S-91500A626 3/8"-16 x 1 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips 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 with 316 stainless steel construction, ideal for harsh chemical and marine environments
- High-strength performance with 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing applications
- Precision thread engagement through Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Enhanced surface durability with passivated finish providing superior protection against oxidation and wear
- Streamlined installation with standard 82° countersink angle allowing flush mounting in various materials
- Full-threaded design maximizing grip length and pull-out strength across the entire 1 1/4" shaft
- Regulatory compliance meeting ASME B18.6.3 standards plus RoHS 3 and REACH environmental directives
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 316 stainless steel flat head screws deliver critical corrosion resistance where exposure to chemicals, saltwater, or extreme temperatures would compromise ordinary fasteners. The fully threaded 3/8"-16 UNC configuration with coarse spacing provides rapid installation and superior holding power in metal, wood, and composite assemblies. The passivated finish enhances the natural corrosion resistance of 316 stainless while the Phillips drive and standardized 82° countersink ensure consistent flush mounting in precision applications. These screws solve common failure points in marine equipment, chemical processing plants, and food processing machinery where both structural integrity and environmental compliance are mandatory.
Specification Summary & Compliance
This flat head Phillips screw features Class 2A thread fit per UNC standards with 3/8"-16 coarse threading and full-length threads. Manufactured to ASME B18.6.3 specifications with dimensional accuracy including 0.717" head diameter and 1 1/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
