S-91268A710 1/2"-13 x 7" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 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
- Maximum Load Capacity - Grade 8 classification and 150,000 psi tensile strength ensure reliable performance in high-stress industrial applications
- Superior Durability - Rockwell C33 hardness rating provides exceptional resistance to wear and deformation under heavy loads
- Optimized Thread Engagement - UNC coarse threading with Class 2A fit offers quick assembly and secure fastening in various materials
- Enhanced Torque Application - External hex drive with 3/4" head width allows for high torque installation using standard tools
- Versatile Partial Threading - 1-1/4" minimum thread length on 7" shaft provides flexibility for both clamping and alignment applications
- Industry Standard Compliance - Meets ASME B18.2.1 specifications for consistent quality and interchangeability
- Environmental Responsibility - RoHS 3 and REACH compliance ensures safe use in regulated industries and applications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Grade 8 hex head screws deliver exceptional performance where failure is not an option. The steel construction combined with 150,000 psi tensile strength provides critical reliability in heavy machinery, structural steel connections, and high-vibration environments. The 1/2"-13 UNC coarse thread design ensures rapid installation and superior holding power in both metal and composite materials, while the partial threading allows for precise clamping force distribution. The external hex drive facilitates high-torque installation without stripping, making these industrial screws ideal for maintenance, construction, and manufacturing applications where strength and durability are paramount.
Specification Summary & Compliance
This high-strength fastener features precise Class 2A thread fit tolerances and 1/2"-13 UNC coarse threading meeting industry standards. Manufacturing complies with ASME B18.2.1 specifications (SAE J429) ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use in regulated industries and international markets.
