S-97345A771 3/8"-16 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 extended service life.
- Precise component alignment ensured by the 1/2" diameter shoulder with tight tolerance, reducing wear and misalignment in assemblies.
- High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Secure and efficient installation with a 1/4" hex socket drive and knurled head for improved grip and torque application.
- Consistent thread engagement provided by the Class 3A UNC coarse thread fit, ensuring vibration resistance and assembly reliability.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing quality and environmental safety.
- Versatile shoulder design with a 5" length for spacing or pivoting components in machinery and precision equipment.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and industrial equipment. The 5" shoulder length and 1/2" diameter provide a stable pivot or spacer, minimizing deflection and wear in rotating assemblies. Made from 316 stainless steel, it resists corrosion from chemicals and moisture, extending component life in harsh environments. The Class 3A UNC thread fit and knurled socket head ensure secure, repeatable fastening with high torque capability, reducing maintenance downtime. Ideal for applications like conveyor systems, robotic arms, and tooling jigs, this shoulder screw delivers reliable performance where alignment and durability are paramount.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC coarse thread with Class 3A fit for precise tolerance, a shoulder diameter of 1/2" (tolerance: -0.004" to -0.002"), and shoulder length of 5" (tolerance: -0.005" to 0.005"). It complies with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and reliability in industrial use.
