S-97832A175 8-32 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 1/4" shoulder diameter and controlled tolerances for reliable assembly.
- High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
- Secure, vibration-resistant fastening due to the Class 3A thread fit and coarse UNC thread for quick assembly.
- Easy installation and removal with a hex drive and knurled head for improved grip and torque application.
- Long-term durability supported by Rockwell B55 hardness, maintaining integrity under repeated use.
- Regulatory compliance and safety meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use.
Professional Applications & Engineering Value
This shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial applications, such as machinery assemblies, pivoting mechanisms, and precision instruments. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance in humid or corrosive settings. With a 3/8" shoulder length and 1/4" shoulder diameter, it ensures accurate positioning of components, minimizing misalignment and wear. The UNC coarse thread and Class 3A thread fit offer reliable, vibration-resistant fastening, while the hex drive and knurled head facilitate easy handling in tight spaces. Ideal for heavy-duty uses, this screw enhances operational efficiency and longevity in automated systems and equipment.
Specification Summary & Compliance
This shoulder screw features precise dimensions, including a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", ensuring high dimensional accuracy. It adheres to UNC thread standards with a Class 3A thread fit for superior engagement. Manufactured in compliance with ASME B18.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable industrial practices.
