Request Information

1/8 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 0.131-0.135 in. against a recommended hole of 0.125-0.129 in., so the oversize is intentional.

In replacement assemblies, legacy equipment, and maintenance repairs, the headless form keeps the joint compact after installation. When the design requires repeatable precision location, compare Heat Treated Steel Standard Dowel Pins with a reamed hole and ground pin.

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: 1/8 in.
  • Length: 1 1/2 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.

Unit of Measure

Specifications

Brands

 N/A Cold Headers, Inc.

Diameter

 N/A 1/8 in

Length

 N/A 1 1/2 in

Quantity

 N/A 1000

Package Type

 N/A Bulk

Weight

 N/A 3.54 lb

Search

 N/A TP.1/8.1 1/2

Addtional Information

Addtional Information

 N/A They are self fitting in varying size holes and in out of alignment applications.