S-95440A109 M4 x 12 mm ASTM A276 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments
• Enhanced durability and wear resistance from the black oxide finish and Rockwell B70 hardness
• Reliable high-strength performance with 70,000 psi tensile strength for demanding applications
• Precise and secure fastening ensured by Class 6g thread fit and coarse 0.7mm pitch
• Efficient installation and flush mounting with hex drive and 100° undercut flat head design
• Full thread engagement along the 12mm length for maximum holding power
• Compliance with international standards including ASTM A276, RoHS 3, and REACH for quality assurance

Professional Applications & Engineering Value

This M4 metric screw in 316 stainless steel with a black oxide finish is engineered to address critical challenges in industrial settings, such as corrosion from chemicals, moisture, and high-stress conditions. The flat head with undercut profile and hex drive allows for countersunk, flush installations in machinery, automotive assemblies, and electronic enclosures, preventing protrusion and improving safety. Its coarse thread pitch and Class 6g thread fit provide quick, vibration-resistant fastening, reducing assembly time and maintenance needs. Ideal for applications requiring high tensile strength and long-term reliability, these screws are a trusted solution for OEMs and maintenance teams in harsh environments.

Specification Summary & Compliance

This product features precise dimensional tolerances, including a head diameter of 8 mm with a tolerance of -0.127 to 0.127 mm, and adheres to metric thread standards with M4 x 0.7mm coarse spacing and Class 6g thread fit. It is manufactured in compliance with ASTM A276 for material consistency and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.