S-93985A401 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with 120,000 psi tensile strength and Rockwell C26 hardness, ideal for high-stress industrial environments.
• Precise alignment and reduced wear due to the accurately machined shoulder with a diameter tolerance of -0.001" to 0" and precise fit.
• Reliable fastening in coarse thread applications using the 5/16"-18 UNC thread with Class 2A fit, ensuring secure connections and easy assembly.
• Easy installation and removal with a 3/16" hex socket drive, providing a firm grip and reducing tool slippage.
• Corrosion resistance and longevity from 416 Stainless Steel construction, suitable for harsh operating conditions.
• Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements for safe use.
• Versatile design for multiple setups with a 1/2" thread length and 5/16" shoulder length, accommodating various assembly needs.

Professional Applications & Engineering Value

This 5/16"-18 UNC shoulder screw is engineered from 416 Stainless Steel to address common industrial challenges such as misalignment, vibration loosening, and component wear. The precise shoulder diameter and length ensure accurate positioning in machinery, reducing the need for additional bushings and minimizing maintenance downtime. With a coarse thread and Class 2A thread fit, it offers quick assembly and reliable holding power in applications like automotive systems, conveyor equipment, and precision instruments. The socket head with hex drive allows for tight spaces and high-torque installation, enhancing efficiency in production lines. Its robust tensile strength and corrosion resistance make it a dependable choice for heavy-duty and high-temperature environments, ensuring long-term performance and cost savings.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder features a diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002", ensuring precise assembly. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial use.