DIN915 Hex Socket Dog Point Set Screws 12.9 Grade Headless Grub Screws Anti-Slip Convex Point Fasteners M5 M6 20/100Pcs Pack

Manufactured conforming to DIN915 standard, adopted 12.9 grade high-strength steel after integral heat treatment, high hardness and strong wear resistance for heavy-duty positioning locking.Headless grub screw design with dog convex point, the tip can sink into prefabricated positioning holes, lock shafts and stop relative rotation between mechanical parts.Internal hex socket structure, compatible with standard Allen keys, supports large torque tightening, convenient for installation and disassembly in narrow confined spaces.Uniform precision external threads with smooth tooth profile, tightly meshed with threaded holes, effectively resist loosening under long-term continuous vibration.M5 and M6 common industrial specifications, available in 20Pcs / 100Pcs packaging, widely used for shaft positioning, mold assembly, fixture and mechanical equipment fastening.All data above are manual measurements of one batch; slight deviations may exist. Kindly consider carefully before purchasing. Unit: mm.