Aerotight, Loose Bolt, Fixing Nut, Serrated Flanged Nut, Half
Full Hex, K-Nut, Flanged, Lock nut, Hex
Stainless Steel, Bright Zinc Plated Steel, Ceramic, Brass, Steel
A4, Grade 8, A4 316, 316 A4, A2 304
55 mm, 7.66 mm, 3.2 mm, 9.9 mm, 30 mm
M1.6, 1/4-20"(NE), M4, 4-40"(NM), 8-32"
6.6 mm, 6 mm, 28 mm, 5 mm, 5.1 mm