0.5mm Thick, C-Mount Brass Spacer Ring

05mm brass spacer rings used in optics and photonics applications are available at Edmund Optics

4 Piece Flexible C-Mount Lens Spacer Ring (0.5mm, 1mm, 1.5mm, 2mm) FCS C-Mount Adapter : Electronics

H62 Brass Sheet Plate Thickness 0.5/0.8mm-6mm Square Metal Plate DIY Brass Sheet

M3x20mm Male To Female Nickel Plated Brass Hex Standoff Spacer

2 Square English Magnetic Base

1550nm CWL, 12.5mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter

40, 8 x 10, 5 Sheets, Non-Adhesive Flock Paper

uxcell M3x30 Female-Female Hex Brass PCB Motherboard Spacer Standoff for FPV Drone Quadcopter, Computer & Circuit Board 25pcs : Industrial & Scientific

Flat Brass Washer O Ring Solid Brass Oring Gasket Shim Copper Metal Meson Pad Spacer M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 - AliExpress

¼-20 Tripod Adapter for Phoenix™ and Triton™

FLIR Blackfly BFLY-U3-23S6M-C Camera