S-91781A144 6-32 x 1/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws
Stainless Steel Slotted 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 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable fastening under demanding mechanical loads
- Precise Class 2A thread fit provides smooth assembly and consistent engagement in UNC coarse threaded applications
- Standard 82° countersink angle enables flush mounting for clean, professional finishes
- Full threading along the 1/4" length maximizes grip and load distribution across the entire fastener
- Rockwell B80 hardness rating maintains structural integrity and resists deformation during installation
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality and environmental safety for regulated industries
Professional Applications & Engineering Value
This 6-32 UNC flat head slotted screw delivers critical performance in applications where flush surface mounting and corrosion resistance are paramount. The 18-8 stainless steel material, enhanced by a passivated finish, combats oxidation and chemical exposure in manufacturing, electronics, and outdoor equipment. Its coarse thread spacing and Class 2A thread fit facilitate quick, secure installation in softer materials or where vibration resistance is needed. The flat head design with an 82° countersink ensures a smooth, unobtrusive finish, preventing snagging and improving aesthetics in consumer products and machinery. Fully threaded for uniform stress distribution, this screw solves common issues of loosening and material fatigue, making it a reliable choice for engineers seeking durability and compliance.
Specification Summary & Compliance
This screw adheres to ASME B18.6.3 specifications, ensuring dimensional accuracy and performance. Threads are UNC coarse with Class 2A fit, providing standard tolerances for consistent assembly. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety regulations for industrial use.
