A4 stainless steel crush nuts, also known as rivet nuts, provide a strong and reliable threaded fixing solution where access is only available from one side of the material. Manufactured from A4 marine grade stainless steel, these fixings offer excellent resistance to corrosion, making them ideal for use in coastal, marine, outdoor and harsh industrial environments.

Crush nuts are designed to deform and clamp securely against the rear of thin materials such as sheet metal, aluminium, plastics and composites when installed. This creates a permanent internal thread, allowing bolts or machine screws to be fitted and removed repeatedly without damaging the base material. Their design makes them particularly useful where traditional tapping or welding is not possible.

Commonly used in engineering, automotive, marine fabrication, electrical enclosures, machinery panels and general metalwork, A4 stainless steel rivet nuts deliver dependable performance where strength and durability are critical. The corrosion-resistant properties of A4 stainless steel ensure long service life even in wet, high-humidity or chemically exposed environments.

Available in a range of styles and sizes, including flanged and countersunk options, stainless steel crush nuts provide flexibility for different application requirements. Trusted by professional tradespeople and engineers, they offer a secure, long-lasting fastening solution where reliable internal threads are required in thin or hollow materials.