S-97345A551 1/4"-20 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications and reduced failure risk
• Precise Class 3A thread fit ensures tight tolerances and reliable assembly in high-vibration settings
• Knurled socket head with hex drive provides secure grip and easy installation, minimizing tool slippage
• ASME B18.3 compliance guarantees standardized dimensions and interchangeability for consistent performance
• RoHS 3 and REACH compliance meets environmental regulations, ensuring safe use in regulated industries
• Coarse UNC threading enables quick assembly and disassembly, boosting maintenance efficiency

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 316 stainless steel shoulder screw delivers robust performance where corrosion resistance and structural integrity are critical. The 1/4"-20 UNC coarse thread with Class 3A precision fit minimizes loosening under dynamic loads, making it ideal for machinery, automotive assemblies, and precision equipment. Its knurled socket head enhances torque application, while the high tensile and shear strength supports heavy-duty applications like pivots, shafts, and rotating components, reducing downtime and maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to ASME B18.3 standards, with a Class 3A thread fit for precise engagement and UNC coarse threading for efficient assembly. Shoulder diameter and length tolerances ensure consistent performance, while compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms environmental safety. Manufactured from 316 stainless steel, it meets rigorous industrial requirements for durability and reliability.