S-90585A626 3/8"-16 x 1 1/4" 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
- Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction and passivated finish.
- Superior load-bearing capability with a high 70,000 psi tensile strength for demanding applications.
- Precise and reliable fastening ensured by the Class 3A thread fit on the UNC coarse threads.
- Efficient installation and removal with a standard hex drive (7/32") and a fully threaded design.
- Flush, low-profile seating for a smooth surface finish, thanks to the flat head with an 82° countersink angle.
- Consistent quality and dimensional accuracy guaranteed by compliance with the ASME B18.3 standard.
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental regulations.
Professional Applications & Engineering Value
This 3/8"-16 UNC flat head screw is engineered to solve critical challenges in industrial and marine settings where corrosion resistance and structural integrity are paramount. The use of 316 stainless steel, enhanced by a passivated finish, provides exceptional protection against chlorides and chemicals, significantly extending service life in aggressive environments. The coarse UNC thread with a Class 3A fit offers superior vibration resistance and ensures a secure, precise fit, reducing the risk of loosening in high-stress assemblies. The 82° countersink angle and flat head design allow for a flush installation, making it ideal for applications requiring a smooth surface, such as in machinery, structural frameworks, and offshore equipment where performance cannot be compromised.
Specification Summary & Compliance
This fastener adheres to strict dimensional and performance criteria. The threads conform to UNC standards with a precision Class 3A fit. Manufacturing and quality are governed by the ASME B18.3 specification. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets current environmental and safety regulations for hazardous substances.
