3/16 x 1/4 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. The pin OD is intentionally larger than the recommended hole before insertion, and the slot gives the diameter somewhere to close during driving.

In sheet metal stacks, alignment-plus-retention work, and panel assemblies, the headless form keeps the joint compact after installation. For worn precision holes, 0.001 Oversize Dowel Pins may be the better repair path than using a spring pin.

Cold Headers supports hard-to-find pin sourcing, including uncommon lengths and exact diameter-length combinations. 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: 3/16 in.
• Length: 1/4 in. +/-0.015 in.
• Pin OD Before Insertion: 0.199 / 0.194 in. (max/min)
• Recommended Hole Size: 0.192 / 0.187 in. (max/min)
• Min Double Shear: 4,150 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.