S-91355A997 6-32 x 1" ASTM F835 Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with 120,000 psi tensile strength and Rockwell C39 hardness for reliable performance in demanding industrial environments
• Superior corrosion resistance through black-oxide alloy steel construction, extending service life in various operating conditions
• Precise thread engagement with Class 3A fit and UNC coarse spacing ensuring secure fastening and vibration resistance
• Easy installation and removal with 5/64" hex drive design providing excellent torque transmission and tool access
• Enhanced bearing surface through flanged design and wide button head profile, distributing load evenly and preventing surface damage
• Maximum thread coverage with fully threaded shank design offering consistent holding power along the entire fastener length
• Regulatory compliance assurance meeting ASTM F835, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This black-oxide alloy steel rounded head screw delivers exceptional engineering value for industrial applications where high tensile strength and reliable fastening are critical. The combination of Class 3A thread fit with 6-32 UNC coarse spacing provides superior vibration resistance in machinery, automotive assemblies, and heavy equipment. The flanged design with wide button head profile eliminates the need for separate washers while providing excellent load distribution. The fully threaded configuration ensures maximum grip length for secure fastening in metal fabrication, electrical enclosures, and structural components. The hex drive design allows for high-torque installation in confined spaces, making these industrial screws ideal for maintenance, repair, and OEM applications requiring dependable, long-term fastening solutions.

Specification Summary & Compliance

This high-performance fastener features precise Class 3A thread fit with 6-32 UNC coarse spacing and right-hand threading. Manufactured to ASTM F835 specifications, the screw maintains dimensional accuracy and mechanical properties throughout its 1" length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The black-oxide surface treatment on alloy steel provides additional corrosion protection while maintaining the specified mechanical properties of 120,000 psi tensile strength and Rockwell C39 hardness.