1/8 x 1 1/8 Tension Pin (Slotted Spring Pin) is a headless spring pin for production or repair work that does not require precision dowel location. The slotted construction is the reason this same fastener is commonly indexed as a spring pin or roll pin. The retaining action comes from spring force and friction at the hole wall, not from threads, adhesive, or staking.

Common uses include cabinet mechanisms, access panels, and hinged service hardware, where the pin retains parts without a threaded fastener. If the joint must locate parts precisely rather than retain them economically, a dowel pin is usually the product family to check.

For repair operations, distributors, and OEM sourcing, Cold Headers can help match the item number, diameter, length, and standard. 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: 1/8 in.
• Length: 1 1/8 in. +/-0.020 in.
• Pin OD Before Insertion: 0.135 / 0.131 in. (max/min)
• Recommended Hole Size: 0.129 / 0.125 in. (max/min)
• Min Double Shear: 1,875 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.