S-90605A254 M8 x 25 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 tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide coating prolongs service life in harsh industrial environments.
- High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity over repeated use.
- Left-hand thread design offers secure fastening in applications where right-hand rotation could cause loosening.
- Precise Class 5g6g thread fit guarantees consistent engagement and reduces the likelihood of cross-threading during assembly.
- Standard hex drive (6mm) allows for easy installation and removal with common tools, improving workflow efficiency.
- Compliance with DIN 912/ISO 4762 standards ensures dimensional accuracy and interoperability with metric components.
Professional Applications & Engineering Value
Engineered for demanding environments, these Class 12.9 alloy steel socket head cap screws deliver unmatched reliability in machinery, automotive, and heavy equipment assemblies. The left-hand metric thread (M8x1.25mm coarse pitch) is ideal for counter-rotational applications, preventing unintended loosening from vibration. The black-oxide surface treatment enhances corrosion resistance without compromising the high tensile strength, making these fasteners suitable for outdoor or chemically exposed settings. With a fully threaded design and standard hex drive, they ensure uniform clamping force and simplify maintenance, reducing downtime in industrial operations.
Specification Summary & Compliance
This product adheres to DIN 912 / ISO 4762 specifications, ensuring precise dimensions including a Class 5g6g thread fit for consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.
