Tension Pins
Tension pins are hollow spring fasteners designed to align, retain, secure, or position components in mechanical assemblies. Their spring action allows the pin to compress during installation and expand within the receiving hole to create a secure interference fit. Tension pins are widely used in machinery, power transmission equipment, agricultural equipment, automation systems, industrial tooling, pumps, motors, gearboxes, fixtures, maintenance repairs, and OEM manufacturing.
Commonly referred to within the fastener industry as spring pins or roll pins, tension pins are selected where dependable retention and ease of installation are important. They are frequently used to secure gears, hubs, collars, levers, cams, shafts, pulleys, handles, hinges, and other machine components without requiring threads or separate locking hardware. Proper selection should consider the pin diameter, overall length, hole size, mating material, installation method, and the functional requirements of the completed assembly.
Cold Headers supplies industrial tension pins in a broad range of inch sizes and lengths, including standard and difficult-to-source configurations. Individual product pages provide verified diameter, length, and other engineering dimensions where available to assist engineers and purchasing professionals with accurate product selection.
Why Choose Tension Pins?
- Spring construction: Compresses during installation and expands within the receiving hole.
- Interference fit: Designed to help retain and position mating components.
- Versatile applications: Used in machinery, automation, maintenance, tooling, and OEM assemblies.
- No threaded engagement required: Simplifies many mechanical fastening applications.
- Verified engineering dimensions: Product pages provide diameter, length, and additional dimensional information where available.
Selecting the Correct Tension Pin
Begin by confirming the required pin diameter and overall length. Review the receiving hole dimensions, mating materials, installation method, operating environment, and assembly requirements before selecting a pin. Final product selection should reflect the mechanical and functional requirements of the completed assembly.
Cold Headers Inc. has supplied specialty industrial fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes, uncommon lengths, and difficult-to-find tension pins without unsupported inventory claims.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
