Full, Loose Bolt, Serrated Flanged Nut, Fixing Nut, Half
Self Locking, Hex Full, Lock nut, Flanged, Hex
Brass, Ceramic, Bright Zinc Plated Steel, Nylon, Stainless Steel
Grade 8, A4, 316 A4, A4 316, A2 304
9.9 mm, 19 mm, 17 mm, 30 mm, 24 mm
1/4-20"(NE), M4, M16, 5/8-11", 4-40"(NM)
4.1 mm, 6.6 mm, 28 mm, 12 mm, 5.1 mm