S-97345A130 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under load.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies.
• Knurled socket head with 5/64" hex drive provides enhanced grip and prevents tool slippage during installation.
• Durable Rockwell B79 hardness maintains structural integrity and resists wear over repeated use.
• Coarse UNC threading allows for quick assembly and disassembly, improving maintenance efficiency.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical needs in precision machinery, automation systems, and industrial equipment where alignment and pivot points are essential. The 2-56 UNC thread with Class 3A fit provides exceptional dimensional accuracy, reducing the risk of thread stripping and ensuring consistent clamping force. The knurled socket head enhances torque transmission, preventing cam-out and enabling secure fastening in confined spaces. With a 1/8" thread length and coarse thread spacing, it simplifies installation in high-vibration applications, offering reliable performance in sectors like aerospace, medical devices, and electronics manufacturing. Its high tensile and shear strength makes it suitable for dynamic loads, while the corrosion-resistant material ensures longevity in moist or chemically aggressive environments.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precise tolerance. Key dimensions include a thread diameter of 0.086", shoulder diameter of 3/32" with tolerance from -0.004" to -0.002", and shoulder length of 3/32" with tolerance from -0.005" to 0.005". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial applications.