S-97345A860 1/2"-13 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.
- Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable performance in high-stress applications.
- Precise alignment and smooth rotation enabled by the 3/4" shoulder diameter with tight tolerances, reducing wear on mating components.
- Secure and efficient installation with a 3/8" hex socket drive and knurled head for improved grip and torque application.
- Dependable thread engagement featuring a Class 3A fit for 1/2"-13 UNC coarse threads, ensuring consistent fastening and vibration resistance.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing quality and environmental safety for global supply chains.
- Versatile design with a 1-1/4" shoulder length, accommodating various assembly needs in machinery, automation, and precision equipment.
Professional Applications & Engineering Value
This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in industrial settings, such as misalignment, component wear, and corrosion. The 1/2"-13 UNC coarse thread with a Class 3A fit provides secure fastening and resistance to loosening under vibration, common in heavy machinery and automation systems. The knurled head and hex socket drive facilitate easy installation and maintenance, even in confined spaces. Made from durable 316 stainless steel, it excels in corrosive environments like chemical processing or marine applications, while the precise shoulder diameter and length ensure accurate positioning for gears, pulleys, and linkages, reducing downtime and enhancing operational efficiency.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with threads conforming to Class 3A tolerance for precise fit. Key dimensions include a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and shoulder length of 1-1/4" (tolerance: -0.005" to 0.005"). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory adherence for industrial use.
