Full, Insert Lock Nut, Aerotight, Half, Nylon Insert
Hex, Full Hex, K-Nut, Hex Full, Lock nut
Bright Zinc Plated Steel, Brass, Nylon, Ceramic, Stainless Steel
A4, 316 A4, Grade 8, A4 316, A2 304
55 mm, 7.66 mm, 3.2 mm, 9.9 mm, 19 mm
1/4-20"(NE), M8, M2, 4-40"(NM), 8-32"
4.1 mm, 6.6 mm, 28 mm, 5 mm, 5.1 mm