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Mini-Series Optical Posts


  • Precision Ground Stainless Steel Posts
  • 4-40 (M3) Tapped Hole in Base and Removable Setscrew in Top
  • Ideal for Miniature and OEM-Level Optomechanical Assemblies

MS3R

MS2R

MS1.5R

MS1R

MS05R

AE4E25E

4-40 Internal and 1/4"-20 External Threads

AP8E4E

8-32 and 4-40 Threads

Front

MSR2 Iris Diaphagm Mounted on a Mini-Series Post in a Mini-Series Post Holder

MSA8

4-40 Internal and
8-32 External Threads

Back

MSA6/M

M3 Internal and
M6 External Threads

Related Items


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Features

  • Designed for Use in Limited Spaces and OEM Applications
  • Essential Building Blocks for Small Assemblies
  • Posts Feature Top- and Bottom-Located 4-40 (M3) Tapped Holes
  • Adapters Available for 8-32 (M4) and 1/4"-20 (M6) Compatibility
  • Compatible with Our Mini-Series Components and Accessories

Thorlabs' Mini-Series Posts are designed to facilitate the integration of our Mini-Series components and accessories into optomechanical setups within a limited space. These posts are designed for compact and OEM-level optomechanical assemblies. Each post includes a 4-40 (M3) setscrew and features top- and bottom-located 4-40 (M3) tapped holes. For compatibility with our standard optomechanical components, we offer post thread adapters to convert among 8-32, 4-40, and 1/4"-20 imperial thread types as well as the M3, M4, and M6 metric thread types. In addition, we offer the HW-KIT5(/M) 4-40 (M3) screw kit, available below, as well as 8-32 (M4) and 1/4"-20 (M6) screw kits for the hardware needed to assemble Mini-Series and standard optomechanical components.

Our Mini-Series Post Holders, which are directly compatible with our Mini-Series Breadboards, can be used to mount our Mini-Series posts while allowing for height adjustment. Alternatively, we also offer Mini-Series Pedestal Posts and Clamping Forks. Both types of posts are designed to support our Mini-Series Kinematic Mirror Mounts, Cylindrical Collimator Mount, and Iris Diaphragm.


Posted Comments:
swaush  (posted 2017-03-28 11:20:43.713)
Can we use cage system rods instead of mini posts? They seem to have the same measures and threads.
tfrisch  (posted 2017-03-29 11:43:24.0)
Hello, thank you for contacting Thorlabs. You can use cage rods as mini series posts, yes.
cbrideau  (posted 2016-08-31 20:25:18.813)
It would be nice to see a version with captive screws like the CF125C. The 4-40 screws are hard to position and handle because they are so tiny.
tfrisch  (posted 2016-09-01 02:00:26.0)
Hello, thank you for suggesting this. I've posted it in our internal engineering forum.
user  (posted 2012-02-23 00:56:56.0)
Hi guys. What applications use these mini series posts and mounts? Trying to decide between these and the (less expensive) standard 1/2-in. Post system...also, do you have adapters if I want to use them on a full size breadboard with 1/4-20 holes? Thanks, Lev.
acable  (posted 2009-08-12 10:39:58.0)
The socket in the thumbscrew for the MSRA90 is a bit to sloppy, this causes the wrench to bind in the socket.
acable  (posted 2007-11-04 09:36:41.0)
Since this is a "new standard", please consider doing a better job in the main portion of the presentation of pointing out what the new standard actually is, i.e. the post size and threads.

Mini-Series Ø6 mm Posts

  • Available in Lengths from 0.5" to 3"
  • Tapped 4-40 (M3) Hole and 4-40 (M3) Setscrew
  • Designed to Mount Mini-Series Components and Accessories

These Mini-Series Ø6 mm posts, which have a 4-40 (M3) setscrew in one end and a 4-40 (M3) tapped hole in the other end, are manufactured using nonmagnetic 303 series stainless steel.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
MS05R Support Documentation
MS05RMini-Series Optical Post, Ø6 mm, L = 0.5"
$6.20
Today
MS1R Support Documentation
MS1RMini-Series Optical Post, Ø6 mm, L = 1"
$6.57
Today
MS1.5R Support Documentation
MS1.5RMini-Series Optical Post, Ø6 mm, L = 1.5"
$6.78
Today
MS2R Support Documentation
MS2RMini-Series Optical Post, Ø6 mm, L = 2"
$7.30
Today
MS3R Support Documentation
MS3RMini-Series Optical Post, Ø6 mm, L = 3"
$8.20
Today
+1 Qty Docs Part Number - Metric Price Available
MS05R/M Support Documentation
MS05R/MMini-Series Optical Post, Ø6 mm, L = 13 mm
$6.20
Today
MS1R/M Support Documentation
MS1R/MMini-Series Optical Post, Ø6 mm, L = 25 mm
$6.57
Today
MS1.5R/M Support Documentation
MS1.5R/MMini-Series Optical Post, Ø6 mm, L = 38 mm
$6.78
Today
MS2R/M Support Documentation
MS2R/MMini-Series Optical Post, Ø6 mm, L = 50 mm
$7.30
Today
MS3R/M Support Documentation
MS3R/MMini-Series Optical Post, Ø6 mm, L = 75 mm
$8.20
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

4-40 and M3 Hardware Kits

  • Ideal for our Mini-Series Breadboards and Optic Mounts
  • We also Offer Individual Cap Screws and Setscrews
HW-KIT5 4-40 Hardware Kit
Item Approx. Qty. Item Approx. Qty.
4-40 Cap Screw, 3/16" Long (SH4S019) 165 4-40 Nut 200
4-40 Cap Screw, 1/4" Long (SH4S025) 135 #4 Washer 350
4-40 Cap Screw, 5/16" Long (SH4S031) 135 3/32" Hex Key for 4-40 Cap Screws 10
4-40 Cap Screw, 3/8" Long (SH4S038) 125 0.050" Hex Key for 4-40 Setscrews (HK050) 10
4-40 Setscrew, 1/4" Long (SS4S025) 190 - -
HW-KIT5/M M3 x 0.5 Hardware Kit
Item Approx. Qty. Item Approx. Qty.
M3 x 0.5 Cap Screw, 5 mm Long (SH3M5) 165 M3 x 0.5 Nut 220
M3 x 0.5 Cap Screw, 6 mm Long (SH3M06) 150 M3 Washer 220
M3 x 0.5 Cap Screw, 8 mm Long (SH3M8) 125 2.5 mm Hex Key for M3 Cap Screws 10
M3 x 0.5 Cap Screw, 10 mm Long (SH3M10) 125 1.5 mm Hex Key for M3 Setscrews 10
M3 x 0.5 Setscrew, 6 mm Long (SS3M6) 195 - -
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
HW-KIT5 Support Documentation
HW-KIT54-40 Cap Screw and Hardware Kit for Mini-Series
$101.91
Today
+1 Qty Docs Part Number - Metric Price Available
HW-KIT5/M Support Documentation
HW-KIT5/MM3 Cap Screw and Hardware Kit for Mini-Series
$101.91
Today
Additional Mini-Series Optical Post Assemblies
  • Mini-Series Posts

  • Mini-Series Post Holders

  • Mini-Series Pedestal Posts

  • Mini-Series Construction Accessories

  • Mini-Series Post Collars

  • Mini-Series Kinematic Mirror Mounts

  • Mini-Series Kinematic Collimator Mount

  • Mini-Series Fixed Lens Mounts

  • Mini-Series Fixed Mirror Mounts

  • Mini-Series Prism Platform Mount

  • Mini-Series Iris Diaphragm

  • Mini-Series Bases/Table Clamps

  • Mini-Series Breadboards

  • Temperature-Controlled Mini-Series Breadboard

  • Mini-Series Hardware

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