S-90585A232 8-32 x 7/8" 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 with 316 stainless steel construction and passivated finish, ideal for harsh environments and chemical exposure.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high stress.
- Precise thread engagement with Class 3A thread fit and UNC coarse threading, ensuring secure fastening and vibration resistance.
- Full threading design provides maximum grip and load distribution along the entire 7/8" length.
- Easy installation and removal with a 3/32" hex drive and standard flat head profile for flush mounting in countersunk applications.
- Compliance with industry standards including ASME B18.3 and ASTM F879, guaranteeing consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
This 316 stainless steel flat head screw is engineered to address critical challenges in demanding industrial settings, such as marine, chemical processing, and food equipment, where corrosion resistance and structural integrity are paramount. The UNC coarse threading and Class 3A thread fit minimize loosening under vibration, while the fully threaded design enhances load-bearing capacity in thin materials. The passivated finish further boosts durability against oxidation and chemical attack, making it a reliable choice for heavy-duty fastening in assemblies requiring flush surfaces and high tensile strength up to 70,000 psi. Its compliance with ASME B18.3 ensures dimensional accuracy, reducing installation errors and improving maintenance efficiency.
Specification Summary & Compliance
This screw adheres to precise dimensional tolerances, including a Class 3A thread fit for superior thread engagement and a head diameter tolerance of -0.048" to 0". It conforms to ASME B18.3 and ASTM F879 specifications, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.
