3/32 x 3 1/2 Tension Pin (Slotted Spring Pin) is built around the slotted spring-pin principle: free diameter larger than the recommended hole. The slotted construction is the reason this same fastener is commonly indexed as a spring pin or roll pin. The slot accommodates the difference between the 0.099-0.103 in. free OD and the smaller 0.094-0.097 in. hole.

In small gear hubs, pulley spacers, and drive accessories, the headless form keeps the joint compact after installation. For wet outdoor exposure, keep plain spring steel oiled and indoors or ask Cold Headers about stainless spring pins as a non-catalog item.

Cold Headers brings long-running industrial fastener experience to tension-pin quoting, cross-checking, and size confirmation. 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: 3/32 in.
• Length: 3 1/2 in. +/-0.030 in.
• Pin OD Before Insertion: 0.103 / 0.099 in. (max/min)
• Recommended Hole Size: 0.097 / 0.094 in. (max/min)
• Min Double Shear: 1,150 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.