S-97345A869 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction, ideal for harsh industrial environments and extended service life
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for reliable heavy-duty applications
• Precision alignment and fit ensured by Class 3A thread tolerance and standard shoulder fit for reduced assembly vibration
• Easy installation and removal with 3/8" hex drive and knurled head for secure grip during torque application
• Robust shoulder design featuring 3/4" diameter and 1 5/8" length for stable component mounting and rotational control
• Wide compatibility with 5/8"-11 UNC coarse threads meeting common industrial equipment standards
• Regulatory compliance with ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw delivers exceptional engineering value in demanding applications where precision alignment and corrosion resistance are critical. The Class 3A thread fit ensures minimal backlash in assemblies, while the knurled socket head provides superior grip during installation in confined spaces. The substantial shoulder diameter and length act as precise locating surfaces for rotating components, bearings, and linkages, eliminating the need for additional spacers or bushings. Engineered for heavy-duty industrial equipment, automation systems, and marine applications, this shoulder screw maintains dimensional stability under high tensile and shear loads, preventing premature failure in vibrating environments. The UNC coarse thread facilitates quicker assembly while maintaining the strength required for critical connections.

Specification Summary & Compliance

This precision shoulder screw features 5/8"-11 UNC coarse threads with Class 3A fit for superior thread engagement. Critical dimensions include shoulder diameter of 0.75" with tolerance of -0.004" to -0.002" and shoulder length of 1.625" with tolerance of -0.005" to 0.005". Manufactured to ASME B18.3 specifications with material hardness of Rockwell B79. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.