1/8 x 11/16 Tension Pin (Slotted Spring Pin) is a slotted roll pin selected when a normal drilled hole is preferred over a reamed dowel-pin hole. Tension pin, slotted spring pin, and roll pin describe the same slotted self-retaining pin style. As the pin enters the hole, the slotted wall compresses and the spring steel reacts outward against the hole surface.

For maintenance spare kits, repair benches, or field replacement work, check the drilled-hole range, pin length, and access for driving the pin squarely. 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: 11/16 in. +/-0.015 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.