S-95440A103 M3 x 8 mm ASTM A276 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel material, ideal for harsh environments including marine and chemical processing applications.
• Enhanced durability and strength with a Rockwell B70 hardness rating and 70,000 psi tensile strength, ensuring reliable performance under high stress.
• Secure and flush installation due to the 100° countersink angle and undercut flat head profile, providing a smooth surface finish and reduced risk of snagging.
• Precise and easy drive engagement with a 2 mm hex drive, allowing for efficient installation and removal with standard tools.
• Consistent thread performance with a fully threaded M3 x 0.5 mm coarse thread and Class 6g fit, ensuring tight, secure fastening in various materials.
• Reliable environmental compliance meeting RoHS 3 and REACH standards, making these screws safe for use in regulated industries and global markets.
• Durable protective finish with black oxide coating, offering additional corrosion resistance and a professional appearance.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these M3 flat head screws in 316 Stainless Steel provide exceptional resistance to corrosion and oxidation, making them ideal for applications in marine equipment, chemical plants, and food processing machinery. The black oxide finish enhances surface protection, while the fully threaded design with a coarse thread pitch ensures quick and secure fastening in soft materials or pre-tapped holes. The undercut flat head and 100° countersink angle allow for a flush fit, minimizing protrusion and improving safety in moving parts. With a Class 6g thread fit, these screws deliver consistent clamping force, reducing the risk of loosening in high-vibration environments like automotive assemblies or electronic enclosures, thereby extending equipment lifespan and reducing maintenance costs.

Specification Summary & Compliance

This screw features precise dimensional tolerances, including a head diameter tolerance of -0.127 to 0.127 mm and a Class 6g thread fit per metric standards, ensuring reliable performance in assembly. It complies with ASTM A276 for material specifications, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial applications.