S-97345A894 3/4"-10 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength for heavy-duty applications
• Precise alignment and bearing surface provided by the 1" diameter shoulder with tight diameter tolerance (-0.004" to -0.002")
• Reliable thread engagement with Class 3A thread fit ensuring consistent performance in demanding assemblies
• Easy installation and removal with 1/2" hex drive socket and knurled head for superior grip during torque application
• Industry-standard compliance meeting ASME B18.3 specifications for guaranteed interchangeability and quality
• Environmental regulation compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw delivers critical engineering solutions where precision alignment and corrosion resistance are paramount. The 1" shoulder diameter with controlled tolerance provides an exact bearing surface for rotating components in machinery, eliminating the need for separate spacers and reducing assembly complexity. The 3/4"-10 UNC coarse threads with Class 3A fit ensure rapid installation and vibration resistance in high-stress applications. The combination of 70,000 psi tensile strength and Rockwell B79 hardness makes these socket head shoulder screws ideal for precision equipment, automotive jigs, and material handling systems where dimensional stability under load is critical. The knurled head texture enhances grip during manual adjustments in confined spaces.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for superior thread engagement. Features include: 3/4"-10 UNC coarse threads, 1" shoulder diameter with -0.004" to -0.002" tolerance, and 1/2" shoulder length with ±0.005" tolerance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification confirms 316 stainless steel composition with Rockwell B79 hardness and 70,000 psi tensile strength performance.