S-93985A501 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Crafted from 416 Stainless Steel, this shoulder screw offers superior resistance to rust and wear, ideal for harsh industrial environments.
• High Tensile Strength for Heavy-Duty Use: With a tensile strength of 120,000 psi, it ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Precise Shoulder Fit for Accurate Alignment: The 1/2" diameter shoulder with a tight tolerance (-0.001" to 0") provides exact positioning, minimizing assembly errors and improving machine efficiency.
• Easy Installation with Hex Socket Drive: The 1/4" hex drive allows for quick and secure tightening using standard tools, speeding up assembly processes.
• Standard UNC Coarse Threads for Secure Fastening: Featuring 3/8"-16 UNC threads with Class 2A fit, it ensures consistent engagement and vibration resistance in various applications.
• Compliance with Environmental Regulations: RoHS 3 and REACH compliant, making it safe for use in regulated industries and supporting sustainable manufacturing practices.
• Optimized Hardness for Longevity: Rockwell C26 hardness enhances wear resistance, extending the screw's service life in repetitive motion setups.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address common industrial challenges, such as misalignment and component wear in machinery. Made from 416 Stainless Steel, it provides excellent corrosion resistance and strength, crucial for applications in automotive, aerospace, and manufacturing equipment. The precise shoulder diameter of 1/2" with minimal tolerance ensures accurate alignment of parts, reducing downtime and maintenance costs. Its coarse thread and Class 2A thread fit offer reliable fastening in high-vibration environments, while the socket head design with a hex drive simplifies installation in confined spaces. Ideal for use in pivots, guides, and rotating assemblies, this screw enhances operational efficiency and durability in demanding settings.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002", ensuring precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.