S-90585A148 5/16"-24 x 2" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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
- Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh chemical and marine environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 3A thread fit provides secure fastening with minimal backlash in critical assemblies
- Optimized flush mounting with standard 82° countersink angle for seamless surface integration
- Enhanced drive torque transmission through hex drive design prevents cam-out during installation
- Full threading along 2" length offers maximum grip range and adjustment flexibility
- Regulatory compliance assurance meets ASME B18.3, ASTM F879, RoHS 3, and REACH standards
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 316 stainless steel flat head screws deliver exceptional performance where corrosion resistance and mechanical reliability are paramount. The combination of UNF fine threading and Class 3A fit ensures vibration-resistant fastening in precision equipment, while the passivated finish enhances surface durability against chemical exposure. The hex drive system provides superior torque transmission during installation, preventing stripping in high-tension scenarios. Ideal for marine hardware, chemical processing equipment, and food-grade machinery, these fully threaded screws maintain structural integrity in environments where inferior fasteners would fail prematurely.
Specification Summary & Compliance
Manufactured to precision thread standards with Class 3A fit and UNF fine threading (5/16"-24). Dimensions include 2" length, 0.656" head diameter, and 82° countersink angle. Mechanical properties include 70,000 psi tensile strength and Rockwell B55 hardness. Compliant with ASME B18.3 specifications where identified as ASTM F879, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
