S-91255A146 6-32 x 3/8" ASME B18.3 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments
- Superior thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening
- High tensile strength (120,000 psi) for demanding applications requiring maximum load capacity
- Optimized drive efficiency with 5/64" hex drive preventing cam-out during installation
- Enhanced durability from Rockwell C39 hardness alloy steel resisting wear and deformation
- Full threading design providing consistent grip along the entire 3/8" length for uniform clamping force
- Regulatory compliance meeting ASME B18.3, ASTM F835, RoHS 3, and REACH for global quality assurance
Professional Applications & Engineering Value
Engineered for precision assembly in industrial machinery, electronics, and automotive systems, these 6-32 UNC rounded head screws deliver critical performance advantages. The black-oxide alloy steel construction provides superior corrosion protection in humid or chemically aggressive environments, while the Class 3A thread fit ensures precise mating with tapped holes to prevent loosening under vibration. The coarse thread spacing enables rapid installation in production lines, and the button head profile creates a low-profile, aesthetically clean finish. With 120,000 psi tensile strength and Rockwell C39 hardness, these fasteners maintain structural integrity in high-stress applications, making them ideal for securing critical components where reliability is paramount.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit tolerances per UNC standards with coarse thread spacing for optimal engagement. Fully compliant with ASME B18.3 dimensional specifications and ASTM F835 mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for restricted substance control. Right-hand fully threaded design with standardized rounded button head profile ensures interchangeability and consistent performance across industrial applications.
