S-97345A526 1/4"-20 ASME B18.3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior Corrosion Resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life.
- High Tensile and Shear Strength (70,000 psi tensile, 35,000 psi shear) ensures reliable performance under heavy loads and stress.
- Precision Class 3A Thread Fit provides secure, vibration-resistant fastening for critical assemblies.
- Knurled Socket Head with Hex Drive offers excellent grip and torque application, reducing tool slippage during installation.
- Accurate Shoulder Diameter and Length allows for precise component alignment and acts as a pivot or shaft in machinery.
- Compliance with ASME B18.3 Standards guarantees consistent quality, dimensional accuracy, and interchangeability.
- RoHS 3 and REACH Compliant for safe use in regulated industries, ensuring environmental and health safety standards are met.
Professional Applications & Engineering Value
This 1/4"-20 UNC Class 3A shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. Made from 316 Stainless Steel, it excels in corrosive settings like chemical processing, marine, and food equipment, offering long-term durability. The coarse UNC thread and Class 3A fit ensure tight, reliable connections that resist loosening under vibration, making it ideal for precision machinery, pivots, and rotating assemblies. The socket head with hex drive facilitates easy installation in confined spaces, while the knurled texture enhances handling. Its high tensile and shear strength supports heavy-duty applications, reducing maintenance needs and downtime in industrial shoulder screw uses.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC coarse thread with Class 3A fit for high precision, a shoulder diameter of 5/16" with tight tolerances, and a thread length of 7/16". 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 adherence to environmental and safety standards in industrial applications.
