S-92865A537 1/4"-20 x 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance provided by zinc plating, extending service life in harsh industrial environments
- Optimized thread engagement through UNC coarse threading and Class 2A fit ensures secure fastening and vibration resistance
- Enhanced durability with Rockwell C25 hardness maintaining structural integrity under repeated stress
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed interchangeability
- Full-thread design maximizes grip length and distributes clamping force evenly across the entire fastener
- Environmental responsibility through RoHS 3 and REACH compliance for sustainable manufacturing practices
Professional Applications & Engineering Value
These Grade 5 hex head screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc-plated steel construction prevents galvanic corrosion in industrial settings, while the 1/4-20 UNC coarse thread configuration enables rapid assembly and disassembly in maintenance operations. The external hex drive and 7/16" head width provide superior torque transmission, preventing tool slippage during high-tension applications. These fully threaded fasteners are engineered for structural connections in machinery, automotive assemblies, and construction frameworks where vibration resistance and long-term reliability are essential. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures these screws maintain clamping force under dynamic loads and thermal cycling.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 1/4"-20 UNC coarse thread specifications. These hex head screws comply with ASME B18.2.1 dimensional standards and SAE J429 material requirements. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. The 1/2" length and external hex drive configuration ensure consistent performance across industrial fastening applications requiring Grade 5 strength classification.
