S-97760A933 M12 x 35 mm ASME B18.2.3.1M, ISO 898-1 Left-Hand Threaded Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Left-Hand Threaded Medium-Strength Metric Class 8.8 Steel Hex 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
- Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
- High-strength performance with Class 8.8 rating and 110,000 psi tensile strength for demanding applications
- Secure left-hand threading prevents loosening in rotating machinery and specialized equipment applications
- Precise metric coarse threading (M12 x 1.75mm) ensures reliable engagement and installation efficiency
- Full threading design provides maximum grip length and uniform stress distribution
- External hex drive compatibility with standard 19mm wrench for easy installation and removal
- Certified quality assurance meeting ASME B18.2.3.1M and ISO 898-1 standards for consistent performance
Professional Applications & Engineering Value
Engineered for demanding industrial scenarios where standard right-hand fasteners would naturally loosen under rotational forces, these left-hand metric screws provide critical reverse-thread security in machinery, conveyor systems, and specialized equipment. The Class 8.8 steel construction delivers reliable tensile strength (110,000 psi) while the zinc-plated finish offers essential corrosion protection in manufacturing environments. With M12 coarse threading (1.75mm pitch) and Class 6h thread fit, these fully threaded hex head screws ensure precise engagement and uniform load distribution, making them ideal for high-vibration applications requiring left-hand fastening solutions that maintain integrity under stress.
Specification Summary & Compliance
This metric hex head screw features precise M12 x 1.75mm coarse threading with Class 6h thread tolerance for consistent fit and performance. Manufactured to meet ASME B18.2.3.1M dimensional specifications and ISO 898-1 mechanical property requirements for Class 8.8 steel fasteners. The zinc-plated finish provides corrosion resistance while maintaining Rockwell C21 hardness for durable performance in industrial applications requiring reliable left-hand threading solutions.
