Stainless Steel 304 Phillips Pan Head Set Screw With Rubber O Ring IP67 Waterproof Corrosion Resistant High Precision Electronic Enclosure Fastener

Our hex socket set screws, also known as grub screws, are precision fasteners made of high-quality stainless steel. Featuring standard full thread design, neat and smooth thread teeth ensure tight locking and effortless installation without slipping. Available in flat point, cone point, cup point and ball point types to meet various positioning and fixing demands.

With excellent hardness, high tensile strength and stable performance, these set screws resist rust, corrosion and abrasion, suitable for long-term use in humid and harsh environments. They are widely applied in machinery, electronics, automobiles, instruments, molds and hardware fittings for shaft fixing, gear positioning and component limiting. Compact in structure, easy to conceal and install, they provide reliable anti-loosening positioning for all kinds of mechanical assembly.

Set screws also named grub screws have no protruding head and install fully concealed into components. Hex socket drive is the mainstream style, compatible with hex Allen keys, allowing high torque tightening for secure locking. Stainless steel 304 set screws deliver excellent rust and corrosion resistance for general industrial, outdoor and humid indoor applications.

Stainless steel 316 set screws feature superior chemical and saltwater resistance, ideal for marine, coastal and harsh corrosive environments. Carbon steel set screws with black oxide or zinc plating offer high hardness and cost‑effective performance. The surface finish provides basic anti‑rust protection for standard machinery and indoor assembly use.

Grade 4.8 for light duty general fastening. Grade 8.8 for medium strength mechanical positioning. Grade 12.9 for ultra‑high strength under heavy load and vibration conditions. Metric sizes M2 M2.5 M3 M4 M5 M6 M8. Standard lengths from 3mm to 50mm. Non‑standard thread diameters and lengths are available upon custom OEM request.