UNC Full Hex Nuts ASME B18. 2. 2 / B18. 6.3 in Bright Zinc Plated (BZP) USA grade 5 high tensile steel
Hexagon full nut to ASME B18.2.2 and B18.6.3. Typically fitted with a spanner or ratchet with socket. The most popular nut type, and used for decades on all types of assembly throughout the world.