1.5 in. Post Extenders and Spacers

1.5 in. (38.1 mm) diameter optical post spacers and extenders increase the height of an SR-Z series magnetic pedestal pillar or non-magnetic mounting base to be closer to the required optical height without sacrificing stability. Spacers as thin as 1/16th of an inch (1.6 mm) and extensions as long as 4 in. (101.6 mm) are available, all made from solid stainless steel. In particular, the 4 in. (101.6 mm) SR-4P extension post features a "V" groove that allows the sliding clamp with its spring-loaded ball detent to ride linearly along the rod without unintentional rotation.

Use standalone or as pedestal extension
Index marks allow quick height reference for easy identification
Solid steel construction

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Showing 10 of 12 total products

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Description	Compatibility	Type	Height	Thread Type	Avail.	Price
SR-0.063-SPedestal Pillar Spacer, 0.063 in. Thick, 1.5 in. Diameter, 1/4-20 CLR	UNIVERSAL	Post Spacer	1.6 mm	1/4-20 (M6) CLR	FREE 2-day shipping on thousands of products on Newport.com Learn More	$14.70
SR-0.125-SPedestal Pillar Spacer, 0.125 in. Thick, 1.5 in. Diameter, 1/4-20 CLR	UNIVERSAL	Post Spacer	3.2 mm	1/4-20 (M6) CLR	FREE 2-day shipping on thousands of products on Newport.com Learn More	$15.90
SR-0.25-SPedestal Pillar Spacer, 0.25 in. Thick, 1.5 in. Diameter, 1/4-20 CLR	UNIVERSAL	Post Spacer	6.35 mm	1/4-20 (M6) CLR	FREE 2-day shipping on thousands of products on Newport.com Learn More	$17.70
SR-0.50-SPedestal Pillar Spacer, 0.50 in. Thick, 1.5 in. Diameter, 1/4-20 CLR	UNIVERSAL	Post Spacer	12.7 mm	1/4-20 (M6) CLR	FREE 2-day shipping on thousands of products on Newport.com Learn More	$19.10
SR-1EOptical Post, 1.0 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	Extension Post	25.4 mm	1/4-20	FREE 2-day shipping on thousands of products on Newport.com Learn More	$31
SR-2EOptical Post, 2.0 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	Extension Post	50.8 mm	1/4-20	FREE 2-day shipping on thousands of products on Newport.com Learn More	$36
SR-3EOptical Post, 3.0 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	Extension Post	76.2 mm	1/4-20	FREE 2-day shipping on thousands of products on Newport.com Learn More	$43
SR-4POptical Post, 4.0 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	Grooved Extension Post	101.6 mm	1/4-20	FREE 2-day shipping on thousands of products on Newport.com Learn More	$75
M-SR-1EOptical Post, 25.4 mm Height, 38.1 mm Diameter, M6 Thread	METRIC	Extension Post	25.4 mm	M6	FREE 2-day shipping on thousands of products on Newport.com Learn More	$31
M-SR-2EOptical Post, 50.8 mm Height, 38.1 mm Diameter, M6 Thread	METRIC	Extension Post	50.8 mm	M6	FREE 2-day shipping on thousands of products on Newport.com Learn More	$36

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Features

Extension Posts and Spacers for Customizable Heights

Threaded extension posts and spacers allow mounting certain optics at non-standard heights. These stainless steel constructed extension posts and spacers provide a wide variety of options for building posts to mount optical components at customizable heights.

Specially Designed Groove and Peg Extension Post

SR-4P is a special purpose extension post for use with the SR-SC sliding clamp. It features a "V" groove along the axial length of the rod to support the sliding SR-SC clamp and its spring-loaded linear motion. This prevents undesired rotation during alignment, and with Newport’s patented peg fastener, two SR-4P can be aligned as a composite system.

1.5 in. Post Extenders and Spacers

1.5 in. Post Extenders and Spacers

Features

Extension Posts and Spacers for Customizable Heights

Specially Designed Groove and Peg Extension Post

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