Spacers and standoffs - Wikipedia

Rebar spacer - Wikipedia

Standoffs by UNICORP Standard/Metric-Stock/Custom, Hex/Round/Square/28 finishes- Official Site

Spacers and Standoffs - J C Gupta & Sons

Different Types of Fasteners and Their Uses

Sutemribor M2.5 Male Female Hex Brass Spacer Standoff Screw Nut Assortment Kit (180Pcs): : Industrial & Scientific

Spacers and standoffs - Wikipedia

Building a Zynthian Box using an official Kit v2 - ZynthianWiki

Spacers, Washers and Standoffs - BLRS Wiki

Brass M3 M4 Female Threaded Hex Standoff Spacer Pillars for PCB, Computer Case. ● Length: 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13

M3, M4 Female Threaded Brass Hex Standoffs Spacers Pillars Nuts 4mm to 60mm Long