S-97345A970 3/4"-10 ASME B18.3 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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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 delivering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications.
- Precise Class 3A thread fit ensures secure, vibration-resistant assembly and reduces the risk of loosening under dynamic loads.
- Convenient installation and removal with a 1/2" hex drive and knurled head for enhanced grip, even with gloved hands.
- Accurate alignment and spacing provided by the 4" shoulder with tight diameter and length tolerances for consistent component positioning.
- Broad compliance and reliability meeting ASME B18.3 standards and RoHS 3/REACH regulations for global industrial use.
- Optimized for coarse threading with 3/4"-10 UNC threads, enabling faster assembly and reduced cross-threading risks.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery, automated systems, and precision equipment. The 4" shoulder length with controlled tolerances ensures exact component spacing, minimizing misalignment and wear in rotating assemblies or pivoting joints. Its Class 3A thread fit and coarse UNC thread provide robust, vibration-resistant fastening, essential for high-load applications like conveyor systems, motor mounts, and robotic arms. The knurled head and 1/2" hex drive facilitate quick maintenance, while the corrosion-resistant 316 material extends service life in demanding environments, from marine to chemical processing plants.
Specification Summary & Compliance
This shoulder screw features a 3/4"-10 UNC coarse thread with Class 3A fit for precise engagement, and a shoulder diameter of 7/8" with tight tolerances (-0.004" to -0.002") and length of 4" (±0.005"). Manufactured to ASME B18.3 specifications, it ensures dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.
