5/16 x 13/16 Tension Pin (Slotted Spring Pin) is a spring steel slotted pin used where the pin must compress on entry and push back after seating. Use the three names together when cross-checking older maintenance notes, bills of material, or shop requests. The retaining action comes from spring force and friction at the hole wall, not from threads, adhesive, or staking.

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: 5/16 in.
• Length: 13/16 in. +/-0.015 in.
• Pin OD Before Insertion: 0.330 / 0.321 in. (max/min)
• Recommended Hole Size: 0.318 / 0.312 in. (max/min)
• Min Double Shear: 10,800 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.