Socket Head Cap Screws — Metric & Inch (Allen / Hex Drive)

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.mb-simple h1, .mb-simple h2, .mb-simple h3 { color:#00429a; } .mb-simple { font-family:Arial, sans-serif; color:#333; line-height:1.6; } .mb-simple ul { margin-left:1.2rem; } .mb-simple a { color:#0066cc; text-decoration:none; } .mb-simple a:hover { text-decoration:underline; } /* Optional: hide stubborn truncation dots */ .mb-simple .read-more__dots, .mb-simple .rte__dots, .mb-simple .truncation-dots { display:none !important; } Socket head cap screws (SHCS) deliver the highest clamping strength among socket-type fasteners. Their deep hex drive allows for high torque in tight spaces while maintaining a clean, low-profile head design. Available Standards Metric: DIN 912 / ISO 4762 Inch (US): ASME B18.3 Material Options 12.9 Alloy Steel: Black oxide or zinc-plated finish for maximum strength. A2 (18-8) Stainless Steel: Excellent corrosion resistance for general outdoor use. A4 (316) Marine Grade Stainless Steel: Superior saltwater and chemical resistance. Metric Socket Head Cap Screws Shop Metric Socket Caps → Ideal for jigs, machinery, automation, and robotics. See our Metric Socket Torque Chart for tightening specs. Inch / US Socket Head Cap Screws Shop Inch Socket Caps → ASME B18.3 compliant for accurate fit and torque. Common in tooling, precision equipment, and assemblies with tight clearances. Other Socket Styles Button Head Socket Screws – rounded, snag-resistant profile. Flat Head Socket Screws – flush when countersunk. Low Head Socket Caps – space-saving strength. FAQs How are socket head cap screws measured? By diameter × length (under-head) and thread pitch (metric) or TPI (inch). Which material should I choose? Use 12.9 alloy for dry, high-strength applications; A2 (18-8) stainless for general corrosion resistance; and A4 (316) for marine or chemical exposure. Need Help? Contact support@MonsterBolts.com or call (850) 764-2658 for quick help choosing the right spec.