S-97345A901 3/4"-10 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Superior load-bearing capacity thanks to 70,000 psi tensile strength and 35,000 psi minimum shear strength, ensuring reliability under high stress.
• Precise assembly and alignment enabled by Class 3A thread fit and standard shoulder fit, reducing play and improving component stability.
• Secure, non-slip installation with a knurled socket head and 1/2" hex drive, allowing for high-torque application without tool slippage.
• Optimized for heavy-duty applications featuring coarse UNC threads and a robust 1" shoulder diameter, providing strong fastening in demanding settings.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, quality, and environmental responsibility.
• Consistent performance and durability backed by Rockwell B79 hardness and tight tolerances on shoulder dimensions, minimizing wear and failure risks.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial machinery, automation, and heavy equipment. The 3/4"-10 UNC coarse threads with Class 3A fit ensure rapid, secure fastening in high-vibration environments, reducing the risk of loosening. The knurled socket head and 1/2" hex drive facilitate easy installation with standard tools, enhancing workflow efficiency. Made from corrosion-resistant 316 stainless steel, it withstands exposure to chemicals and moisture, making it ideal for precision applications like pivots, shafts, and spacers. Its robust shoulder diameter and length provide stable support for rotating parts, minimizing misalignment and extending equipment lifespan in demanding sectors.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and consistent performance. It meets ASME B18.3 specifications for design and manufacturing, ensuring reliability in mechanical assemblies. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free from hazardous substances and safe for various industrial uses. Key tolerances include shoulder diameter (-0.004" to -0.002") and shoulder length (-0.005" to 0.005"), supporting high precision in applications requiring exact alignment and fit.