S-97832A150 5/16"-18 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 environments and reducing maintenance costs.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads, minimizing failure risks.
- Precise Class 3A thread fit provides secure, vibration-resistant fastening for critical assemblies.
- Knurled head texture offers enhanced grip for easier manual installation and adjustment.
- 1 3/4" shoulder length with tight tolerances allows accurate component alignment and smooth rotational movement.
- Hex socket drive design enables efficient torque application in confined spaces.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards.
Professional Applications & Engineering Value
This socket head shoulder screw is engineered to address common industrial challenges such as misalignment and component wear. The 18-8 stainless steel material provides excellent corrosion resistance, extending service life in moist or chemical-exposed settings. Its 5/16"-18 UNC coarse thread and Class 3A fit ensure quick assembly and secure holding power, reducing loosening from vibrations. The 1 3/4" shoulder length with minimal tolerances acts as a precise pivot or axle in machinery, supporting rotational elements in applications like conveyor systems, automotive fixtures, and precision instruments. The knurled head and hex drive facilitate easy handling and installation, boosting efficiency in high-volume production lines.
Specification Summary & Compliance
The screw features a 5/16"-18 UNC coarse thread with Class 3A fit for high precision, along with a shoulder diameter of 1/2" and length of 1 3/4" held to tight tolerances (e.g., shoulder diameter: -0.004" to -0.002"). It meets ASME B18.3 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses.
