Aerotight, Half, Nylon Insert, Loose Bolt, Full
Full Hex, Dome, Lock nut, Flanged, Hex Full
Nylon, Brass, Ceramic, Steel, Stainless Steel
A4, A2 304, 316 A4, Grade 8, A4 316
7.66 mm, 19 mm, 13 mm, 3.2 mm, 9.9 mm
1/4-20"(NE), M8, M10, 4-40"(NM), 8-32"
4.1 mm, 6.6 mm, 28 mm, 12 mm, 5.1 mm