Loose Bolt, Insert Lock Nut, Serrated Flanged Nut, Fixing Nut, Half
Self Locking, Lock nut, Flanged, Hex, Hex Full
Brass, Bright Zinc Plated Steel, Stainless Steel, Ceramic, Nylon
A4, 316 A4, Grade 8, A2 304, A4 316
9.9 mm, 5 mm, 19 mm, 30 mm, 13 mm
1/4-20", 1/2-13", 5/8-11", 4-40"(NM), 8-32"
4.1 mm, 6.6 mm, 28 mm, 6 mm, 5.1 mm