S-97654A703 1/2"-13 x 1 1/2" Stainless Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
• Easy installation and removal with 5/16" hex drive design, providing secure tool engagement
• Enhanced load distribution through the flanged, wide rounded head design, reducing surface pressure
• Full threading along the 1 1/2" length maximizes grip and fastening versatility
• Regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible sourcing

Professional Applications & Engineering Value

This 1/2"-13 UNC Rounded Head Hex Drive Screw delivers exceptional engineering value in heavy machinery, structural frameworks, and industrial equipment where vibration resistance and corrosion protection are critical. The 18-8 Stainless Steel material combined with a passivated finish significantly extends service life in moist or chemically aggressive settings. Its Class 3A coarse thread and fully threaded design provide superior holding power and minimize loosening under dynamic loads. The flanged button head offers a low-profile, wide-bearing surface that distributes clamp load effectively, preventing damage to assembled components. These features make it an ideal industrial screw for applications requiring reliable, high-strength fastening with minimal maintenance.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC coarse thread with Class 3A fit for precision threading and assembly. It is manufactured from 18-8 Stainless Steel with a passivated finish and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental and safety regulations are fully satisfied.