✅ High‑strength 12.9 grade alloy steel, black oxide finished for anti‑rust & wear‑resistance, great locking performance under heavy‑load working conditions.

✅ Precision thread, uniform pitch, no burrs, tight fit, effectively prevent loosening under vibration environment.

✅ Headless grub screw design, fully recessed after installation, no protruding part, ideal for shaft fixing & machinery assembly.

✅ Meet DIN916 standard, metric size M2‑M16 available, support OEM & ODM custom service for special requirements.

✅ Wide application: mechanical equipment, mold, instruments, automotive, electronics and other industrial fastening scenarios.

✅ Factory direct supply, stable quality, competitive wholesale price, flexible MOQ.