S-97760A925 M10 x 20 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
- Exceptional tensile strength with Class 8.8 rating and 110,000 psi capability for reliable performance in high-stress applications
- Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
- Left-hand thread design provides secure fastening in applications requiring reverse-threading safety and specialized assembly
- Precise Class 6h thread fit ensures consistent engagement and vibration resistance in coarse thread applications
- Full threading along 20mm length offers maximum grip and load distribution across the entire fastener
- External hex drive with 17mm head enables high-torque installation and removal with standard tools
- Rockwell C21 hardness maintains structural integrity under repeated stress and mechanical loads
Professional Applications & Engineering Value
This M10 left-hand hex head screw delivers critical engineering solutions where reverse-threading prevents accidental loosening in rotating machinery and specialized equipment. The Class 8.8 steel construction with zinc plating combats corrosion in industrial environments while maintaining 110,000 psi tensile strength for heavy-duty applications. The metric coarse thread (1.5mm pitch) provides rapid installation and superior resistance to vibration-induced failure. Engineered to ASME B18.2.3.1M and ISO 898-1 specifications, this fully threaded fastener ensures consistent performance in automotive assemblies, machinery maintenance, and construction applications where reliability under dynamic loads is paramount.
Specification Summary & Compliance
Manufactured to precise Class 6h thread fit tolerances with M10x1.5mm coarse metric threading and 20mm length. Complies with ASME B18.2.3.1M dimensional standards and ISO 898-1 mechanical properties requirements for Class 8.8 fasteners. The zinc-plated finish provides corrosion protection while maintaining compliance with industrial fastener specifications for reliable performance in professional applications.
