S-93386A460 1/4"-20 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material for extended service life in demanding environments
• Precise Class 3A thread fit ensures tight, reliable fastening with minimal backlash in critical assemblies
• Deep 1/8" hex drive provides excellent torque transmission and reduces tool slippage during installation
• Effective cup point design creates positive locking action by biting into shaft materials for secure positioning
• Compact headless construction allows installation in confined spaces where protruding fasteners aren't feasible
• Industry-standard UNC coarse threads enable quick assembly and disassembly while resisting vibration loosening
• Full regulatory compliance meets ASME B18.3 specifications and environmental standards for global industrial use

Professional Applications & Engineering Value

This 1/4"-20 UNC Class 3A set screw delivers exceptional engineering value through its 400 Nickel construction, providing superior corrosion resistance that outperforms standard steel fasteners in harsh operating conditions. The headless design with hex drive solves space constraints in precision machinery, while the cup point tip ensures positive engagement with shaft materials to prevent component slippage under dynamic loads. Ideal for permanent positioning applications in industrial equipment, power transmission systems, and precision assemblies, this coarse thread set screw maintains clamping force through its Class 3A thread fit, reducing maintenance requirements and downtime in continuous operation environments.

Specification Summary & Compliance

Manufactured to exact ASME B18.3 standards with 1/4"-20 UNC coarse threads and precision Class 3A thread fit for consistent performance. The 1/2" length and 1/8" hex drive dimensions ensure proper installation torque. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across global industrial markets.