Compare Model Drawings, CAD & Specs Type Height Thread Type Availability Price
$11.50
In Stock
Post Spacer 1.6 mm 1/4-20 (M6) CLR
In Stock
$12.50
In Stock
Post Spacer 3.2 mm 1/4-20 (M6) CLR
In Stock
$14
In Stock
Post Spacer 6.35 mm 1/4-20 (M6) CLR
In Stock
$15
In Stock
Post Spacer 12.7 mm 1/4-20 (M6) CLR
In Stock
$23
In Stock
Extension Post 25.4 mm 1/4-20
In Stock
$29
In Stock
Extension Post 50.8 mm 1/4-20
In Stock
$35
In Stock
Extension Post 76.2 mm 1/4-20
In Stock
$61
In Stock
Grooved Extension Post 101.6 mm 1/4-20
In Stock
$23
In Stock
Extension Post 25.4 mm M6
In Stock
$28
In Stock
Extension Post 50.8 mm M6
In Stock
$34
In Stock
Extension Post 76.2 mm M6
In Stock
$59
In Stock
Grooved Extension Post 101.6 mm M6
In Stock

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.