Serrated Flanged Nut, Insert Lock Nut, Full, Half, Loose Bolt
Full Hex, Lock nut, Self Locking, Dome, Hex
Bright Zinc Plated Steel, Nylon, Ceramic, Stainless Steel, Brass
Grade 8, A4, 316 A4, A4 316, A2 304
3.2 mm, 9.9 mm, 19 mm, 5 mm, 30 mm
M2.5, 1/4-20"(NE), M4, M20, 4-40"(NM)
4.1 mm, 6.6 mm, 28 mm, 12 mm, 5.1 mm