1/2' Flat, Retaining Washer 0.062' (1.57mm) Thick Nylon.
eBay
350pcs 7 Sizes Black Nylon Flat Washer Gasket Assortment Kit M2 M2.5 M3 M4 M5 M6 M8
Aliexpress UK
#8 Flat, Retaining Washer 0.032' (0.81mm) Thick Nylon.
eBay
M3 M4 M5M6 M8 M10 M12 M14 Screw Nylon Transistor Gasket The Step T-Type Plastic Washer Insulation Spacer Screw Thread Protector
Aliexpress UK
1/2" Nylon Retaining Lock Washer. Properties of Nylon High tensile strength, modulus of elasticity, and impact resistance. Performs well in temperatures up to 185°F. Withstands a wide variety of chemical, alkalis, dilute acids, and oxidizing agents.
eBay
500PCS 8 Sizes M2-M10 Black Nylon Flat Washers Assortment kit M2 M2.5 M3 M4 M5 M6 M8 M10 Plane Spacer Insulation Gasket Ring
Aliexpress UK
Fastener Type: Clip Rivet Retainer Fastener Nut/Bolt. SIZE GUIDE.
eBay
480 Pcs Nylon Flat Round Washers Gaskets Spacers Assortment Set for M2 M2.5 M3 M4 M5 M6 M8 M10 Screw Bolt-Black
Aliexpress UK
#2 Flat, Retaining Washer 0.032' (0.81mm) Thick Nylon.
eBay
M3 M4 M5 M6 M8 M10 M12 M16 Nylon Transistor Gasket The Step T-Type Plastic Washer Insulation Spacer Screw Thread Protector Ring
Aliexpress UK
#8 Flat, Retaining Washer 0.032' (0.81mm) Thick Nylon.
eBay
T-Shaped Nylon Transistor Washer Plastic Screw PC CPU PCB Insulating Particle T-type Insulation Bushing Gasket Step Spacer Bolt
Aliexpress UK
#8 Flat, Retaining Washer 0.062' (1.57mm) Thick Nylon.
eBay
100Pcs/Lot M3 M4 White Plastic Nylon Circular Cylindrical Support Isolation Washer Non Threaded ABS Gasket Ring Circular Hole
Aliexpress UK
#8 Flat, Retaining Washer 0.062' (1.57mm) Thick Nylon.
eBay
1 Box M2 M2.5 M3 M4 Black Plastic Nylon Insulated Hex Standoff Hexagon Pillar Spacer Column Screw Nut Washer Assortment Kit Set
Aliexpress UK