S-92620A261 1"-14 x 2 1/4" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength and Grade 8 classification for reliable performance in high-stress environments
• Superior corrosion resistance through zinc yellow-chromate plating that protects against rust and extends service life in harsh conditions
• Precise thread engagement with Class 2A thread fit and extra fine 1"-14 UNS thread pattern ensuring secure fastening and vibration resistance
• Maximum thread contact through full threading along the 2 1/4" length for enhanced grip strength and distribution of clamping forces
• Optimized drive efficiency with external hex head design (1 1/2" width, 5/8" height) providing excellent torque transmission and installation control
• Consistent mechanical properties with Rockwell C33 hardness maintaining dimensional stability under heavy loads and repeated use
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where high tensile strength and vibration resistance are paramount. The extra fine 1"-14 UNS thread configuration provides superior thread engagement in thin materials and applications requiring precise clamping force distribution. The zinc yellow-chromate plating offers enhanced corrosion protection in demanding environments, while the fully threaded design ensures maximum holding power across the entire 2 1/4" length. Engineered to withstand extreme mechanical stresses, these steel fasteners maintain integrity in construction, automotive, and manufacturing applications where failure is not an option.

Specification Summary & Compliance

Manufactured to exacting Class 2A thread fit tolerances with UNS extra fine threading (1"-14) and compliant with ASME B18.2.1 and SAE J429 specifications. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use across regulated industries. The Grade 8 classification guarantees consistent mechanical properties including 150,000 psi tensile strength and Rockwell C33 hardness for reliable performance in critical applications.