S-94731A700 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring longevity in harsh industrial environments.
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for demanding applications.
• Precision Class 2A thread fit guarantees smooth assembly and secure fastening with minimal play.
• External hex drive design allows for easy installation and removal using standard tools, reducing labor time.
• Durable Rockwell B55 hardness resists wear and deformation, maintaining performance under repeated use.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards.
• Optimized shoulder length of 1-9/16" enables precise alignment and spacing in mechanical assemblies.

Professional Applications & Engineering Value

This 1/4-20 UNC shoulder screw is engineered to address critical challenges in machinery and equipment assembly. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, making it ideal for applications in humid or corrosive settings, such as automotive, aerospace, and food processing industries. The coarse UNC thread and Class 2A fit ensure quick, secure fastening with high vibration resistance, reducing the risk of loosening. With a 3/4" thread length and 1-9/16" shoulder length, it provides stable pivoting and alignment for rotating parts like gears and pulleys, minimizing misalignment and wear. The external hex drive simplifies maintenance, while the high shear strength of 35,000 psi supports heavy-duty use, ensuring reliability in precision engineering projects.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A tolerance for precise fit and performance. The shoulder diameter is 3/8" with a tolerance of -0.004" to 0", and the shoulder length is 1-9/16" with a tolerance of -0.005" to 0.005", ensuring dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for regulated industrial applications.