Due to their thick zinc coating galvanised fasteners should not be used with non-galvanised fasteners, ie; non-galvanised nuts are not compatible with galvanised bolts. Hot dipped galvanised finish for corrosion resistance.
UNC HEXAGON SET SCREWS FULLY THREADED BOLTS ZINC PLATED 1/4 5/16 3/8 7/16 1/2"
M4 M5 M6 Hexagon Set Screws With Nyloc Nuts and Washers A2 Stainless Steel Bolts
HEXAGON SET SCREWS FULLY THREADED BOLTS 8.8 HIGH TENSILE ZINC PLATED M4 M5 M6 M8
M6 6mm HEXAGON SET SCREWS FULLY & PART THREADED BOLTS HIGH TENSILE 12.9 BLACK
Stainless Steel Bolt Hex Bolts Hexagon Set Screws A2 M4
M6 M8 M10 HEXAGON SET SCREWS FULLY THREADED BOLT HIGH TENSILE 8.8 SELF COLOUR