hex nut 1.material:mild steel,45# steel,40Cr 2.surface:zinc ... .8,8.8,10.9 yellow zinc plated hex nut, unc hex nut, hex nut grade 8.8, hex flange nut 1.material:mild steel,45# steel,40Cr ... .8,10.9,12.9 Satisfactory services:We can produce hex nuts as per your drawing and/samples.We can supply ...