construction Cube, Three 1/4" (M6) Counterbored Holes
$20.43
Today
RM1S Support Documentation
RM1S1" Construction Cube with Slotted Corners, Three 1/4" (M6) Counterbored Holes
$23.04
Today
Back to Top

Tapped Construction Cubes

RM1F Junction
Click to Enlarge
View Imperial Product List
Item #QtyDescription
RM1F11" Construction Cube with 1/4"-20 Tapped Holes
RS31Ø1" Pillar Post, 1/4"-20 Taps, L = 3"
RS41Ø1" Pillar Post, 1/4"-20 Taps, L = 4"
KM100B11.92" x 1.92" Kinematic Platform Mount
PM31Small Adjustable Clamping Arm, 6-32 Threaded Post
RM1C1Ø1" Slip-On Post Clamp, 8-32 Tap, 8-32 Threaded Stud
View Metric Product List
Item #QtyDescription
RM1F/M125 mm Construction Cube with M6 x 1.0 Tapped Holes
RS75/M1Ø25.0 mm Pillar Post, M6 Taps, L = 75 mm
RS100/M1Ø25.0 mm Pillar Post, M6 Taps, L = 100 mm
KM100B/M148.6 mm x 48.6 mm Kinematic Platform Mount
PM3/M1Small Adjustable Clamping Arm, M4 x 0.7 Threaded Post
RM1C/M1Ø25.0 mm Slip-On Post Clamp, M4 Tap, M4 Threaded Stud
RM1F Being Used to Mount Two Ø1" Pillar Posts at a Right Angle for an Optomechanical Assembly
Item # Size Taps
MSCB3 1/2" 8-32
RM1FA 1" 8-32
RM1F 1" 1/4"-20
MSCB3/M 12.7 mm M4 x 0.7
RM1FA/M 25.0 mm M4 x 0.7
RM1F/M 25.0 mm M6 x 1.0
  • Attach up to Six Optomechanics at Right Angles
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)

These construction cubes have one centered tapped hole on each of their sides. Machined from a single block of aluminum, they are ideal for constructions that need a high degree of sturdiness. By using setscrews, up to six optomechanics can be attached to each cube.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
MSCB3 Support Documentation
MSCB31/2" Construction Cube with 8-32 Tapped Holes
$14.84
Today
RM1FA Support Documentation
RM1FA1" Construction Cube with 8-32 Tapped Holes
$23.64
Today
RM1F Support Documentation
RM1F1" Construction Cube with 1/4"-20 Tapped Holes
$23.64
Today
+1 Qty Docs Part Number - Metric Price Available
MSCB3/M Support Documentation
MSCB3/M12.7 mm Construction Cube with M4 x 0.7 Tapped Holes
$14.84
Today
RM1FA/M Support Documentation
RM1FA/M25 mm Construction Cube with M4 x 0.7 Tapped Holes
$23.64
Today
RM1F/M Support Documentation
RM1F/M25 mm Construction Cube with M6 x 1.0 Tapped Holes
$23.64
Today
Back to Top

Vertical Brackets

VB01 Application
Click to Enlarge

VB01 Holding an MB1224 Breadboard
  • Mount Large Breadboards at a 90° Angle
  • One-Piece Construction for Excellent Rigidity
  • Parallel and Perpendicular Within 0.003" (0.07 mm)
  • 6", 11.75", or 18" Brackets Available
  • Each Bracket Sold Individually

These Vertical Brackets are designed to mount any of our aluminum breadboards vertically on an optical table. The edges contain 1/4" (M6) clearance holes and 1/4"-20 (M6) tapped holes at regular spacings, providing a high degree of mounting flexibility. The VB01A(/M) has three 1/4"-20 (M6) tapped holes along the 45° edge for additional mounting options. 6", 11.75", and 18" tall brackets are available.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
VB01A Support Documentation
VB01A6" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$84.94
Today
VB01 Support Documentation
VB0111.75" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$108.69
Today
VB01B Support Documentation
VB01B18" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$150.50
Today
+1 Qty Docs Part Number - Metric Price Available
VB01A/M Support Documentation
VB01A/M6" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$84.94
Today
VB01/M Support Documentation
VB01/M11.75" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$108.69
Today
VB01B/M Support Documentation
VB01B/M18" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$150.50
Today
Back to Top

Large Right-Angle Bracket

AP90RL Holding Breadboard
Click to Enlarge

Two AP90RL Brackets Connected by an Arched Slot
MSAP90 ApplicationClick to Enlarge
AP90RL Holding MB12 Breadboard Vertically
  • Large Mounting Surface with Tapped Holes on Front, Sides, and Top
  • Two Arched Slots for Rotating Base by up to ±50°
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)
  • Physical Dimensions: 5.00" x 3.40" x 7.00" (127.0 mm x 86.4 mm x 177.8 mm)

The AP90RL(/M) Large Angle Bracket is a heavy-duty component ideal for mounting breadboards and other bulky optomechanics at right angles to an optical table. The front, sides, and top contain a generous array of 1/4"-20 (M6) tapped holes and clearance holes, and the front additionally provides two parallel 2.40" (61 mm) long clearance slots. The base contains two 1/4"-20 (M6) clearance slots and five clearance holes, as well as two arched 1/4"-20 (M6) slots that provide continuous rotation of ±50° prior to fastening the bracket down.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AP90RL Support Documentation
AP90RLLarge Right-Angle Bracket, 1/4"-20 Holes
$194.83
Today
+1 Qty Docs Part Number - Metric Price Available
AP90RL/M Support Documentation
AP90RL/MLarge Right-Angle Bracket, M6 Holes
$194.83
Today
Back to Top

Tombstone Mounting Block

MSAP90 ApplicationClick to Enlarge
Two Kinematic Mirror Mounts on a Tombstone Block
  • Suitable for Fixing a Large Number of Optomechanics
  • Equipped with 1/4"-20 (M6) and 8-32 (M4) Tapped Holes at Regular Spacings
  • Mounted on Included, Removable BA2(/M) Base
  • Total of 160 Tapped Holes
  • Mounting Block Dimensions
    • TS240: 2.00" x 1.47" x 4.00" (L x W x H)
    • TS240/M: 50.0 mm x 37.3 mm x 100.0 mm (L x W x H)

By offering a total of 160 1/4"-20 (M6) and 8-32 (M4) tapped holes, the TS240(/M) Tombstone Mounting Block provides unparalleled vertical mounting capability. All five exposed surfaces provide a generous array of tapped holes for compatibility with virtually all standard optomechanics.

The photo to the right shows the TS240 with two KM100 Kinematic Mounts, two ME1-P01 Protected Silver Mirrors, and two BA2 Bases. One BA2(/M) base is included with the tombstone mounting block; mounts and mirrors are sold separately.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
TS240 Support Documentation
TS240Tombstone Mounting Block with 1/4"-20 & 8-32 Tapped Holes and BA2 Base
$206.69
Today
+1 Qty Docs Part Number - Metric Price Available
TS240/M Support Documentation
TS240/MTombstone Mounting Block with M4 & M6 Tapped Holes and BA2/M Base
$206.69
Today
Back to Top

Low-Profile Channel Screws

Item # Threading Thread Length Hex Head Height Quantity Material
SH25LP38 1/4"-20 0.38" (9.7 mm) 1/8" 0.13" (3.2 mm) 100 Steel,
Black
Oxide
Finish
SH25LP63 0.63" (15.9 mm) 50
SH6M8LP M6 x 1.0 8 mm (0.31") 4 mm 4 mm (0.16") 50
SH6M10LP 10 mm (0.39") 100
SH6M16LP 16 mm (0.63") 50
Low-Profile Channel Screw
Click to Enlarge

Low-Profile Screw in RM1G Construction Cube
Standard Cap Screw
Click to Enlarge

Standard Cap Screw in RM1G Construction Cube

Our Low-Profile Channel Screws have a reduced cap head height relative to standard screws, permitting them to be used in tight spaces. In particular, they are recommended when neighboring screws are at a right angle and in close proximity, as in our XE25W3 Corner Cube or RM1G and RM1S Construction Cubes.

Shown to the right are a standard cap screw and a low-profile channel screw installed in an RM1G cube. The low-profile screw's shortened cap height prevents neighboring screws from interfering with each other.

The head of each screw also fits into XE rail channels for alternate construction methods, as outlined here.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
SH25LP38 Support Documentation
SH25LP381/4"-20 Low-Profile Channel Screw, 3/8" Long, 100 Pack
$27.56
Today
SH25LP63 Support Documentation
SH25LP631/4"-20 Low-Profile Channel Screw, 5/8" Long, 50 Pack
$22.02
Today
+1 Qty Docs Part Number - Metric Price Available
SH6M8LP Support Documentation
SH6M8LPM6 x 1.0 Low-Profile Channel Screw, 8 mm Long, 50 Pack
$18.41
Today
SH6M10LP Support Documentation
SH6M10LPM6 x 1.0 Low-Profile Channel Screw, 10 mm Long, 100 Pack
$27.56
Today
SH6M16LP Support Documentation
SH6M16LPM6 x 1.0 Low-Profile Channel Screw, 16 mm Long, 50 Pack
$22.02
Today