50PCS M3 M4 M5 Knurl High Step Head Hand Tighten Thumb Screw Thumbscrew Adjust
M3 M4 M5 M6 Knurl High Step Head Hand Tighten Thumb Screw Curtain Wall Glass Lock Thumbscrew Adjust DIN464 GB834. 3mm(M3) / 4mm(M4) / 5mm(M5) / 6mm(M6) / 8mm(M8) / 10mm(M10). 0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1.0mm(M6) / 1.25mm(M8)/1.5mm(M10).
50PCS M3 M4 M5 Knurl High Step Head Hand Tighten Thumb Screw Thumbscrew Adjust
M3 M4 M5 M6 Knurl High Step Head Hand Tighten Thumb Screw Curtain Wall Glass Lock Thumbscrew Adjust DIN464 GB834.