S-97745A880 3/8"-16 x 1 5/8" Hanger Bolts

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance with black-oxide steel finish for long-lasting performance in demanding environments
• Effortless Installation thanks to 360° rotating head and wrench flats that prevent binding during tightening
• Secure Fastening with coarse UNC threads providing excellent grip and reduced cross-threading risk
• Optimal Load Distribution through 1-1/8" minimum thread length ensuring stable connections in extension spring systems
• Reliable Stud Anchor Design for consistent performance in industrial hanger applications
• Compliance Assurance meeting RoHS 3 and REACH environmental regulations for global supply chain compatibility
• Right-Hand Thread Configuration for standard installation procedures and tool compatibility

Professional Applications & Engineering Value

This black-oxide steel hanger bolt delivers exceptional engineering value through its specialized design for extension spring applications and industrial hanging systems. The 360° rotating head eliminates installation challenges by allowing free rotation while wrench flats provide positive torque control. The UNC coarse thread configuration ensures rapid assembly and superior resistance to vibration loosening in high-stress environments. Manufactured from black-oxide treated steel, this fastener provides enhanced corrosion protection without compromising structural integrity, making it ideal for automotive suspensions, industrial machinery, and construction applications where reliable stud anchoring is critical. The combination of right-hand threading and precise dimensional control ensures compatibility with standard components while delivering consistent performance across production cycles.

Specification Summary & Compliance

This hanger bolt features 3/8"-16 UNC coarse threads with Class 2A thread tolerances, ensuring precise fit and reliable performance. The 1-1/8" minimum thread length provides sufficient engagement for secure fastening in extension spring systems. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) compliance, meeting international environmental standards for industrial components. The stud anchor design follows established engineering specifications for hanger bolt applications, delivering consistent dimensional accuracy and mechanical performance.