A2 Stainless Steel Screws

About A2 Stainless Steel Screws

A2 stainless steel screws offer superior corrosion resistance compared to zinc-plated alternatives, making them the correct choice for external window installation, coastal environments and applications where screws will be permanently exposed to weather.

Glazing Supplies Direct stocks A2 stainless steel screws in the most common sizes for window and door installation. CE approved and supplied in trade packs. Suitable for uPVC, aluminium and timber frame applications.

Frequently Asked Questions

What is the difference between A2 and A4 stainless steel screws?

A2 stainless (304 grade) is suitable for most external and marine applications. A4 stainless (316 grade) provides additional resistance to chloride corrosion and is specified for coastal locations or environments with chemical exposure.

Can A2 screws be used for all window installation applications?

A2 screws are suitable for most window and door installation applications. For highly corrosive environments such as seafront properties or industrial sites, A4 grade screws should be considered.