Compare Model Drawings, CAD & Specs Type Height Thread Type Material Availability Price
$22
In Stock
Extension Post 25.4 mm M6 Stainless Steel
In Stock
$27
In Stock
Extension Post 50.8 mm M6 Stainless Steel
In Stock
$33
In Stock
Extension Post 76.2 mm M6 Stainless Steel
In Stock
$56
In Stock
Grooved Extension Post 101.6 mm M6 Stainless Steel
In Stock
$11
In Stock
Post Spacer 1.6 mm 1/4-20 (M6) CLR Stainless Steel
In Stock
$12
In Stock
Post Spacer 3.2 mm 1/4-20 (M6) CLR Stainless Steel
In Stock
$13.50
In Stock
Post Spacer 6.35 mm 1/4-20 (M6) CLR Stainless Steel
In Stock
$14.50
In Stock
Post Spacer 12.7 mm 1/4-20 (M6) CLR Stainless Steel
In Stock
$22
In Stock
Extension Post 25.4 mm 1/4-20 Stainless Steel
In Stock
$28
In Stock
Extension Post 50.8 mm 1/4-20 Stainless Steel
In Stock
$34
In Stock
Extension Post 76.2 mm 1/4-20 Stainless Steel
In Stock
$58
In Stock
Grooved Extension Post 101.6 mm 1/4-20 Stainless Steel
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.