OEM Flange to SM Thread Adapters

Compatible with SM-Threaded Lens Tubes and Accessories
Ideal for Coupling SM-Threaded Components onto Enclosures or OEM Devices
SM05-, SM1-, or SM2-Threaded Options Available

SM1F2

External SM1 Threading

Application Idea

SM1F1 Mounted with Lens Tube
on XE25C3 Enclosure

SM2F1

Internal SM2 Threading

SM05F1

Internal SM05 Threading

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Overview
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OEM Flange to SM Thread Adapters
Item #	Threading Type	Thread Depth	Mounting Hole Spacing
SM05F1	Internal SM05	0.39" (10 mm)	0.70" (17.8 mm)
SM1F1	Internal SM1	0.39" (10 mm)	1.06" (26.9 mm)
SM1F2	External SM1^a	0.12" (3.0 mm)	1.06" (26.9 mm)
SM1A53	Internal SM1	0.22" (5.6 mm)	1.02" (26.0 mm)
SM2F1	Internal SM2	0.39" (10 mm)	2.00" (50.8 mm)

The SM1F2 also has 0.14" (3.6 mm) of internal SM1 threading accessible from the back of the adapter.

Features

Adapters to Integrate SM-Threaded Components into OEM Applications

Internal SM05 (0.535"-40) Threading
Internal or External SM1 (1.035"-40) Threading
Internal SM2 (2.035"-40) Threading

Four Counterbored Mounting Holes for 4-40 (M3) Screws

Thorlabs' OEM Flange to SM Thread Adapters allow users to integrate SM-threaded components into existing systems. These adapters can be mounted to any device or enclosure using four 4-40 (M3) screws (not included). The mounting holes are arranged in a square; see the table to the right for the hole spacing on each adapter. The hole spacing on the SM1A53 also allows it to serve as an interface between custom-built setups with an SM1-threaded port and some Nikon Eclipse Ti nosepieces. Once mounted, any compatible SM-threaded components (such as lens tubes and accessories) may be directly mounted to the adapter.

Posted Comments:

user (posted 2022-12-15 19:08:58.033)

Could you create SM2F1 but with external SM2 adapter instead of internal? (similar to SM1F2 but compatible with SM2 thread)

jdelia (posted 2022-12-16 10:40:39.0)

Thank you for contacting Thorlabs. While this is not something we currently offer as a catalog solution, I can certainly pass along your request to our design engineers through our internal suggestion forum. We would currently suggest using the stock SM2F1 along with an SM2 coupler such as SM2T2. This would give you the external threads you need. I have also reached out to you directly to discuss the feasibility of a custom part.

OEM Flange to SM05 Thread Adapter

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Compatible with SM05-Threaded (0.535"-40) Components
Usable Thread Through Entire Width
0.70" (17.8 mm) Mounting Hole Spacing

The SM05F1 Flange to SM05 Adapter features 0.39" (10 mm) of internal SM05 threading for compatibility with any externally SM05-threaded component. The adapter can be secured to a device or enclosure using four 4-40 (M3) screws.

OEM Flange to SM1 Thread Adapters

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The SM1F2 Adapter with External Threads

Compatible with SM1-Threaded (1.035"-40) Components
Internal or External Threading
SM1A53 Low Profile Adapter for Nikon Nosepieces

The SM1F1 Flange to SM1 Adapter features 0.39" (10 mm) of internal SM1 threading, while the SM1A53 has a lower profile with 0.22" (5.6 mm) of internal SM1 threading. Alternatively, the SM1F2 has 0.12" (3.0 mm) of external SM1 threading for compatibility with any internally SM1-threaded component. The SM1F2 also has 0.14" (3.56 mm) of internal SM1 threading, accessible from the back.

The mounting holes on the SM1F1 and SM1F2 are 1.06" (26.9 mm) apart, while the mounting holes of the SM1A53 are 1.02" (26.0 mm) apart. Each adapter can be secured to a device or enclosure using four 4-40 (M3) screws.

OEM Flange to SM2 Thread Adapter

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Compatible with SM2-Threaded (2.035"-40) Components
Usable Thread Through Entire Width
2.00" (50.8 mm) Mounting Hole Spacing

The SM2F1 Flange to SM2 Adapter features 0.39" (10 mm) of internal SM2 threading for compatibility with any externally SM2-threaded component. The adapter can be secured to a device or enclosure using four 4-40 (M3) screws.