S-90605A338 M12 x 30 mm DIN 912, ISO 4762 Left-Hand Threaded Alloy Steel Socket Head Screws
Left-Hand Threaded Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional strength and durability with Class 12.9 rating and 170,000 psi tensile strength, ensuring reliable performance in high-stress applications.
- Superior corrosion resistance thanks to the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
- Precise left-hand threading for specialized assemblies requiring reverse-thread security, preventing loosening under counter-clockwise forces.
- High dimensional accuracy with Class 5g6g thread fit and coarse 1.75mm pitch, enabling quick installation and secure fastening.
- Optimized drive engagement via a standard 10mm hex socket, providing high torque transmission and reduced risk of stripping.
- Full thread coverage along the 30mm length, offering maximum grip and adjustability in a wide range of material thicknesses.
- Compliance with international standards including DIN 912/ISO 4762, ensuring interchangeability and quality assurance in global projects.
Professional Applications & Engineering Value
This left-hand socket head cap screw is engineered to address critical challenges in machinery, automotive, and heavy equipment where reverse rotation or vibration resistance is essential. The black-oxide alloy steel construction combats rust and wear, making it ideal for humid or corrosive settings. With a Class 12.9 strength rating and Rockwell C37 hardness, it maintains integrity under extreme loads, reducing failure risks in dynamic assemblies. The coarse metric thread (M12 x 1.75mm) and fully threaded design allow for rapid installation and robust clamping force, streamlining maintenance in industrial fastening systems while adhering to precise DIN 912/ISO 4762 specifications.
Specification Summary & Compliance
This screw features a Class 5g6g thread fit per ISO metric standards, ensuring tight tolerances for secure mating. It conforms to DIN 912/ISO 4762 for dimensional consistency and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
