0.5 in. Diameter Stainless Steel Optical Mounting Posts

Overview

SP Series 0.5 in. (12.7 mm) diameter optical mounting posts provide highly stable and versatile mounting of optics, featuring a solid stainless-steel construction and an 8-32 (M4) threaded hole in one end and a 1/4-20 (M6) threaded hole in the other end. SP Series posts can be connected using thread adapters, contain cross-drilled holes to aid in tightening and loosening posts, and can be inserted into 0.5 in. Optical Post Holders. The posts are precision ground and offered in a wide range of heights, with tapped holes at each end and a set screw included for joining posts together to create customizable lengths.

Tapped Holes in Both Ends

SP Series Optical Mounting Posts are precision ground 0.5 in. (12.7 mm) diameter stainless steel optical posts with an 8-32 (or M4 for metric versions) tapped hole in one end and a 1/4-20 (M6) tapped hole in the other end. Each optical mounting post is supplied with an 8-32 (M4) double-ended set screw for joining posts together to create customizable lengths, and different ends of the posts can also be connected with thread adapters.

Eleven Different Height Options

The SP series optical posts are offered in eleven different heights between 0.75 in. (19.1 mm) and 12 in. (304.8 mm). All eleven models are also available in metric versions, which include an M- prefix in the model number.

Compatible With a Wide Variety of Optical Post Holders

These optical posts are compatible with a variety of 0.5 in. Optical Post Holders which lock posts in place over a range of the posts' lengths, giving a continuous and customizable height to the mounted component. Newport's post holder families feature innovative designs such as a brake-shoe clamp, a quick-release cam-lock, a slotted base, kinematic indentations, and magnetic bases.

Cross-Drilled Hole for Easy Tightening and Loosening

Posts that are 2 inches and taller feature a 0.1 in. (2.5 mm) diameter cross-drilled hole below the 8-32 (M4) end. By inserting a 5/64 in. (2 mm) hex wrench into this hole, it can be used to rotate the post to tighten it into or loosen it from the optical table or breadboard more easily.

Convert 0.5 in. Optical Post to Pedestal

The SP-BZ pedestal base adapter features a 1/4-20 (M6) threaded hole and attaches to the 1/4-20 (M6) end of a 0.5 in. post, allowing the post to be mounted anywhere on an optical table just like a pedestal. A magnet located inside the base steadies the post prior to clamping it to an optical table using the SP-F fork.

Accessories for Customizable Heights and Architectures

Post spacers and threaded extenders are available to offer precise tuning of mounting height, allowing optics to be mounted at non-standard heights. Post collars provide an index point for a specific post height, post-joining angle clamps offer versatile post-to-post mounting, optical mount adapter clamps fasten a mount at any angle to a post, and electrical isolating adapters are available for applications requiring electrical isolation.

Common Specifications