S-90585A137 10-32 x 1 1/8" 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 in harsh environments thanks to 316 stainless steel construction and passivated finish
- Exceptional thread engagement and vibration resistance ensured by the precision Class 3A fit and UNF fine threading
- High-strength performance under load with a tensile strength of 70,000 psi and Rockwell B55 hardness
- Reliable, flush-mounted fastening with a standard flat head profile and 82° countersink angle
- Easy and secure installation provided by the hex drive style, preventing cam-out during torque application
- Full-length threading for maximum grip and holding power across the entire screw length
- Compliance with major industry and environmental regulations, including ASME B18.3, RoHS 3, and REACH
Professional Applications & Engineering Value
This 10-32 UNF Flat Head Screw is engineered from 316 Stainless Steel to solve critical challenges in corrosive and high-stress environments. The passivated finish enhances its natural resistance to chemicals, saltwater, and industrial pollutants, making it ideal for marine, chemical processing, and food-grade equipment. The Class 3A thread fit and fine UNF threading provide superior vibration resistance and precise alignment in assemblies where loosening is a concern. Combined with a 70000 psi tensile strength, this screw delivers reliable, long-term fastening in structural, machinery, and OEM applications where failure is not an option. The hex drive and flat head design ensure a clean, flush finish while allowing for high torque application without slippage.
Specification Summary & Compliance
This screw meets precise dimensional standards with a Class 3A thread fit and UNF fine thread specification. Manufacturing and quality are governed by ASME B18.3 standards, ensuring consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for use in regulated markets.
