5/32 x 1/2 Tension Pin (Slotted Spring Pin) gives a compact spring-steel fastening option for assemblies that need retention rather than ground-pin location. The catalog term is tension pin, while many drawings use slotted spring pin and many shops say roll pin. As the pin enters the hole, the slotted wall compresses and the spring steel reacts outward against the hole surface.

This size is often reviewed for replacement assemblies, legacy equipment, and maintenance repairs when a self-retaining driven pin is specified. For blind holes where removal access matters, Pull Dowel Pins are the related locating-pin option to review.

Cold Headers can assist when drawings, service records, and replacement needs call for an exact spring pin size. Review the verified OD, hole-size, shear, and length-tolerance data before matching this pin to a drawing or service record.

Technical Highlights

• Nominal Diameter: 5/32 in.
• Length: 1/2 in. +/-0.015 in.
• Pin OD Before Insertion: 0.167 / 0.162 in. (max/min)
• Recommended Hole Size: 0.160 / 0.156 in. (max/min)
• Min Double Shear: 2,750 lbs
• Material: Spring Steel (cold rolled, hardened and tempered)
• Ends: Chamfered both ends
• Style: Slotted (also called spring pin / roll pin)
• Dimensional Standard: ASME B18.8.2

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.