S-97345A673 5/16"-18 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-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications.
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in assembled components.
- Secure and easy installation with a knurled socket head and 1/4" hex drive, preventing tool slippage.
- Accurate shoulder dimensions with tight tolerances for consistent alignment and bearing surfaces in machinery.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety.
- Coarse UNC thread design facilitates quicker assembly and disassembly, improving maintenance efficiency.
Professional Applications & Engineering Value
This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in industrial settings, such as corrosion in humid or chemical-exposed environments and the need for high tensile strength under dynamic loads. The Class 3A thread fit and precise shoulder diameter and length tolerances ensure minimal play and optimal alignment in assemblies like rotating shafts, pivots, and guides. Its knurled socket head with a 1/4" hex drive allows for secure torque application, reducing the risk of stripping during installation. Ideal for use in automation equipment, precision instruments, and heavy-duty machinery, this screw provides long-term reliability and reduces maintenance downtime, making it a cost-effective solution for B2B procurement.
Specification Summary & Compliance
This shoulder screw features a 5/16"-18 UNC coarse thread with Class 3A fit for high precision and strength. Dimensions include a shoulder diameter of 1/2" with tolerance from -0.004" to -0.002", and shoulder length of 1 1/4" with tolerance from -0.005" to 0.005". It complies with ASME B18.3 specifications and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and adherence to international standards for industrial components.
