S-97345A793 1/2"-13 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for extended service life in harsh environments
• Precise component alignment enabled by the 5/8" shoulder diameter with tight tolerance control
• High-load bearing capability with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure installation and removal through hex socket drive and knurled head for superior tool grip
• Reliable thread engagement with Class 3A UNC coarse threads ensuring vibration resistance
• Environmental compliance meeting RoHS 3 and REACH standards for global industrial use
• Standardized dimensions per ASME B18.3 specification for consistent performance and interchangeability

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw delivers exceptional engineering value in precision assembly applications where alignment and corrosion resistance are critical. The 1/2"-13 UNC coarse thread with Class 3A fit provides superior holding power in high-vibration environments, while the precisely machined shoulder ensures accurate component positioning in machinery, automation systems, and rotating assemblies. The knurled head texture combined with hex socket drive allows for secure tool engagement during installation, preventing slippage in confined spaces. Ideal for industrial equipment, marine applications, and food processing machinery, this fastener solves alignment challenges while withstanding corrosive conditions.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision tolerance. Features include: 1/2"-13 UNC coarse thread, 5/8" shoulder diameter (-0.004" to -0.002" tolerance), 1 5/8" shoulder length (±0.005" tolerance), Rockwell B79 hardness, and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial applications.