Loose Bolt, Fixing Nut, Serrated Flanged Nut, Full, Half
Hex Full, Self Locking, Full Hex, Lock nut, Flanged
Brass, Ceramic, Stainless Steel, Nylon, Steel
A4, A2 304, 316 A4, Grade 8, A4 316
3.2 mm, 9.9 mm, 8 mm, 5 mm, 19 mm
1/4-20"(NE), M6, M2.5, 4-40"(NM), 8-32"
4.1 mm, 12 mm, 6.6 mm, 28 mm, 5.1 mm