STANDARDS
Standards, and Grades
Socket Screw Standards & Grades
Our socket screws are manufactured in accordance with internationally recognized standards including
DIN, ISO, ASME, ASTM, and SAE, ensuring superior strength, precision, and reliability for industrial applications.
Metric Socket Screw Grades:
Class 10.9: High-strength socket screws for industrial and mechanical applications.
Class 12.9: Ultra high-strength alloy steel socket screws for heavy-duty and precision engineering.
Class 45H: Hardened socket set screws designed for maximum holding power and wear resistance.
ASTM Socket Screw Standards:
ASTM A574: High-strength alloy steel socket head cap screws.
ASTM F835: Socket button head and countersunk socket screws.
ASTM F912: Hardened alloy steel socket set screws.
Stainless Steel Socket Screw Grades:
A2-70: General-purpose stainless steel socket screws with excellent corrosion resistance.
A2-80: Higher-strength stainless steel socket screws for demanding applications.
A4-70 & A4-80: Marine-grade stainless steel socket screws offering superior corrosion resistance in harsh environments.
Raw Material Wire Rod Grades
Alloy Steel for Socket Screws:
SCM435 (JIS): Premium alloy steel widely used for Class 12.9 Socket Head Cap Screws.
40Cr: High-strength alloy steel for heavy-duty industrial socket screws.
10B21: Boron alloy steel offering excellent hardness and wear resistance after heat treatment.
10B33: High-performance boron steel designed for high-strength socket screw applications.
