S-90291A712 1/2"-13 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon 6/6 plastic tip that maintains secure fastening under dynamic loads
• Exceptional corrosion resistance from 18-8 stainless steel construction for long service life in harsh environments
• Precise thread engagement with Class 3A thread fit ensuring reliable, tight-tolerance assembly
• Easy installation and removal via 1/4" hex drive that prevents tool slippage and damage
• Broad temperature compatibility with tip functioning from -50° to 250°F for diverse industrial settings
• Consistent performance backed by Rockwell B80 hardness for durable, deformation-resistant operation
• Regulatory compliance meeting ASME B18.3 standards and environmental directives (RoHS 3, REACH)

Professional Applications & Engineering Value

This 1/2"-13 UNC hex drive set screw delivers critical engineering solutions for industrial applications where vibration loosening compromises safety and performance. The 18-8 stainless steel body resists corrosion in moist or chemical environments, while the green nylon 6/6 plastic tip creates a secure, non-marring grip that absorbs shocks and maintains clamp force. Its headless design allows flush mounting in confined spaces, and the coarse UNC threads enable quick installation in soft materials. Ideal for machinery, automotive, and assembly line fixtures, this vibration-resistant set screw prevents costly downtime by ensuring components stay precisely aligned under continuous operation.

Specification Summary & Compliance

This set screw features Class 3A thread fit for high-precision assembly with tight tolerances, 1/2"-13 UNC coarse threads for rapid installation, and a 1/4" hex drive for secure tool engagement. It complies with ASME B18.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for global industrial use.