S-94731A710 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• High tensile strength of 70,000 psi provides reliable performance in demanding applications, preventing fastener failure.
• Precise Class 2A thread fit ensures smooth assembly and secure fastening, minimizing the risk of cross-threading.
• Durable external hex drive and smooth head allows for easy installation and removal with standard tools, speeding up assembly processes.
• Long 1-5/8" shoulder with controlled tolerances offers stable bearing surfaces and accurate alignment for rotating components like gears and pulleys.
• Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance for global supply chains.
• Coarse UNC threads enable quick installation and are less prone to clogging in dirty or debris-filled conditions.

Professional Applications & Engineering Value

This 1/4"-20 shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in automotive, manufacturing, and outdoor equipment where exposure to moisture is common. The external hex drive and smooth head facilitate straightforward installation, reducing assembly time and labor costs. With a shoulder length of 1-5/8" and precise tolerances, it provides a robust pivot point or spacer in assemblies involving rotating parts, such as conveyor systems or robotic arms, ensuring minimal wear and extended service life. The UNC coarse thread design enhances grip and reliability, even in high-vibration environments, supporting efficient and durable industrial fastener solutions.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit for consistent dimensional accuracy and features a UNC thread type with a size of 1/4"-20. The shoulder diameter is 3/8" with a tolerance of -0.004" to 0", and the shoulder length is 1-5/8" with a tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.