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Large Coiled Tension Safety Pin
999-31 Large Reusable Cotter Pin
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Large Coiled Tension Safety Pin

Part Number: 999-31
Online Price: $0.99
999-31 Large Coiled Tension Safety Pin – Heavy-Duty Retainer for Spindles & Heim Joints
Availability: In Stock.

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Description

999-31 Large Coiled Tension Safety Pin – Quick-Lock Retainer for Spindles, Heims & Hardware


The 999-31 Large Coiled Tension Safety Pin is a durable and reusable safety retainer designed to securely lock hardware in place on spindle axles, heim joints, wheel hubs, and other high-vibration components. It offers a faster, more secure alternative to standard cotter pins, and a safer, more reliable option than hairpin cotter pins—especially when making frequent adjustments during racing or maintenance.


Its coiled tension design ensures consistent pressure and reduces the risk of accidental disengagement, making it ideal for race mowers, go-karts, and other performance applications where safety and speed matter.


Product Specs:

  • Usable Length: 0.75" (19.5mm)
  • Overall Length: 1.575" (40mm)
  • Wire Diameter: 0.0625" (1.6mm)
  • Material: Spring steel (coiled tension)
  • Finish: Zinc-coated for corrosion resistance
  • Sold Individually


Key Benefits:

  • Quick and secure hardware retention
  • Easier to install/remove than cotter pins
  • Safer alternative to hairpin-style pins
  • Ideal for spindle height and hub spacing changes
  • Reusable and durable under racing conditions

FAQ

What is the 999-31 Coiled Tension Pin used for?

It’s used to secure spindle axles, heims, wheel hubs, and other high-stress components on racing mowers, go-karts, or small vehicles where fast adjustments are needed.


How is this different from a standard cotter pin?

Unlike cotter pins, the coiled tension design allows for repeated use without bending, and provides more holding pressure than hairpin-style pins. It’s quicker to install and safer under racing conditions.


What is the usable length of the pin?

The usable locking length is 0.75" (19.5mm), and the overall length is 1.575" (40mm).


Is it sold as a set or individually?

The 999-31 pin is sold individually, so make sure to order the quantity you need for your setup.


Is this pin reusable?

Yes, it is designed to be durable and reusable, making it perfect for frequent suspension or wheel spacing adjustments.

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