S-91771A160 6-32 x 2 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
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power from 80,000 psi tensile strength and Rockwell B80 hardness for reliable long-term performance
- Optimized installation efficiency with Phillips No. 2 drive and standard flat head profile for flush mounting
- Secure thread engagement through UNC coarse threading with Class 2A fit, preventing loosening under vibration
- Complete fastening coverage with full threading along the 2-1/4" length for maximum grip in various material thicknesses
- Precision countersinking with 82° angle ensuring smooth, flush surface finish in countersunk applications
- Regulatory confidence meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These Flat Head Phillips Screws deliver critical performance in demanding applications where corrosion resistance and structural integrity are paramount. Manufactured from passivated 18-8 stainless steel, they provide excellent protection against rust and chemical exposure in marine, food processing, and outdoor equipment. The UNC coarse thread design ensures rapid installation and superior pull-out resistance in softer materials, while the Class 2A thread fit maintains consistent clamping force in vibrating environments. The 82° countersink angle and flat head profile create seamless surface transitions in precision assemblies, making these fully threaded screws ideal for machinery, electronic enclosures, and structural frameworks requiring reliable, flush-mounted fasteners.
Specification Summary & Compliance
This 6-32 x 2-1/4" Flat Head Phillips Screw features UNC coarse threading with Class 2A thread fit per ASME B18.6.3 standards. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch-system dimensions include 0.262" head diameter, 0.083" head height, and standard flat head profile with No. 2 Phillips drive for consistent industrial compatibility.
