Stainless Steel Screws Suppliers

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Susanna@fyhandware.com

Our self-drilling fasteners support drilling through steel sheets up to 2.25 mm in thickness. Constructed from AISI 410 ferritic-martensitic stainless steel, each screw is finished with a uniform passivated protective coating, effectively lowering corrosion risks in moist, water and steam-prone working scenarios.

Equipped with finely sharpened precision drill tips, the screws achieve smooth penetration for streamlined assembly work. They match standard PH2 Phillips bits for convenient daily mounting operations, cutting down overall installation time.

DIN7504K is a professional self-drilling fastener with integrated hex flange washer and drill tail tip. Different from ordinary self-tapping screws like DIN7981, it integrates drilling tapping and fastening in one step no pre drilled pilot hole required for thin steel sheet connection. The letter K stands for external hexagon head with one piece flange collar which evenly disperses pressure avoids material denting and improves sealing performance.

Different from half-thread bolts, full thread DIN933 hex bolts feature higher adaptability for thin plates, aluminum lamp housings and small fixed brackets. The external hexagon head can be quickly tightened by spanners and socket wrenches, bringing high construction efficiency for mass assembly work. 304 stainless steel type meets regular indoor and general outdoor usage with basic rust-proof performance, while marine grade 316 stainless steel owns outstanding salt spray resistance, perfectly suitable for coastal projects, pool equipment and long-term humid outdoor environments.

Our factory keeps abundant spot inventory of DIN933 hex bolts covering specifications M6 to M24 with dozens of standard lengths available for immediate delivery. Strict quality control including dimensional tolerance inspection, tensile test and salt spray test is carried out for every batch to guarantee stable mechanical strength. These bolts maintain firm locking effect under heavy load and long-time vibration, effectively avoiding loosening problems and reducing maintenance costs for manufacturers and engineering contractors.

GB818 cross recessed pan head machine screw is one of the commonly used standard fasteners for electronic, lighting and small machinery assembly. Manufactured fully complying with Chinese GB818 national standard, this screw adopts smooth round pan head and Phillips cross drive, which can be quickly installed and removed with ordinary cross screwdrivers without special tools. Our factory selects premium 304 stainless steel raw materials for production, equipped with precise thread rolling technology to form uniform, burr-free threads that match tapped holes tightly and avoid sliding during assembly.

The flat round pan head design of GB818 machine screws brings neat and flat assembly surfaces without sharp protrusions. After tightening, the head fits closely against product casings, which effectively prevents scratching wires, plastic shells and aluminum lamp covers. Unlike countersunk screws, pan head screws provide larger contact area and stronger locking force, suitable for fastening thin metal sheets, plastic lamp parts, electrical boxes and small equipment brackets. Stainless steel material provides lasting anti-rust performance for indoor and mild outdoor environments.

If you need hidden anti-corrosion fasteners for flat-surface assembly of lamps and electronic products, our GB819 stainless steel Phillips countersunk screws are your ideal option. The universal cross drive matches common assembly tools without extra special equipment. We provide free sample service for buyers to test dimensional accuracy, surface finish and locking performance before formal bulk orders. Our foreign trade team offers fast quotation, complete certification documents and diverse logistics solutions to establish long-term stable cooperative relations with hardware distributors, lighting factories and electronic manufacturers around the world.

ISO7380 hex socket button head screw is a widely used international standard fastener, also known as dome head Allen bolt. Different from DIN912 flat cup head screws, it features a smooth arc round head with built-in hex socket drive, matching standard hexagon wrenches for convenient disassembly and assembly. Our ISO7380 series are made of premium 304 and 316 stainless steel. Adopting precision thread rolling technology, all threads are uniform, burr-free and tightly matched to tapped holes without slipping during long-term locking.

The rounded button head is the biggest highlight of ISO7380 screws. After tightening, the smooth curved surface leaves no sharp edges, effectively preventing scratches on aluminum lamp frames, plastic casings, wires and decorative panels. It realizes semi-hidden installation, balancing good fastening strength and beautiful appearance. This design is especially popular for visible assembly positions of lighting and decorative equipment, making finished products more delicate compared with exposed external hex bolts. 304 stainless steel fits indoor and general outdoor use, while 316 marine grade material provides salt spray resistance for coastal humid environments.

We maintain complete inventory of ISO7380 stainless steel button head screws covering specifications M2 to M16, dozens of standard lengths are ready in warehouse to support fast delivery of bulk orders. Strict quality control is implemented for every batch, including dimensional tolerance inspection, tensile strength test and salt spray aging test. The internal hex structure can bear larger tightening torque, keeping stable fastening effect under continuous vibration load and avoiding loosening issues.

ISO7380 hex socket button head screws have broad industrial application ranges. In the lighting industry, they are the core fasteners for assembling LED aluminum lamp housings, landscape light brackets and decorative light frames. In automation manufacturing, they are widely used for aluminum profile frame connection and equipment shell assembly. Besides, they are extensively applied in new energy equipment, household appliances, communication instruments and furniture decorative hardware. Supporting flat and spring washers can be supplied as one-stop matching accessories.