Safety Retaining Pin, 55mm Grip Length, 3mm Wire Diameter, A2

87mm Safety Retaining Pin, 55mm Grip Length, 3mm Wire Diameter, A2 Stainless Steel – SPIN-55-3-A2

Our 87mm Safety Retaining Pin offers a dependable and durable fastening solution for securing components in high-stress applications. Manufactured from general-purpose A2 Stainless Steel, this pin features a 55mm grip length, 3mm wire diameter, and a total length of 87mm, making it suitable for most indoor and light outdoor applications. The integrated loop provides a quick-locking mechanism, allowing for safe and repeatable installation. This safety retaining pin is designed with a ring ID of 17mm, ensuring compatibility with a range of assemblies across construction, automotive, aerospace, and marine sectors.

What is a Safety Retaining Pin?

A safety retaining pin, also known as a spring cotter pin or Fokker pin, is a simple yet highly effective mechanical fastener used to hold two or more parts together. Its spring-loaded loop provides a secure hold that resists loosening due to vibration or movement. This A2 Stainless Steel version is designed for applications where reliability, reusability, and ease of installation are essential.

Key Applications and Industries

Safety retaining pins are used across many industries for securely fastening assemblies. In the UK, typical use cases include:

• Construction: Securing formwork, scaffold connections, and structural supports in temporary builds.
• Automotive: Used in tow bars, trailers, and engine assemblies where strong yet removable fastening is required.
• Marine: Ideal for securing deck equipment, rigging, and fittings (A4 stainless only).
• Aerospace and Engineering: Trusted in aviation and manufacturing for lightweight, secure fastening with repeatable use.

Why Choose Our Safety Retaining Pin?

Designed for professionals who demand both performance and reliability, our safety retaining pin delivers a range of key benefits. The use of A2 Stainless Steel provides reliable corrosion resistance for general construction, industrial, and commercial use. The spring cotter design allows for rapid deployment and removal, while maintaining a strong hold that resists vibration-related loosening. Its precision manufacturing guarantees consistent sizing and compatibility with a wide range of retaining applications.

This pin is a reliable and long-lasting solution for anyone needing a secure mechanical fastening in challenging UK working conditions. Whether you're a maintenance technician, construction worker, or equipment manufacturer, it offers an easy and cost-effective way to secure components safely.

Key Features and Benefits:

• Made from A2 Stainless Steel for application-specific durability
• Secure spring cotter design suitable for vibration-prone environments
• Quick and tool-free installation for repeatable use in maintenance or assembly settings

Technical Specifications:

• Overall Length: 87mm
• Grip Length: 55mm
• Wire Diameter: 3mm
• Material: A2 Stainless Steel
• Ring Inner Diameter: 17mm
• Product Code: SPIN-55-3-A2

Who Uses Safety Retaining Pins?

In the UK, safety retaining pins are typically purchased by professionals in the construction, marine, engineering, and automotive sectors. Buyers often include site managers, maintenance engineers, and fabricators looking for secure, removable fastening solutions. These pins are especially valued in industries where assemblies must withstand vibration, be quickly disassembled, or be regularly maintained.

Call Vital Parts Today

Need help choosing the right Safety Retaining Pin? Call Vital Parts today on 01233 713581 for free product advice and same-day dispatch. Business customers can also request free product samples to confirm sizing and fit, and benefit from exclusive trade pricing, credit terms, and priority delivery options. As a UK-based supplier of specialised components, our expert team is here to ensure you get the support and service you need—fast, reliable, and always professional.