S-91255A829 0-80 x 1" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding environments
• Exceptional tensile strength (120,000 psi) ensures reliable performance under high-stress applications
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies
• Hex drive design (0.035") allows for easy installation with standard tools and reduced cam-out risk
• Fully threaded UNF fine thread delivers maximum grip and load distribution along the entire length
• High hardness (Rockwell C39) maintains thread integrity and prevents stripping during repeated use
• Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interchangeability

Professional Applications & Engineering Value

These 0-80 UNF fine thread screws with black-oxide alloy steel construction address critical industrial needs for durability and precision. The Class 3A thread fit minimizes backlash in high-vibration environments like aerospace components and electronic enclosures, while the fully threaded design ensures uniform stress distribution. The rounded head with hex drive facilitates quick assembly in confined spaces, reducing installation time. Ideal for precision machinery, automotive systems, and telecommunications equipment, these screws provide long-term reliability with their corrosion-resistant coating and compliance with major industry standards.

Specification Summary & Compliance

This screw features a 0-80 UNF fine thread with Class 3A fit for tight tolerance applications, manufactured to ASME B18.3 and ASTM F835 specifications. It maintains dimensional accuracy with a 1" length and fully threaded profile. The product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence for global industrial use.