S-91255A267 10-32 x 5/8" ASTM F835 Steel Button Head Hex-Drive Screws
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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress applications
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Full threading design offers maximum grip length and consistent fastening performance
- 1/8" hex drive compatibility enables quick installation and removal with standard tools
- Rockwell C39 hardness rating maintains thread integrity and prevents stripping during repeated use
- Comprehensive regulatory compliance including RoHS 3 and REACH for global market acceptance
Professional Applications & Engineering Value
These black-oxide alloy steel rounded head screws deliver critical performance advantages in precision engineering applications where vibration resistance and corrosion protection are paramount. The 10-32 UNF fine thread configuration with Class 3A fit ensures tight tolerances for machinery, automotive, and electronic enclosures requiring secure fastening in confined spaces. The button head profile with standard rounded contour provides a low-profile finish while the fully threaded design maximizes contact surface area. Engineered to withstand harsh operating conditions, these high-strength industrial fasteners prevent loosening under dynamic loads while maintaining chemical compliance for sensitive applications.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 and ASTM F835 specifications, these screws feature precision UNF fine threads with Class 3A fit for superior dimensional accuracy. The black-oxide alloy steel construction provides consistent mechanical properties with 120,000 psi tensile strength and Rockwell C39 hardness. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance for industrial applications requiring certified components.
