Loose Bolt, Insert Lock Nut, Nylon Insert, Serrated Flanged Nut, Full
Flanged, K-Nut, Hex Full, Dome, Hex
Brass, Steel, Bright Zinc Plated Steel, Stainless Steel, Ceramic
11.5 mm, 18 mm, 13 mm, 14.2 mm, 6 mm
M20, 7/16-14", 1/4-20"(NE), 4-40"(NM), 8-32"
DIN 985, DIN 982, DIN 6923, DIN 6926, DIN 985/DIN 982
Galvanised, Plain, Bright Zinc Plated, Zinc Plated, Nickel Plated