Stainless steel hex screws are durable, corrosion-resistant fasteners with a six-sided head, designed for high-strength, secure fastening using wrenches or sockets. Made primarily from SS 304 or 316, they are ideal for outdoor, marine, and industrial applications. They feature external threads, provide excellent tensile strength, and are available in various sizes and, commonly, full threads.
Key Features and Description
- Material: Constructed from high-quality, anti-corrosive stainless steel (typically Grade 304/A2 for general, 316/A4 for marine).
- Head Design: A hexagonal-shaped head allows for high torque application and easy access with tools like wrenches, spanners, or sockets.
- Threading: Usually available as fully threaded (set screws) or partially threaded.
- Corrosion Resistance: The material resists rust and degradation, making it suitable for wet, outdoor, or chemical environments.
- Applications: Commonly used in construction, machinery, automobiles, plumbing, and furniture assembly.
- Standards: Often manufactured to DIN 933 or ISO standards, ensuring precision.
Differences & Types
- Hex Screw vs. Bolt: While often used interchangeably, hex screws are generally designed to be driven into a tapped hole, whereas bolts typically use a nut.
- Hex Cap Screws: Feature a washer face on the underside of the head for better bearing surface.
- Self-Drilling Hex Screws: Feature a drill bit point for creating their own hole, often used in metal framing.
- Sizes: Available in wide-ranging diameters (e.g., M3 to larger) and lengths, denoted with M marks for metric.