S-97832A364 1/2"-13 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications
• Precise thread engagement through Class 3A thread fit ensuring reliable, vibration-resistant connections
• Secure installation and removal with 5/16" hex drive and knurled head for enhanced grip
• Accurate component alignment thanks to 5/8" shoulder diameter with tight tolerance control
• Extended service life from Rockwell B55 hardness providing excellent wear resistance
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw delivers critical performance in demanding industrial settings where precision alignment and corrosion resistance are paramount. The 1/2"-13 UNC coarse thread with Class 3A fit ensures rapid assembly while maintaining vibration resistance in machinery, automation systems, and precision equipment. The generous 4-1/4" shoulder length provides substantial bearing surface for rotating components, reducing wear and maintaining alignment in conveyor systems, robotic arms, and manufacturing fixtures. The knurled head texture combined with hex socket drive allows for secure tool engagement even in confined spaces, while the right-hand thread direction follows industry-standard installation practices.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit per UNC specifications and dimensional compliance with ASME B18.3. Shoulder diameter maintains tight tolerance of -0.004" to -0.002" while shoulder length is controlled within -0.005" to 0.005". Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.