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Mini-Series Post Holders


  • Mounts Ø6 mm Mini-Series Posts
  • Compatibile with Mini-Series or Standard Breadboards
  • 360° Swivel-Base or Pedestal-Base Options

Swivel-Base Post Holders

MSL3

1/4" (M6) Slot

Pedestal-Base Post Holders

MPH25

MBA1
Mounting Base
#8 (M4) Slot

MSH1.5

#4 (M3) Slot

MPH50

MSC2

Clamping Fork
1/4" (M6) Slot

MSC3

Clamping Fork
#8 (M4) Slot

MSC1

Clamping Fork
#4 (M3) Slot

Pedestal Post Holder Base and Clamping Forks

Related Items


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Mini Pedestal Post with Clamping Fork
Click to Enlarge
View Imperial Product List
Item #QtyDescription
MSL21Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, 1/4" (M6) Slot
MK051Mini-Series Kinematic Mirror Mount for Ø1/2" Optics, 4-40 Taps
MS2R1Mini-Series Optical Post, Ø6 mm, L = 2"
View Metric Product List
Item #QtyDescription
MSL21Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, 1/4" (M6) Slot
MK051Mini-Series Kinematic Mirror Mount for Ø1/2" Optics, 4-40 Taps
MS2R/M1Mini-Series Optical Post, Ø6 mm, L = 50 mm

Swivel base allows access to surrounding mounting holes.
Mini-Series Post Holder with Post Holder Base
Click for Details

MPH50 Post Holder threads onto the MBA1 Post Holder Base.
Mini-Series Post Holder with Clamp
Click to Enlarge

MPH50 Post Holder secured to a Mini-Series Breadboard using the MSC2 Clamping Fork.

Features

  • Post Holders for Mounting Ø6 mm Mini-Series Posts:
    • Swivel-Base Post Holder with #4 (M3) or 1/4" (M6) Slot
    • Pedestal-Base Post Holder
  • Pedestal Post Holder Base and Clamping Forks with #4 (M3), #8 (M4), or 1/4" (M6) Slot
  • Post Can Pass Through Post Holders, Enabling Post to Bottom Out
  • Compatible with Mini-Series or Standard Breadboards

Designed to mount our Ø6 mm posts, Thorlabs' Mini-Series post holders are the ideal solution for mounting Mini-Series components in a compact assembly. Thorlabs offers two types of Mini-Series post holders: swivel base and pedestal base.

Our swivel-base post holders feature a knurled aluminum, hex-locking thumbscrew for securing the post. The base swivels 360° to allow for maximum flexibility when placing parts on a breadboard or optical table. The swivel-base post holders have two mounting slot options to allow for compatibility with both Mini-Series and standard breadboards: the MSH post holders feature a slot for 4-40 (M3) cap screws, and the MSL post holders have a slot for 1/4"-20 (M6) cap screws.

The pedestal-base post holders use a rotatable flexure clamp with 5/64" (2.0 mm) hex to secure the post. The flexure clamp can be rotated 360° for easy access to the locking screw. The pedestal base of the post holders is compatible with our Mini-Series clamping forks (sold below) which have #4 (M3), #8 (M4) or 1/4" (M6) slots. For additional mounting flexibility, the MPH post holders are also directly compatible with the MBA1 Mini-Series post holder base (sold below). The MBA1 is secured to the post holder using threads for added stability and features a slot for 8-32 (M4) cap screws to secure the MPH post holders to a Mini-Series breadboard

For additional height adjustment, the hollow base of both types of post holders allows the Ø6 mm posts to rest on the optical table, which enables the largest possible range of post height adjustment. Please note that our Ø6 mm posts feature a 4-40 (M3) tap, making them compatible only with other Mini-Series components.


Posted Comments:
cbrideau  (posted 2016-12-09 17:46:27.613)
It would be nice to see 8-32(M4) threaded 6mm posts for directly working with '05 series mounts and hardware. This would eliminate the need for the 4-40(M3) to 8-32(M4) adapter you have to get with every mount to make this work.
tfrisch  (posted 2016-12-15 09:37:03.0)
Hello, thank you for contacting Thorlabs. I have posted this in our internal engineering forum.

Swivel-Base Mini-Series Post Holders, #4 (M3) Slot

Mini-Series Post Holder Slot Diagram
Click for Details

Mounting Features
  • 360° Swiveling Base with #4 (M3) Slot
  • Precision-Machined Square Relief Cut Provides Stable Two-Line Contact
  • Knurled Aluminum Thumbscrew with 3/32" Hex Firmly Holds Post
Thorlabs' MSH post holders feature a swiveling base with a counterbored slot for 4-40 (M3) cap screws. This slot is compatible with our MS12B (MS12B/M) breadboard, and the base's swivel design enables easy access to surrounding mounting holes. To use the minimum height of a post, these post holders have a through hole that allows the post to rest on the breadboard.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MSH075 Support Documentation
MSH075Swivel-Base Mini-Series Post Holder, 3/4" (19 mm) Tall, #4 (M3) Slot
$32.31
Today
MSH1 Support Documentation
MSH1Swivel-Base Mini-Series Post Holder, 1" (25 mm) Tall, #4 (M3) Slot
$33.36
Today
MSH1.5 Support Documentation
MSH1.5Swivel-Base Mini-Series Post Holder, 1.5" (38 mm) Tall, #4 (M3) Slot
$35.72
Today
MSH2 Support Documentation
MSH2Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, #4 (M3) Slot
$38.09
Today
MSH3 Support Documentation
MSH3Swivel-Base Mini-Series Post Holder, 3" (76 mm) Tall, #4 (M3) Slot
$42.55
Today

Swivel-Base Mini-Series Post Holders, 1/4" (M6) Slot

Mini-Series Post Holder Slot Diagram
Click for Details

Mounting Features
  • 360° Swiveling Base with 1/4”-20 (M6) Slot
  • Precision-Machined Square Relief Cut Provides Stable Two-Line Contact
  • Knurled Aluminum Thumbscrew with 3/32" Hex Firmly Holds Post
Thorlabs' MSL post holders feature a swiveling base with a slot for 1/4"-20 (M6) cap screws. This slot is compatible with our MSB Mini-Series Breadboards as well as our standard 1/4"-20 (M6) optical tables and breadboards, and the base's swivel design enables easy access to surrounding mounting holes. To use the minimum height of a post, these post holders have a through hole that allows the post to rest on the breadboard.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MSL075 Support Documentation
MSL075Customer Inspired! Swivel-Base Mini-Series Post Holder, 3/4" (19 mm) Tall, 1/4" (M6) Slot
$33.36
Today
MSL1 Support Documentation
MSL1Customer Inspired! Swivel-Base Mini-Series Post Holder, 1" (25 mm) Tall, 1/4" (M6) Slot
$33.36
Today
MSL1.5 Support Documentation
MSL1.5Customer Inspired! Swivel-Base Mini-Series Post Holder, 1.5" (38 mm) Tall, 1/4" (M6) Slot
$35.72
Today
MSL2 Support Documentation
MSL2Customer Inspired! Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, 1/4" (M6) Slot
$38.09
Today
MSL3 Support Documentation
MSL3Customer Inspired! Swivel-Base Mini-Series Post Holder, 3" (76 mm) Tall, 1/4" (M6) Slot
$42.55
Today

Pedestal-Base Mini-Series Post Holders

Lens and Iris with Mini-Series Post Holders
Click to Enlarge

View Imperial Product List
Item #QtyDescription
MPH252Pedestal-Base Mini-Series Post Holder with Flexure Clamp, 25 mm (0.98") Tall
MBA12Mini-Series Pedestal Post Holder Base, #8 (M4) Slot
MK051Mini-Series Kinematic Mirror Mount for Ø1/2" Optics, 4-40 Taps
ID5MS1Mini-Series Post-Mounted Iris, Ø5.1 mm Max Aperture (Ø6 mm Post, 1.5" Long)
MS2R1Mini-Series Optical Post, Ø6 mm, L = 2"
SH8S03828-32 Stainless Steel Cap Screw, 3/8" Long, Pack of 50
W8S0382#8 Washer, M4 Compatible, Stainless Steel, Pack of 100

View Metric Product List
Item #QtyDescription
MPH252Pedestal-Base Mini-Series Post Holder with Flexure Clamp, 25 mm (0.98") Tall
MBA12Mini-Series Pedestal Post Holder Base, #8 (M4) Slot
MK051Mini-Series Kinematic Mirror Mount for Ø1/2" Optics, 4-40 Taps
ID5MS1Mini-Series Post-Mounted Iris, Ø5.1 mm Max Aperture (Ø6 mm Post, 1.5" Long)
MS2R/M1Mini-Series Optical Post, Ø6 mm, L = 50 mm
SH4MS102M4 x 0.7 Stainless Steel Cap Screw, 10 mm Long, Pack of 50
W8S0382#8 Washer, M4 Compatible, Stainless Steel, Pack of 100

Iris and MK05 with lens mounted with 1/2" separation using MPH25 post holders with MBA1 bases.
Mini-Series Post Holder with Clamp
Click to Enlarge

MPH50 Post Holder secured to a Mini-Series Breadboard using the MSC2 Clamping Fork.
  • Pedestal-Style Base for Use with Clamping Forks
  • Bottom-Located Internal Threads Attach to MBA1 (Available Below)
  • Precision-Machined Relief Cut Provides Stable Two-Line Contact
  • 360° Rotating Flexure Clamp with 5/64" (2.0 mm) Hex for Securing Post

Thorlabs’ MPH post holders are designed to be as compact as possible to accommodate tight setups. The diameter of the post holder allows for two posts to be mounted in contact with each other using adjacent holes on an imperial or a metric Mini-Series breadboard with 1/2" or 12.5 mm spacing (see photo to the far right). To use the minimum height of a post, these post holders have a through hole that allows the post to rest on the breadboard.

These post holders feature a flexure clamp with a 5/64" (2.0 mm) hex for securing our Ø6 mm posts. The flexure clamp rotates 360° so that the locking screw can be easily accessed in any orientation or moved out of the way when mounting two posts side-by-side. The vertical translation of the post locks before the rotation of the flexure clamp locks, making it possible to fine-tune the rotation after locking the height. Once the locking screw is fully tightened, the flexure clamp will no longer rotate.

Each post holder has a pedestal base allowing them to be secured to an optical table or breadboard with our Mini-Series clamping forks (sold below). The clamping forks provide either a #4 (M3), #8 (M4), or 1/4" (M6) mounting slot. Alternatively, we offer the MBA1 (sold below) which screws directly into the bottom of the post holder and provides a #8 (M4) mounting slot ideal for use with Mini-Series breadboards.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MPH25 Support Documentation
MPH25Pedestal-Base Mini-Series Post Holder with Flexure Clamp, 25 mm (0.98") Tall
$26.78
Today
MPH50 Support Documentation
MPH50Pedestal-Base Mini-Series Post Holder with Flexure Clamp, 50 mm (1.97") Tall
$29.87
Today
MPH75 Support Documentation
MPH75Pedestal-Base Mini-Series Post Holder with Flexure Clamp, 75 mm (2.95") Tall
$30.90
Today

Pedestal Post Holder Base, #8 (M4) Slot

Mini-Series Post Holder with Post Holder Base
Click for Details

MBA1 Post Holder Base threaded onto MPH50 Post Holder.
  • External Threads Attach to Pedestal-Base Mini-Series Post Holders
  • #8 (M4) Mounting Slot for Use with Mini-Series Breadboards
  • Ø6 mm Through Hole Allows Post to Bottom Out
The MBA1 post holder base is designed to be used with the MPH Pedestal-Base Mini-Series post holders sold above. It screws directly onto the bottom of the MPH and features an #8 (M4) mounting slot that is 0.70" (17.7 mm) long for the post holder, making it the ideal solution for mounting MPH post holders on our Mini-Series breadboards. To use the minimum height of a post, thes post holder bases have a through hole that allows the post to rest on the breadboard.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MBA1 Support Documentation
MBA1Mini-Series Pedestal Post Holder Base, #8 (M4) Slot
$18.11
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 or our pedestal-base post holders (sold above). 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
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