S-92620A953 1"-8 x 2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Maximum Load Capacity: With 150,000 psi tensile strength and Grade 8 classification, these screws withstand extreme stress and vibration in heavy machinery and structural applications.
- Superior Corrosion Protection: Zinc yellow-chromate plating creates a durable barrier against rust and environmental degradation, extending service life in harsh industrial conditions.
- Precision Thread Engagement: Class 2A thread fit ensures consistent, reliable fastening with reduced risk of cross-threading during installation.
- Optimized Drive Efficiency: External hex head design provides maximum torque transfer for secure tightening in confined spaces using standard wrench tools.
- Enhanced Material Integrity: Rockwell C33 hardness maintains thread form and structural stability under repeated loading cycles.
- Full Thread Coverage: 2" length with complete threading offers versatile fastening depth and superior grip across material thicknesses.
- Regulatory Compliance: Meets ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for quality assurance and environmental safety.
Professional Applications & Engineering Value
Engineered for critical industrial applications, these Grade 8 hex head screws solve common fastening challenges in construction, heavy equipment, and manufacturing. The coarse UNC thread design prevents loosening under dynamic loads while facilitating quicker installation in structural steel, machinery bases, and automotive assemblies. Zinc yellow-chromate plating provides sacrificial corrosion protection that outperforms standard zinc coatings in humid or chemical-exposed environments. Combined with 150,000 psi tensile strength and Rockwell C33 hardness, these fully threaded fasteners maintain clamp force integrity in high-vibration settings where joint failure is not an option.
Specification Summary & Compliance
Manufactured to Class 2A thread tolerances per UNC standards with 1"-8 thread size and coarse pitch configuration. Complies with ASME B18.2.1 dimensional specifications and SAE J429 Grade 8 mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
