Shoulder Socket Cap Screw

Shoulder Socket Cap Screws are high strength fasteners with an Internal Hex or Allen drive style head. The shoulder is a cylindrical unthreaded area before the thread, allowing for rotation of parts and are used in moving parts and other mechanical applications.


  • Metric: Dia M5 - M20 & Lengths 10mm - 150mm
  • Imperial: Dia #10-24 - 5/8" & Lengths 1/4" - 6"
  • Threads: Metric Coarse & Imperial BSW, UNC
  • Strength: Property Class 12.9 & 38-43 HRC & A2-70
  • Material/Finish: Plain & Stainless Steel
  • Compliance: ISO 7379, ANSI B18.3, BS 2470