S-9634K35 1/4"-20 x 1 1/4" Hanger Bolts

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: The black-oxide steel finish provides a durable protective layer, reducing rust and extending service life in demanding industrial environments.
• Secure Fastening with Coarse Threads: UNC coarse threading ensures quick installation and reliable grip, minimizing the risk of cross-threading in wood or metal applications.
• Optimized for Extension Springs: Specifically designed for extension spring systems, offering stable anchoring to handle dynamic loads and repeated tension cycles.
• Ample Thread Engagement: With a minimum thread length of 7/8", these hanger bolts deliver superior holding power and vibration resistance in assembled components.
• Right-Hand Thread Convenience: Standard right-hand threading simplifies installation using common tools, speeding up assembly processes in production lines.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring safe, lead-free use in various industries without compromising on performance.
• Versatile Hole Compatibility: The 0.268" hole diameter allows for precise fitting in standard fixtures, reducing the need for custom modifications.

Professional Applications & Engineering Value

These 1/4"-20 UNC hanger bolts are engineered to address critical challenges in industrial fastening, particularly where extension springs require a steadfast anchor point. Made from black-oxide steel, they resist environmental wear and tear, preventing failure in high-stress scenarios like machinery mounts or automotive suspensions. The coarse thread design ensures rapid, secure engagement in materials prone to stripping, while the right-hand thread direction aligns with standard assembly practices, reducing labor time. Ideal for OEM and MRO applications, these studs provide reliable performance in furniture, agricultural equipment, and construction frameworks, where consistent tension and durability are paramount.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with precise dimensions: 1/4"-20 thread size, 1 1/4" length, and 7/8" minimum thread engagement. It complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and is REACH (EC 1907/2006) compliant, ensuring environmental and safety standards are met for industrial hardware.