S-94414A722 M4 x 8 mm ASME B18.3.5M Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior torque transfer with the Torx Plus IP20 drive minimizes cam-out and tool wear, enabling precise and efficient installation.
• Enhanced corrosion resistance from the black-oxide coating prolongs service life in harsh industrial environments.
• High hardness rating of Rockwell C38 provides excellent wear resistance and durability under repetitive loads.
• Precision Class 4g6g thread fit ensures consistent engagement and secure fastening in metric assemblies.
• Fully threaded design offers maximum grip and holding power along the entire 8mm length.
• Compliance with ASME B18.3.5M and environmental standards guarantees quality, safety, and regulatory adherence for global projects.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these M4 flat head screws in black-oxide alloy steel address critical challenges like vibration loosening and corrosion. The Torx Plus drive (IP20/T20) delivers superior torque transmission, preventing slippage during high-torque applications in machinery, automotive, and aerospace assemblies. With a Class 12.9 strength grade and coarse metric thread (0.7mm pitch), they provide robust clamping force in high-stress joints, reducing maintenance needs. The flat head profile and 90° countersink enable flush mounting, ideal for space-constrained designs requiring smooth surfaces and reliable performance under dynamic loads.

Specification Summary & Compliance

This screw features an M4 x 0.7mm metric coarse thread with a Class 4g6g thread fit for precise dimensional accuracy. It meets ASME B18.3.5M manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.