1/8 x 1 3/8 Tension Pin (Slotted Spring Pin) is a hollow, headless spring pin with a slot running along its length. In search and purchasing records, this part may be called a tension pin, slotted spring pin, or roll pin. Compared with a dowel-pin fit, the tension pin is usually chosen when economical retention matters more than tenths-level location.

For machine handles, knob shafts, or operator controls, check the drilled-hole range, pin length, and access for driving the pin squarely. When the design requires repeatable precision location, compare Heat Treated Steel Standard Dowel Pins with a reamed hole and ground pin.

Since 1962, Cold Headers has helped industrial buyers locate specialty pin and socket-product configurations. 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 3/8 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.