S-97832A298 5/16"-24 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise component alignment ensured by the 3/8" shoulder diameter and 1/2" shoulder length with tight tolerances
- High-strength performance delivering 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Secure, fine-thread engagement with Class 3A UNF threads providing reliable fastening in vibration-prone settings
- Easy installation and removal featuring a knurled hex socket head for improved grip and torque application
- Long-term durability backed by Rockwell B55 hardness and compliance with ASME B18.3 standards
- Environmental and safety compliance meeting RoHS 3 and REACH regulations for global industrial use
Professional Applications & Engineering Value
This 5/16"-24 UNF stainless steel shoulder screw is engineered to address critical alignment and strength requirements in precision assemblies. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for machinery, automotive, and electronic equipment exposed to moisture or chemicals. The Class 3A thread fit and fine UNF threads ensure minimal backlash and secure fastening in high-vibration environments, while the 3/8" shoulder diameter provides accurate positioning for rotating parts like bearings and pulleys. With a knurled socket head and hex drive, installation is streamlined, reducing assembly time and improving maintenance efficiency in industrial applications.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for precise UNF threading. Dimensions include a shoulder diameter of 3/8" (tolerance: -0.004" to -0.002") and shoulder length of 1/2" (tolerance: -0.005" to 0.005"), ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental standards.
