Loose Bolt, Insert Lock Nut, Nylon Insert, Serrated Flanged Nut, Full
Dome, Self Locking, Hex Full, Hex, Flanged
Steel, Stainless Steel, Bright Zinc Plated Steel, Brass, Ceramic
18 mm, 7 mm, 13 mm, 14.2 mm, 6 mm
M20, 8-32", 5/8-11", 1/4-20"(NE), 4-40"(NM)
DIN 985, DIN 982, DIN 6923, DIN 6926, DIN 985/DIN 982
Zinc, Galvanised, Bright Zinc Plated, Plain, Zinc Plated