S-92137A303 M4 x 8 mm ISO 7380-2 Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability and corrosion resistance due to the black-oxide coating on alloy steel, ideal for harsh industrial environments.
• High tensile strength of 100,000 psi and Class 10.9 rating ensure reliable performance under heavy loads and vibrations.
• Easy installation and removal with the 2.5 mm hex drive, providing a secure grip and reducing tool slippage.
• Enhanced load distribution and stability from the integrated 9.4 mm flange, minimizing surface damage and loosening.
• Precise and secure fastening with M4 coarse threads and Class 6g fit, ensuring consistent engagement in various materials.
• Compact, low-profile rounded button head design offers a flush finish in tight spaces without compromising strength.
• Full compliance with ISO 7380-2, RoHS 3, and REACH standards guarantees safety, quality, and environmental responsibility.

Professional Applications & Engineering Value

This M4 x 0.7 mm Class 10.9 black-oxide alloy steel flanged hex button head screw is engineered to address common industrial challenges such as vibration-induced loosening, corrosion in demanding settings, and the need for high-strength, compact fasteners. The fully threaded design with coarse metric threads ensures rapid assembly and robust holding power in metals and plastics, while the flanged head distributes clamping force evenly, reducing the risk of damage to sensitive components. With a Rockwell C32 hardness and 100,000 psi tensile strength, it excels in machinery, automotive, and electronics applications where reliability and space efficiency are critical. The black-oxide surface treatment adds a protective layer against rust, extending service life in humid or abrasive conditions without the need for additional coatings.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including M4 thread size with a 0.7 mm pitch and Class 6g thread fit for consistent accuracy. It meets ISO 7380-2 specifications for flanged hex button head screws, ensuring interchangeability and performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industries without hazardous substances.