Midwest Fasteners Plain Steel Coiled Spring-Tension Roll Pin

Midwest Fasteners Plain Steel Coiled Spring-Tension Roll Pin

The Midwest Fasteners Plain Steel Coiled Spring-Tension Roll Pin is a spring-style tension pin machined from steel with a plain finish, available across 11 total size options spanning 3/8", 7/16", and 1/2" diameters with lengths from 1-1/2" through 3". Each pin is designed to be driven into a drilled hole slightly smaller than its outside diameter, where the coiled, split-tube construction compresses to create a secure friction fit that locks components together without additional hardware. Built to standard dimensions, these pins are sold individually (Each) and are suited to reliable replacement or repair work on equipment, tooling and machinery.

Key Features

• Size Range: Available in 3/8", 7/16", and 1/2" diameters with lengths spanning 1-1/2" through 3" across 11 total size options, so you can match the exact bore and fit required for your application.
• Material & Finish: Steel construction with a plain finish, providing a straightforward, uncoated surface for general-purpose use.
• Type: Roll pin (tension pin) style, relying on spring tension from its rolled, split-tube design to stay seated in the bore.
• Hardware-Free Locking: The coiled, split-tube body compresses on insertion, creating a dependable friction fit without nuts, washers, or adhesives.
• Package: Sold as an individual pin (Each), letting you order exactly the size and quantity needed for a job.
• Consistent Dimensions: Each size is held to standard dimensions, so a given diameter and length fits matching drilled bores repeatably across replacement parts.

Technical Specifications

• Product Type: Roll Pin
• Product Finish: Plain
• Product Material: Steel
• Available Sizes: 3/8" x 1-1/2", 3/8" x 1-3/4", 3/8" x 2", 7/16" x 1-1/2", 7/16" x 2", 7/16" x 2-1/2", 7/16" x 3", 1/2" x 1-1/2", 1/2" x 2", 1/2" x 2-1/2", 1/2" x 3"

Typical Applications

• Securing pulleys, gears and levers to shafts in machinery and equipment repair.
• Retaining pivot points and linkages on tools, fixtures and small mechanical assemblies.
• General maintenance replacement where an existing roll pin or tension pin has sheared or worn.
• Fabrication and shop work requiring a quick, hardware-free locking pin connection.

Why Midwest Fasteners?

Midwest Fasteners supplies steel tension pins built to consistent dimensions and a dependable plain finish across the full size range, giving maintenance techs and fabricators a part they can count on for repeatable fits across repair and assembly jobs. Holding steel material and plain finish consistent from pin to pin, across every diameter and length offered, helps ensure a proper spring-fit every time it's installed.