S-90585A226 8-32 x 3/8" ASME B18.3 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 environments
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing
- Precise thread engagement with Class 3A fit and UNC coarse threads ensuring secure fastening and vibration resistance
- Efficient installation via 3/32" hex drive and standard 82° countersink angle for flush, professional finishes
- Full threading coverage providing consistent grip along the entire 3/8" length for uniform clamping force
- Regulatory compliance meeting ASME B18.3 standards and environmental directives (RoHS 3, REACH) for safe global use
- Dimensional consistency with controlled head diameter tolerance ensuring reliable fit in pre-drilled applications
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 8-32 UNC flat head screws in 316 Stainless Steel address critical challenges like chemical exposure, saltwater corrosion, and high-stress fatigue. The passivated finish enhances surface durability while the Class 3A thread fit minimizes loosening under dynamic loads. Ideal for machinery, marine hardware, and chemical processing equipment, the fully threaded design distributes stress evenly, and the 82° countersink allows seamless integration into precision assemblies. Their coarse thread spacing enables quicker installation in soft materials or where rapid disassembly is required, making them a versatile solution for maintenance-critical applications.
Specification Summary & Compliance
This flat head screw maintains precise Class 3A thread fit per UNC standards with a head diameter tolerance of -0.048" to 0". Manufacturing adheres to ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe industrial use worldwide.
