Nylon Hex Standoff M-F M4x18mm (10-Pack) - ProtoSupplies

Nylon standoffs are useful for permanently mounting circuit boards or to serve as feet.. M/F standoffs are sometimes used to sandwich electronic assemblies
Non-conductive with male/female M4 threads

Non-conductive with female/female M4 threads

Nylon Hex Standoff F-F M4x40mm (10-Pack) - ProtoSupplies

Standoff M3 Aluminium Hex 5mm x 10mm Black (4 Pack) - ImpulseRC

LitOrange 180 Pieces M4 Male Female Hex Brass Spacer Standoff

RS PRO, RS PRO Standoff, M4 x M4 Thread, 30mm Body, Nylon, Male/Female, 6mm Stud, 653-9419

Standoff - Nylon (4-40; 3/4; 10 pack) - PRT-11796 - SparkFun

Plastic Standoffs, Hex Standoff Metric, Nylon Standoff Spacer

RS PRO, RS PRO Standoff, M4 x M4 Thread, 30mm Body, Nylon, Male/Female, 6mm Stud, 653-9419

M4 Aluminum Hex Standoffs for Drones Packing:30pcs/pack Aluminum standoff M4

New M4 Anodized Black Aluminum Hex Standoff/Spacer 30pcs/Bag (M4X7.0X30mm, Hex)

LitOrange 180 Pieces M4 Male Female Hex Brass Spacer Standoff

Male to Female Standoffs Manufacturer

Male-Male Hex Standoff M4 Altinkaya Enclosures for Electronics

LitOrange 180 Pieces M4 Male Female Hex Brass Spacer Standoff

CREAP M3 M4 M5 Nylon Hex Male Female Standoff Threaded Pillar

LitOrange 180 Pieces M4 Male Female Hex Brass Spacer Standoff