1/2 x 3 1/4 Tension Pin (Slotted Spring Pin) supports economical retention in hinges, pivots, and light mechanical joints. Use the three names together when cross-checking older maintenance notes, bills of material, or shop requests. A normal drilled hole at production tolerance is typically the economic advantage over precision reamed dowel-pin holes.
Common uses include cabinet mechanisms, access panels, and hinged service hardware, where the pin retains parts without a threaded fastener. When the design requires repeatable precision location, compare Heat Treated Steel Standard Dowel Pins with a reamed hole and ground pin.
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: 1/2 in.
- Length: 3 1/4 in. +/-0.030 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.
