Loose Bolt, Insert Lock Nut, Serrated Flanged Nut, Full, Nylon Insert
Self Locking, K-Nut, Flanged, Hex Full, Hex
Steel, Stainless Steel, Bright Zinc Plated Steel, Brass, Ceramic
18 mm, 8 mm, 13 mm, 14.2 mm, 6 mm
M20, 1/4-20"(NE), 5/16-18", 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