Aerotight, Full, Nylon Insert, Loose Bolt, Half
Full Hex, Dome, Hex Full, Self Locking, Lock nut
Ceramic, Bright Zinc Plated Steel, Steel, Nylon, Stainless Steel
A4, A2 304, 316 A4, Grade 8, A4 316
7.66 mm, 3.2 mm, 9.9 mm, 4 mm, 30 mm
M5, 1/2-13", 1/4-20"(NE), 4-40"(NM), 8-32"
4.1 mm, 6.6 mm, 28 mm, 5 mm, 5.1 mm