S-97345A241 1/4"-20 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 and marine environments.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable, durable fastening under load.
- Precise Class 3A thread fit ensures tight tolerances and secure assembly, reducing the risk of loosening in vibration-prone applications.
- Knurled socket head with hex drive provides excellent grip and easy installation, even in confined spaces.
- Standardized dimensions per ASME B18.3 ensure interchangeability and compatibility with existing tooling and components.
- Compliance with RoHS 3 and REACH guarantees environmental safety and regulatory adherence for global supply chains.
- Coarse UNC threading enables quick assembly and disassembly, improving maintenance efficiency in production settings.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The Class 3A thread fit and UNC coarse thread design provide exceptional clamping force and vibration resistance, minimizing downtime in high-cycle applications. With a knurled socket head and hex drive, it allows for secure tool engagement and efficient installation, reducing assembly time. The shoulder diameter and length are manufactured to tight tolerances, ensuring accurate alignment and bearing surfaces in pivoting or rotating mechanisms. Ideal for use in industrial equipment, electronic enclosures, and marine hardware, this screw delivers long-term reliability and performance under demanding conditions.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC thread with Class 3A fit for precise engagement, and a shoulder diameter tolerance of -0.004" to -0.002" for accurate alignment. It complies with ASME B18.3 specifications, ensuring dimensional consistency and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for industrial use.
