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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

AP90

Right-Angle Plate

AB90C

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

Related Items


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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. All the parts shown here are machined from a single block of aluminum, providing exceptional precision and rigidity.

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. In addition, we also offer Ø1/2" Post Angle Mounting Clamps and Ø1" Post 90° Mounting Clamps for mounting two posts at a right angle.

TS240 SmartPack Packaging
Click to Enlarge

TS240 Packaging

Smart Pack

Item #% Weight
Reduction
CO2-Equivalent
Reductiona
TS240 6.86% 0.86 kg
TS240/M 14.74% 1.85 kg

Smart Pack

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

Thorlabs' Smart Pack Initiative is aimed at waste minimization while still maintaining adequate protection for our products. By eliminating any unnecessary packaging, implementing packaging design changes, and utilizing eco-friendly packaging materials for our customers when possible, this initiative seeks to improve the environmental impact of our product packaging. Products listed above are now shipped in re-engineered packaging that minimizes the weight and the use of non-recyclable materials.b As we move through our product line, we will indicate re-engineered packages with our Smart Pack logo.

  • Travel-based emissions reduction calculations are estimated based on the total weight reduction of packaging materials used for all of 2013’s product sales, traveling 1,000 miles on an airplane, to provide general understanding of the impact of packaging material reduction. Calculations were made using the EPA’s shipping emissions values for different modes of transport.
  • Some Smart Pack products may show a negative weight reduction percentage as the substitution of greener packaging materials, such as the Greenwrap, at times slightly increases the weight of the product packaging.

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Posted Comments:
Poster:gergely.ercsey
Posted Date: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
Poster:tcohen
Posted Date: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.
Poster:patrick.berry
Posted Date: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!
Poster:tcohen
Posted Date: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!
Poster:bdada
Posted Date: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.
Poster:lujun0260
Posted Date:2012-03-10 06:21:00.0
please price list
Poster:tcohen
Posted Date: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.
Poster:
Posted Date:2012-02-25 11:51:39.0
Can't consistantly fit washer on XE25A90 - XE25-Series Right Angle Bracket.
Poster:Thorlabs
Posted Date: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.
Poster:patrick.berry
Posted Date: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.
Poster:klee
Posted Date: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.
Poster:sabba_yoni
Posted Date:2009-09-14 15:46:52.0
i need a small "angle bracket" , like 1.5*1 inch did you have something like that?

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

Product Image
(Click to Enlarge)
AB90AB90A(/M)AB90B(/M)AB90C(/M)
Item #AB90AB90A(/M)AB90B(/M)AB90C(/M)
Counterbored Mounting SlotsTwo 1/4" (M6) SlotsTwo 1/4" (M6) SlotsN/AOne 1/4" (M6) Slot
Counterbored Mounting HolesN/AN/ATwo 1/4" (M6) HolesN/A
Tapped HolesNoneSix 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 mm x 38.1 mm x 50.8 mm)
2.00" x 1.50" x 2.00"
(50.8 mm x 38.1 mm x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 mm x 19.1 mm x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 mm x 19.1 mm 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 / Ships
AB90A Support Documentation
AB90ACustomer Inspired!Right-Angle Bracket with Counterbored Slots & 1/4"-20 Tapped Holes
$26.25
Today
AB90B Support Documentation
AB90BCustomer Inspired!Slim Right-Angle Bracket with Counterbored & 1/4"-20 Tapped Holes
$26.25
Today
AB90C Support Documentation
AB90CCustomer Inspired!Slim Right-Angle Bracket with Counterbored Slot & 1/4"-20 Tapped Holes
$26.25
Today
+1 Qty Docs Part Number - Universal Price Available / Ships
AB90 Support Documentation
AB90Right-Angle Bracket with Counterbored Slots
$26.25
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
AB90A/M Support Documentation
AB90A/MCustomer Inspired!Right-Angle Bracket with Counterbored Slots and M6 Tapped Holes
$26.25
Today
AB90B/M Support Documentation
AB90B/MCustomer Inspired!Slim Right-Angle Bracket with Counterbored & M6 Tapped Holes
$26.25
Today
AB90C/M Support Documentation
AB90C/MCustomer Inspired!Slim Right-Angle Bracket with Counterbored Slot & M6 Tapped Holes
$26.25
Today

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

Product Image
(Click to Enlarge)
AB90DAB90E(/M)AB90F(/M)AB90G
Item #AB90DAB90E(/M)AB90F(/M)AB90G
Counterbored Mounting Slots One #8 (M4) Slot
One 1/4" (M6) Slot
One 1/4" (M6) SlotN/AOne #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 HolesN/AFour 8-32 (M4) HolesTwo 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 mm x 38.1 mm x 50.8 mm)
2.00" x 1.50" x 2.00"
(50.8 mm x 38.1 mm x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 mm x 19.1 mm x 50.8 mm)
2.00" x 0.75" x 2.00"
(50.8 mm x 19.1 mm 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 / Ships
AB90E Support Documentation
AB90ERight-Angle Bracket, 1/4" (M6) Counterbored Slot, 8-32 Taps
$31.75
Today
AB90F Support Documentation
AB90FSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes, 8-32 and 1/4"-20 Taps
$26.25
Today
+1 Qty Docs Part Number - Universal Price Available / Ships
AB90D Support Documentation
AB90DRight-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes and Slots
$31.75
Today
AB90G Support Documentation
AB90GSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Slots
$26.25
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
AB90E/M Support Documentation
AB90E/MRight-Angle Bracket, 1/4" (M6) Counterbored Slot, M4 Taps
$31.75
Today
AB90F/M Support Documentation
AB90F/MSlim Right-Angle Bracket, #8 (M4) and 1/4" (M6) Counterbored Holes, M4 and M6 Taps
$26.25
Today

Right-Angle Plates

MSAP90 Application
Click 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 / Ships
AP90 Support Documentation
AP90Right-Angle Mounting Plate, 1/4"-20 Compatible
$79.75
Today
AP90L Support Documentation
AP90LLarge Right-Angle Mounting Plate, 1/4"-20 Compatible
$121.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
AP90/M Support Documentation
AP90/MRight-Angle Mounting Plate, M6 x 1.0 Compatible
$79.75
Today
AP90L/M Support Documentation
AP90L/MLarge Right-Angle Mounting Plate, M6 x 1.0 Compatible
$121.00
Today

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 0.02" (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 / Ships
MSAP90 Support Documentation
MSAP90Mini-Series Right-Angle Bracket, 4-40 Holes
$43.50
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
MSAP90/M Support Documentation
MSAP90/MMini-Series Right-Angle Bracket, M3 Holes
$43.50
Today

Right-Angle Bracket for 25 mm Rails

XE25A90 Reinforced Corner
Click to Enlarge

Reinforced Corner
XE25A90 as Breadboard Mount
Click to Enlarge

Enclosure Bolted to Optical Table
  • Brace 25 mm Rail Corners or Mount Rails Vertically
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)

The XE25A90 Right-Angle Bracket fastens to 25 mm rails by using a 1/4"-20 (M6) cap screw and a T-Nut (not included) with the through hole located on the bottom or the side.

These mounts are 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 / Ships
XE25A90 Support Documentation
XE25A90Right-Angle Bracket for 25 mm Rails
$27.00
Today

Counterbored Construction Cubes

RM1G Corner
Click to Enlarge

RM1G Linking Three Ø1" Pillar Posts
RM1S Corner
Click to Enlarge

RM1S Slotted Cube Securing a Hardboard Enclosure Wall
  • Hold up to Three Optomechanical Components at Right Angles
    • 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 / Ships
RM1G Support Documentation
RM1G1" Construction Cube, Three 1/4" (M6) Counterbored Holes
$17.20
Today
RM1S Support Documentation
RM1S1" Construction Cube with Slotted Corners, Three 1/4" (M6) Counterbored Holes
$19.40
Today

Tapped Construction Cube

RM1F Junction
Click to Enlarge

RM1F Linking Four Ø1" Pillar Posts
RM1F Junction
Click to Enlarge

RM1F Being Used to Mount Two Ø1" Pillar Posts at a Right Angle for an Optomechanical Assembly
  • Holds up to Six Optomechanics at Right Angles
  • One-Piece Aluminum Construction for Excellent Rigidity
  • Parallel and Perpendicular to Within 0.002" (0.05 mm)

The RM1F(/M) Construction Cube contains a centered 1/4"-20 (M6) tapped hole on all six sides. Since it is machined from a single block of aluminum, it is ideal for constructions that need the highest available degree of sturdiness. It can be connected to up to six optomechanics by using setscrews.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
RM1F Support Documentation
RM1F1" Construction Cube with 1/4"-20 Tapped Holes
$19.90
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
RM1F/M Support Documentation
RM1F/M25 mm Construction Cube with M6 Tapped Holes
$19.90
Today

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", 12", 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", 12", 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 / Ships
VB01A Support Documentation
VB01A6" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$71.50
Today
VB01 Support Documentation
VB0112" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$91.50
Today
VB01B Support Documentation
VB01B18" Vertical Bracket for Breadboards, 1/4"-20 Holes, 1 Piece
$123.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
VB01A/M Support Documentation
VB01A/M6" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$71.50
Today
VB01/M Support Documentation
VB01/M12" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$91.50
Today
VB01B/M Support Documentation
VB01B/M18" Vertical Bracket for Breadboards, M6 Holes, 1 Piece
$123.00
Today

Large Right-Angle Bracket

AP90RL Holding Breadboard
Click to Enlarge

Two AP90RL Brackets Connected by an Arched Slot
MSAP90 Application

Click 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 / Ships
AP90RL Support Documentation
AP90RLLarge Right-Angle Bracket, 1/4"-20 Holes
$164.00
3-5 Days
+1 Qty Docs Part Number - Metric Price Available / Ships
AP90RL/M Support Documentation
AP90RL/MLarge Right-Angle Bracket, M6 Holes
$164.00
Today

Tombstone Mounting Block

MSAP90 Application

Click 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 / Ships
TS240 Support Documentation
TS240Tombstone Mounting Block with 1/4"-20 & 8-32 Tapped Holes and BA2 Base
$174.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
TS240/M Support Documentation
TS240/MTombstone Mounting Block with M4 & M6 Tapped Holes and BA2/M Base
$174.00
Today

Low-Profile Channel Screws

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
  • Sold in Boxes of 100 Screws
  • SH25LP38: 1/4"-20 Threading, 1/8" Hex Head
  • SH6M10LP: M6 Threading, 4 mm Hex Head

Our Low-Profile Channel Screws have a reduced cap 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
SH25LP38 Support Documentation
SH25LP381/4"-20 Low-Profile Channel Screws (100 Screws/Box)
$23.20
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SH6M10LP Support Documentation
SH6M10LPM6 x 1.0 Low-Profile Channel Screws (100 Screws/Box)
$23.20
Today
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