Metric Hexagon Set Screws Din 933 (Fully Threaded) Grade A2 Stainless Steel

Unbeatable Corrosion Resistance

When you are building outdoor structures, repairing vehicles, or assembling equipment in damp environments, standard steel bolts will quickly succumb to rust. This not only weakens the joint but leaves unsightly orange stains on your timber or metalwork. These setscrews are manufactured from Grade A2 (also known as 304) Stainless Steel. This premium alloy offers a formidable defence against oxidation. Whether exposed to rain, condensation, or general atmospheric moisture, these fasteners will remain clean, strong, and visually appealing for years to come.

The Advantage of the "Set Screw" Design

In fastener terminology, a "set screw" (under the DIN 933 standard) refers to a hexagon-headed bolt that is fully threaded from the tip right up to the underside of the head. This design offers distinct advantages over partially threaded bolts (DIN 931). Because there is no unthreaded shank, you don't have to worry about a nut "bottoming out" before the joint is tight. This makes them incredibly versatile for clamping thin plates, fastening into pre-tapped blind holes, or adapting to unpredictable material thicknesses on site without needing to carry multiple bolt lengths.

Reliable, High-Torque Fastening

The traditional hexagon head remains an industry standard for a reason. Unlike slotted or cross-head drives that can "cam out" or strip under heavy pressure, the six flat sides of a hex head provide a massive surface area for your tools to grip. This allows you to apply high torque using a spanner, ratchet, or impact driver, ensuring a secure, vibration-resistant clamp. When paired with a matching A2 stainless steel nut and washer, you create a heavy-duty, weather-proof fastening system you can rely on.