S-97345A285 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable, heavy-duty fastening.
• Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit, reducing wear and assembly time.
• Enhanced grip and easy installation provided by the knurled head and 5/64" hex socket drive, preventing tool slippage.
• Versatile 1-inch shoulder length with tight tolerances for accurate spacing and positioning of components in assemblies.
• Robust coarse UNC threads designed for quick assembly and high resistance to vibration loosening in demanding applications.
• Compliance with global regulations including RoHS 3 and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The Class 3A thread fit and coarse UNC thread provide secure, vibration-resistant fastening, minimizing the risk of joint failure in high-stress applications. The 1-inch shoulder length with controlled tolerances allows for exact component alignment, reducing misalignment and wear in rotating assemblies. With a Rockwell B79 hardness and high tensile strength, it withstands heavy loads and repetitive motion, making it ideal for use in manufacturing equipment, robotics, and marine applications where corrosion resistance and durability are paramount. The knurled head and hex socket drive facilitate quick installation and maintenance, enhancing productivity in industrial settings.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for precise thread engagement. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 1" (tolerance: -0.005" to 0.005"), ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.