
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.