1/2 x 1 1/2 Tension Pin (Slotted Spring Pin) uses spring action to hold itself in a prepared hole without an added head. In search and purchasing records, this part may be called a tension pin, slotted spring pin, or roll pin. For this diameter, the free OD is 0.513-0.524 in. against a recommended hole of 0.500-0.510 in., so the oversize is intentional.

In electronics assemblies, appliance hardware, and light mechanical frames, the headless form keeps the joint compact after installation. If the joint must locate parts precisely rather than retain them economically, a dowel pin is usually the product family to check.

Cold Headers can assist when drawings, service records, and replacement needs call for an exact spring pin size. 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: 1/2 in.
• Length: 1 1/2 in. +/-0.020 in.
• Pin OD Before Insertion: 0.524 / 0.513 in. (max/min)
• Recommended Hole Size: 0.510 / 0.500 in. (max/min)
• Min Double Shear: 27,100 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.