S-90605A004 M4 x 10 mm DIN 912, ISO 4762 Left-Hand Threaded Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Class 12.9 rating and 170,000 psi tensile strength, ensuring reliable performance under high stress.
• Superior corrosion resistance and wear protection from the black-oxide finish, extending service life in harsh industrial environments.
• Precise, secure fastening with minimal play due to the Class 5g6g thread fit, reducing the risk of loosening in critical assemblies.
• High durability and material integrity from Rockwell C37 hardness, providing excellent resistance to deformation and wear.
• Left-hand thread design for specialized applications, offering secure fastening where standard right-hand threads may loosen under counter-clockwise rotation.
• Easy installation and removal with a standard 3 mm hex drive socket head, allowing for efficient assembly with common tools.
• Global compliance and reliability meeting DIN 912/ISO 4762 standards, RoHS 3, and REACH regulations for safe, consistent quality.

Professional Applications & Engineering Value

This M4 left-hand socket head cap screw is engineered to solve critical challenges in high-vibration and high-torque environments. The Class 12.9 alloy steel construction, combined with a black-oxide surface treatment, provides superior resistance to corrosion and mechanical stress, making it ideal for machinery, automotive, and aerospace assemblies where reliability is paramount. The left-hand metric thread is specifically designed for applications where reverse rotation could cause standard fasteners to loosen, such as in rotating shafts or specialized equipment. With a coarse thread pitch of 0.7mm and fully threaded design, it ensures quick installation and robust holding power, reducing maintenance needs and enhancing operational safety in demanding industrial settings.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards with a Class 5g6g thread fit per metric specifications, ensuring accurate engagement and consistent performance. It is manufactured in compliance with DIN 912 and ISO 4762 standards for socket head cap screws, guaranteeing interchangeability and reliability. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free from hazardous substances and safe for use in various industries.