5/64 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 0.083-0.086 in. free OD and the smaller 0.078-0.081 in. hole.

This size is often reviewed for latch mechanisms, lock hardware, and service doors when a self-retaining driven pin is specified. Where stainless material and precision location are both required, 18-8 Stainless Steel Standard Dowel Pins may fit the drawing better.

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: 5/64 in.
• Length: 3 1/2 in. +/-0.030 in.
• Pin OD Before Insertion: 0.086 / 0.083 in. (max/min)
• Recommended Hole Size: 0.081 / 0.078 in. (max/min)
• Min Double Shear: 800 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.