S-90605A127 M5 x 16 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 from Class 12.9 alloy steel ensures reliable performance in high-stress and heavy-duty applications.
- Superior corrosion resistance with black-oxide coating prolongs service life in harsh or outdoor industrial environments.
- Precise left-hand threading provides secure fastening in specialized assemblies where reverse threading is required to prevent loosening.
- High hardness rating (Rockwell C37) offers excellent wear resistance and durability under repetitive or high-load conditions.
- Standard 4mm hex drive allows for easy installation and removal with common tools, reducing assembly time and effort.
- Full compliance with DIN 912/ISO 4762 guarantees dimensional accuracy and interchangeability in metric fastener systems.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global industrial use.
Professional Applications & Engineering Value
This M5 left-hand thread socket head cap screw is engineered to address critical challenges in machinery, automotive, and precision equipment where standard right-hand threads may loosen under counter-clockwise rotation or vibration. The Class 12.9 alloy steel construction provides exceptional tensile strength and fatigue resistance, making it ideal for high-stress connections in motors, conveyors, or clamping systems. The black-oxide surface treatment enhances corrosion protection without significantly altering dimensions, ensuring reliable performance in humid or chemically exposed settings. Combined with a coarse thread pitch and Class 5g6g thread fit, it offers quick assembly and secure holding power, reducing maintenance needs and downtime in industrial operations.
Specification Summary & Compliance
This screw adheres to precise metric dimensions: M5x0.8mm coarse thread, 16mm length, 8.5mm head diameter, and 5mm head height. Threading conforms to Class 5g6g tolerance per ISO standards, ensuring consistent fit. Manufactured to DIN 912 / ISO 4762 specifications for socket head cap screws, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free of restricted hazardous substances and safe for industrial use.
