S-92949A423 8-32 x 3" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 70,000 PSI ensures reliable load-bearing capacity and structural integrity in demanding applications
- Precision Class 3A thread fit guarantees secure, vibration-resistant fastening with minimal risk of loosening
- Hex drive design provides superior torque transmission and easy installation with standard tools
- Fully threaded shank offers maximum grip length and uniform clamping force across the entire engagement area
- Rounded button head profile delivers a low-profile, aesthetically clean finish while reducing snag hazards
- Regulatory compliance with ASME B18.3, RoHS 3, and REACH standards ensures environmental safety and quality assurance
Professional Applications & Engineering Value
These 8-32 UNC stainless steel screws deliver critical performance in industrial settings where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel material combined with a passivated finish provides superior protection against oxidation and chemical exposure, extending service life in manufacturing equipment, marine hardware, and food processing machinery. The coarse thread spacing and Class 3A thread fit enable rapid assembly with exceptional vibration resistance, reducing maintenance frequency. The hex drive configuration ensures efficient installation in confined spaces, while the rounded head design minimizes protrusion risks. These fully threaded fasteners are engineered to maintain clamping force under dynamic loads, making them ideal for structural assemblies, machinery frames, and precision instrumentation where failure is not an option.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNC coarse thread profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features include 8-32 thread size, 3-inch length, right-hand thread direction, and fully threaded construction.
