This is a No.8 x 5/8" Pozidriv pan-head self-drilling screw manufactured in A2 (304) stainless steel to DIN 7504 A. It is designed to drill and thread thin-gauge metal and similar substrates without the need for a separate pilot hole, making it suitable for rapid metal-to-metal fastening where a neat, raised head finish is required.

The screw is supplied in A2 (AISI 304) stainless steel with a natural bright finish, offering the corrosion resistance typical of 300-series stainless in atmospheric and indoor environments. The nominal size is No.8 (approximately 4.2 mm diameter) with a length of 5/8" (≈16 mm). The fastener features a pan head form to DIN 7504 A and a Pozidriv drive recess compatible with standard PZ bits, providing positive bit engagement and reduced cam‑out. It is fully threaded below the head and fitted with a self‑drilling point to cut its own hole in thin sheet steels and many non-ferrous substrates.

Typical applications include fixing light-gauge steel cladding, HVAC ductwork, electrical enclosures, cable tray fittings, signage, and metal framework where a secure, repeatable metal-to-metal connection is required without pre-drilling. Industries that commonly use this type of fastener are construction and building services, sheet metal fabrication, maintenance and repair operations, and light engineering.

Key benefits of this A2 Pozidriv pan self-drill include reliable corrosion resistance in non-marine atmospheres, the time-saving advantage of a self-drilling point, and good bearing contact from the pan head which helps distribute load on the material surface. Using A2 material ensures compatibility with other stainless components to minimise galvanic corrosion risk in most environments; for prolonged exposure to chloride-rich or coastal conditions, A4 (316) stainless would be preferred.

Duchy Fasteners carries this item (A2PRSD400016) in the No.8 x 5/8" specification and offers a wider range of stainless self-drilling screws in different lengths, diameters and pack sizes. Contact us for available pack quantities and alternate sizes to suit your project.