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Ø12 mm Pedestal Posts


  • Precision Ground Stainless Steel Pedestal Posts
  • 4-40 (M3) or 8-32 (M4) Removable Setscrew in Top
  • Clamping Forks Secure Pedestal Posts
  • Ideal for Miniature and OEM-Level Optomechanical Assemblies

MSC2

Slot for a 1/4"-20 (M6) Cap Screw

MSP2

MSP1.5

MSP1

MSP05

TRP50/M

TRP1.17

TRP1

TRP14/M

MSC3

Counterbored Slot for an 8-32 (M4) Cap Screw

MSC1

Counterbored Slot for a 4-40 (M3) Cap Screw

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Features

  • Designed for Use in Limited Spaces and OEM Applications
  • Essential Building Blocks for Small Assemblies
  • Ø12 mm Pedestal Posts:
    • 4-40 (M3) Setscrew and 4-40 (M3) Tapped Base
    • 8-32 (M4) Setscrew and 1/4"-20 (M6) Tapped Base
  • Clamping Forks Secure Pedestal Posts and Accept 4-40 (M3), 8-32 (M4), 1/4"-20 (M6) Cap Screws
  • Mini-Series Thread Adapters Available for 8-32 (M4) and 1/4"-20 (M6) Compatibility

Thorlabs' Ø12 mm Pedestal Posts are designed to be used in space constrained setups and OEM applications. They are part of our Mini-Series optomechanical components, which are designed to increase the number of optical elements that can be assembled within a limited space. The pedestal posts on this page can be used to enable the integration of our Mini-Series components and accessories for compact and OEM-level optomechanical assemblies. Two different pedestal posts are offered: posts with a 4-40 (M3) setscrew and tapped holes, and posts with an 8-32 (M4) setscrew and bottom-located 1/4"-20 (M6) tapped hole.

Pedestal posts with 4-40 (M3) taps are directly compatible with our MS12B(MS12B/M) Mini-Series breadboard. Pedestal posts with an 8-32 (M4) setscrew and 1/4"-20 (M6) tap are directly compatible with our 8-32 (M4) and 1/4"-20 (M6) Mini-Series breadboards as well as other breadboards with 1/4"-20 (M6) taps. In addition, the TRP057 (TRP14/M) and TRP1.17 (TRP29/M) posts can be used with many 60 mm cage plates and 30 mm cage plates to position the center of mounted optics 50 mm above the pedestal's mounting surface. This matches the optic height of our Polaris® fixed monolithic mount, a selection of our Polaris mounting posts, and our DIY Cerna® Breadboard Top with Two-Position Slider.

These Ø12 mm pedestal posts are designed to be used with our clamping forks and post thread adapters, which expand their functionality. The clamping forks secure these pedestal posts to breadboards and optical tables and are compatible with 4-40 (M3), 8-32 (M4), or 1/4"-20 (M6) taps. The forks swivel around the pedestal-style post to access the most convenient mounting holes. We also offer post thread adapters to enable compatibility across Mini-Series and other components by converting among the 8-32, 4-40, and 1/4"-20 imperial thread types as well as the M3, M4, and M6 metric thread types.

Our range of Mini-Series products facilitates setups combining both standard and Mini-Series optomechanical components and accessories. For questions regarding our Mini-Series products, please contact Tech Support.


Posted Comments:
dfilgas  (posted 2018-05-15 13:31:40.043)
need to offer 1/8" and 1.4" spacers for use on top of MSP posts to get fixed lens mounts to and even beam height. You have spacers for the 1" fixed posts. The MSP posts need them as well.
YLohia  (posted 2018-05-15 04:42:30.0)
Hello, thank you for your feedback. I will suggest this idea in our internal engineering forum. In the meantime, it may be worth noting that the TRxM series spacers on this page (https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=1266) are compatible with the TRP series Ø12 mm Pedestal Posts with 8-32 (M4) Setscrew.

Ø12 mm Pedestal Posts with 4-40 (M3) Setscrew

Mini Pedestal Post with Clamping Fork
Click to Enlarge
A Mini-Series Pedestal Post secured to a Mini-Series Breadboard using the MSC1 Clamping Fork.
  • Solid, Stainless Steel Construction
  • Available in Lengths from 0.5" to 2" (Imperial) or 12.5 mm to 50.0 mm (Metric)
  • 4-40 (M3) Removable Setscrew in Top and 4-40 (M3) Tapped Hole in Base
  • Ø14 mm Pedestal Base Compatible with MSC Clamping Forks (Available Below)

These Ø12 mm pedestal posts provide a solid mounting structure for our Mini-Series optical mounts. These posts are made from a nominally nonmagnetic 300 series stainless steel. The top and bottom of the posts have 4-40 (M3) tapped holes. A setscrew is provided pre-mounted in the top of the post for connecting to 4-40-tapped components. To easily distinguish the metric posts from their imperial counterparts, the metric posts have a ring-shaped groove in the pedestal base, as shown in the photo to the right.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
MSP05 Support Documentation
MSP05Ø0.47" Pedestal Pillar Post, 4-40 Setscrew and Taps, L = 0.5"
$18.70
Today
MSP1 Support Documentation
MSP1Ø0.47" Pedestal Pillar Post, 4-40 Setscrew and Taps, L = 1"
$19.76
Today
MSP1.5 Support Documentation
MSP1.5Ø0.47" Pedestal Pillar Post, 4-40 Setscrew and Taps, L = 1.5"
$21.01
Today
MSP2 Support Documentation
MSP2Ø0.47" Pedestal Pillar Post, 4-40 Setscrew and Taps, L = 2"
$22.17
Today
+1 Qty Docs Part Number - Metric Price Available
MSP05/M Support Documentation
MSP05/MØ12 mm Pedestal Pillar Post, M3 Setscrew and Taps, L = 12.5 mm
$18.70
Today
MSP1/M Support Documentation
MSP1/MØ12 mm Pedestal Pillar Post, M3 Setscrew and Taps, L = 25 mm
$19.76
Today
MSP1.5/M Support Documentation
MSP1.5/MØ12 mm Pedestal Pillar Post, M3 Setscrew and Taps, L = 38 mm
$21.01
Today
MSP2/M Support Documentation
MSP2/MØ12 mm Pedestal Pillar Post, M3 Setscrew and Taps, L = 50 mm
$22.17
Today

Ø12 mm Pedestal Posts with 8-32 (M4) Setscrew

Pedestal Posts with Mounted 60 mm and 30 mm Cage System Fixed Optic Mounts
Click to Enlarge

To position optics 50 mm above the mounting surface: pair the TRP1.17 (TRP29/M) with one of Thorlabs' 30 mm cage plates that have an edge-to-center distance of 20.3 mm, and the TRP057 (TRP14/M) with one of several 60 mm cage plates that have an edge-to-center distance of 35.6 mm. 
  • Solid, Stainless Steel Construction
  • Available in Lengths from 0.568" to 2.0" (Imperial) or 14.4 mm to 50.0 mm (Metric)
  • 8-32 (M4) Double-Ended Setscrew in Top and Tapped 1/4"-20 (M6) Hole in Base
  • Ø14 mm Pedestal Base Compatible with MSC Clamping Forks (Available Below)

These pedestal posts provide a compact footprint and low weight for optical mounts and optical tables. These virtually non-magnetic 303 stainless steel (SS) posts are precision ground to Ø12 mm and feature a Ø14 mm pedestal base compatible with our Mini-Series clamping forks (available below). As illustrated in the image to the right, the TRP057 (TRP14/M) and TRP1.17 (TRP29/M) posts can be used with many 60 mm cage plates and 30 mm cage plates to position the center of mounted optics 50 mm above the pedestal's mounting surface. 

The bases of these pedestal posts feature a 1/4"-20 (M6) tapped hole, while the tops have removable double-ended 8-32 (M4) setscrews [5/64" (2 mm) hex]. A side-located Ø0.10" (Ø2.4 mm) hole is bored straight through the post; using a balldriver inserted through the hole provides extra leverage when tightening mounted components. To easily distinguish the metric posts from their imperial counterparts, the metric posts have a ring-shaped groove in the pedestal base.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
TRP057 Support Documentation
TRP057Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 0.568"
$19.01
Today
TRP075 Support Documentation
TRP075Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 0.75"
$19.23
Today
TRP1 Support Documentation
TRP1Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 1.0"
$19.76
Today
TRP1.17 Support Documentation
TRP1.17Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 1.168"
$20.06
Today
TRP1.5 Support Documentation
TRP1.5Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 1.5"
$21.01
Today
TRP2 Support Documentation
TRP2Ø0.47" Pedestal Pillar Post, 8-32 Setscrew, 1/4"-20 Tap, L = 2.0"
$22.17
Lead Time
+1 Qty Docs Part Number - Metric Price Available
TRP14/M Support Documentation
TRP14/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 14.4 mm
$19.01
5-8 Days
TRP20/M Support Documentation
TRP20/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 20.0 mm
$19.23
5-8 Days
TRP25/M Support Documentation
TRP25/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 25.0 mm
$19.76
Today
TRP29/M Support Documentation
TRP29/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 29.7 mm
$20.06
5-8 Days
TRP38/M Support Documentation
TRP38/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 38.0 mm
$21.01
Today
TRP50/M Support Documentation
TRP50/MØ12 mm Pedestal Pillar Post, M4 Setscrew, M6 Tap, L = 50.0 mm
$22.17
Today

Mini-Series Clamping Forks

Mini Pedestal Post with Clamping Fork
Click to Enlarge

An MSC2 Clamping Fork secures a Mini-Series pedestal post to a breadboard with 1/4"-20 tapped holes.
  • Secure Any of Our Ø12 mm Pedestal Posts or Pedestal-Base Post Holders to Breadboards or Optical Tables
  • MSC1 Has a 0.63" (15.9 mm) Long Counterbored Slot for a 4-40 (M3) Cap Screw
  • MSC3 Has a 0.59" (14.9 mm) Long Counterbored Slot for an 8-32 (M4) Cap Screw
  • MSC2 Has a 0.63" (15.9 mm) Long Slot for a 1/4"-20 (M6) Cap Screw
  • Swivel Fork 360° to Select the Most Convenient Mounting Hole

Our clamping forks are designed to provide exceptional clamping force when used with our Ø12 mm pedestal posts (sold above) or our pedestal-base post holders. These clamping forks provide flexibility for building setups that combine Mini-Series components and our larger range of optomechanics offerings. The MSC1 and MSC2 are made from anodized aluminum, while the MSC3 is made from precipitation hardened 17-4PH stainless steel to provide a more uniform clamping force.

Designed to be used with the Mini-Series breadboards, the MSC1 and MSC3 are compatible with a 4-40 (M3) and 8-32 (M4) cap screw, respectively. The MSC2 slot accepts 1/4"-20 (M6) cap screws, thus enabling the inclusion of Mini-Series posts and components into setups on standard breadboards and optical tables in addition to mini-series breadboards.

Each clamping fork features landing pads on the bottom surface to maximize stability when using a washer and cap screw to lock down a post with the fork. Please note that significant overtightening of clamping forks can deform the surface of an optical table, which can cause misalignment of components.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MSC1 Support Documentation
MSC1Clamping Fork for 4-40 (M3) Cap Screw
$14.33
Today
MSC3 Support Documentation
MSC3Clamping Fork for 8-32 (M4) Cap Screw
$13.39
Today
MSC2 Support Documentation
MSC2Clamping Fork for 1/4"-20 (M6) Cap Screw
$16.23
Today

Mini-Series Thread Adapters

These thread adapters are designed to interface our standard-series and our Mini-Series optomechanical components. This is a portion of Thorlabs' complete line of thread adapters, which are available for many common thread standards.

Mechanical Drawing Item # Thread A Thread B Length C Typical Application
Thread Adapter Mechanical Drawing AP8E4E 8-32 4-40 0.38"
(9.7 mm)
Attach Components with 8-32 Tapped Holes
to Imperial Mini-Series Posts
AP4M3M M4 M3 0.38"
(9.7 mm)
Attach Components with M4 Tapped Holes
to Metric Mini-Series Posts
Mechanical Drawing Item # Thread A Thread B Length C Typical Application
Thread Adapter Mechanical Drawing MSA8 4-40 8-32 0.50"
(12.7 mm)
Attach Components with 8-32 Tapped Holes
to Imperial Mini-Series Posts
MSA4/M M3 M4 0.50"
(12.7 mm)
Attach Components with M4 Tapped Holes
to Metric Mini-Series Posts
MSA25 4-40 1/4"-20 0.55"
(14.0 mm)
Attach Components with 1/4"-20 Tapped Holes
to Imperial Mini-Series Posts
MSA6/M M3 M6 0.55"
(14.0 mm)
Attach Components with M6 Tapped Holes
to Metric Mini-Series Posts
Mechanical Drawing Item # Thread A Thread B Length C Typical Application

Thread Adapter Mechanical Drawing

AE4E25E 4-40 1/4"-20 0.38"
(9.5 mm)
Attach Mini-Series Bases to
1/4"-20-Threaded Optical Tables
AE3M6M M3 M6 0.39"
(10.0 mm)
Attach Mini-Series Bases to
M6-Threaded Optical Tables
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
AP8E4E Support Documentation
AP8E4EAdapter with External 8-32 Threads and External 4-40 Threads
$2.04
Today
MSA8 Support Documentation
MSA8Mini-Series Adapter with External 8-32 Threads and Internal 4-40 Threads
$5.25
Today
MSA25 Support Documentation
MSA25Mini-Series Adapter with External 1/4"-20 Threads and Internal 4-40 Threads
$5.25
Today
AE4E25E Support Documentation
AE4E25EAdapter with Internal 4-40 Threads and External 1/4"-20 Threads
$4.40
Today
+1 Qty Docs Part Number - Metric Price Available
AP4M3M Support Documentation
AP4M3MAdapter with External M4 Threads and External M3 Threads
$2.04
Today
MSA4/M Support Documentation
MSA4/MMini-Series Adapter with External M4 Threads and Internal M3 Threads
$5.25
Today
MSA6/M Support Documentation
MSA6/MMini-Series Adapter with External M6 Threads and Internal M3 Threads
$5.25
Today
AE3M6M Support Documentation
AE3M6MAdapter with Internal M3 x 0.5 Threads and External M6 x 1.0 Threads
$4.40
Today
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