Allen Key Button Head Machine Screws A4 Stainless Steel | Duchy Fasteners

These high-performance socket button screws are engineered for strength, reliability, and a clean, low-profile finish. Manufactured from A4 (316) stainless steel, they offer outstanding corrosion resistance, making them ideal for marine, construction, engineering, and general industrial applications where long-term durability is critical.

Designed in accordance with ISO 7380 standards, each fastener features a smooth domed head and hexagonal socket drive, providing a secure, high-torque fastening solution while maintaining an aesthetically pleasing appearance. The rounded head design reduces snagging and provides a neat, professional look, perfect for visible assemblies, machinery, fabrications, and structural components.

Thanks to the superior properties of 316 stainless steel, these socket button screws resist rust, staining, and chemical attack, even in harsh outdoor, coastal, and high-moisture environments. This makes them a dependable choice for demanding projects where conventional steel fasteners would quickly deteriorate.

A4 (316) stainless steel for excellent corrosion and chemical resistance
Socket button head for a low-profile, attractive finish
Hexagon socket drive for positive engagement and easy installation
Manufactured to ISO 7380 for consistent quality and performance
Suitable for marine, industrial, construction, and outdoor use

Whether you are assembling equipment, fabricating metalwork, or carrying out repairs in challenging environments, these stainless steel socket button screws provide a robust, long-lasting fastening solution that combines high mechanical strength with smart, professional appearance.