Thread - UNC (Imperial Coarse). Type - Full Nuts. Finish - none plated steel. Sizes listed are thread size. 1/4 7/16 20. 5/16 1/2 18. 3/8 9/16 16.
1/4" UNC CAP SCREWS ALLEN KEY SOCKET BOLTS SELF COLOUR BLACK HIGH TENSILE STEEL
1/4" 5/16" 3/8" 7/16" 1/2" UNC Hexagon Screws Bolts High Tensile Steel Grade 8.8
UNC GRADE 8 HIGH TENSILE STEEL ZINC SOCKET ALLEN COUNTERSUNK BOLTS 3/16 1/4 5/16
1/4" 5/16" 3/8" 7/16" 1/2" UNC UNF Hexagon Screws Bolts High Tensile Steel 8.8
1/2" UNC High Tensile Zinc 8.8 Grade 5 Full & Part Threaded Hex Head Bolts
3/8" UNF BOLTS HIGH TENSILE STEEL SELF COLOUR BLACK HEXAGON PART THREADED SCREWS
