S-94731A770 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional durability with 18-8 stainless steel construction, offering excellent corrosion resistance for long-lasting performance in harsh industrial environments.
• High mechanical strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength, ensuring reliable fastening under heavy loads and stress.
• Precise alignment and smooth rotation provided by the 2" shoulder length with standard fit, reducing wear on mating components and simplifying assembly.
• Easy installation and removal with the external hex drive and smooth head texture, allowing for efficient torque application with standard tools.
• Wide compatibility due to the 1/4"-20 UNC coarse thread with Class 2A fit, ensuring secure engagement and interchangeability in various applications.
• Regulatory compliance with RoHS 3 and REACH standards, making it safe for use in regulated industries and global markets.
• Optimized for high-stress applications featuring Rockwell B55 hardness, providing resistance to deformation and maintaining integrity over repeated use.

Professional Applications & Engineering Value

This 1/4-20 UNC shoulder screw is engineered to address common industrial challenges such as misalignment, component wear, and fastener failure. Made from 18-8 stainless steel, it offers superior corrosion resistance, ideal for machinery, automotive assemblies, and electronic enclosures exposed to moisture or chemicals. The 2" shoulder length acts as a precise pivot or spacer, reducing friction and ensuring smooth rotational movement in linkages, bearings, and pivoting mechanisms. With a coarse thread spacing and external hex drive, it allows for quick installation and high torque capability, minimizing downtime in production lines. The right-hand thread and robust design make it a reliable choice for heavy-duty applications where vibration resistance and long-term durability are critical, providing consistent performance and reducing maintenance costs.

Specification Summary & Compliance

This shoulder screw features precise dimensions including a 3/4" thread length and 2" shoulder length with tolerances (e.g., shoulder diameter: -0.004" to 0", shoulder length: -0.005" to 0.005"). It adheres to UNC thread standards with a Class 2A thread fit for consistent engagement and interchangeability. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets environmental and safety regulations, ensuring suitability for global industrial use without hazardous substances.