S-90311A147 10-24 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 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
- Reliable vibration resistance provided by the nylon patch thread locker, maintaining secure fastening from -50° to 250° F.
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications.
- Precise alignment and smooth rotation enabled by the standard shoulder fit and Class 3A thread fit, reducing wear and assembly errors.
- Easy installation and removal with a hex drive socket head and knurled texture for improved grip and torque application.
- Broad industrial compliance meeting ASME B18.3 specifications, RoHS 3, and REACH standards for quality and safety assurance.
- Durable material hardness rated at Rockwell B79, ensuring consistent performance under repetitive stress and load.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery and assembly lines. The 10-24 UNC coarse thread and Class 3A thread fit provide excellent engagement and tolerance control, minimizing the risk of loosening in high-vibration settings like robotics, automotive systems, and conveyor equipment. The integrated nylon patch thread locker offers consistent locking force across a wide temperature range (-50° to 250° F), eliminating the need for additional adhesives and simplifying maintenance. With a robust shoulder diameter of 1/4" and precise length tolerances, it ensures accurate component spacing and alignment, reducing downtime and enhancing operational reliability in industrial fastening applications.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for superior precision and a coarse UNC thread design. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. Key dimensional tolerances include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", supporting reliable performance in engineered assemblies.
