2.0mm Thick, C-Mount Brass Spacer Ring

Products – Tagged PISTON & SLEEVE – RcRaceControl

6mm Diameter, S-Mount Thin Optic Mount

2.0mm Thick, C-Mount Brass Spacer Ring, Ring Spacers

C-CS Mount Converter Spacer Ring C-CS Mount Aliminum Adapter Ring

Depcom International

2 Square English Magnetic Base

Mounting Basics Selection Guide - Thorlabs

Wilkinson 52mm (2-3/64 inch) String Spacing Adjustable

Holographic Diffusers used to control the diffuse area of illumination and increase transmission efficiency from sources are available at Edmund

20° Diffusing Angle 2 x 2 Unmounted Sheet

50.0mm Dia. x 175.0mm FL, Uncoated, Plano-Convex Lens

Alchemy Power Inc. Spacers. 2.5mm x 15mm Brass Spacer Standoff kit for Raspberry Pi Hats/Boards : Electronics

Spacer - Solid Brass (Non-plated) - Choose your size

Brass Clearance Spacers - Brass Spacers - Pillars and Spacers - G&B Projects

Solid brass hollow threaded spacer M10 in dark bronze

M5 x 60 mm + 7 mm Male to Female Hex Brass Spacer Standoff 3pcs