S-90337A518 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance and durability with 18-8 stainless steel construction and TiCN coating, ideal for harsh industrial environments.
• Precise alignment and reduced component wear due to the exact 1/2" shoulder diameter with tight tolerances (-0.001" to 0") and 5/8" shoulder length.
• High tensile strength of 70,000 psi and Rockwell B55 hardness for reliable performance in heavy-duty applications.
• Easy installation and removal with a low-profile socket head and 1/4" hex drive, allowing for efficient assembly in confined spaces.
• Secure and consistent thread engagement with Class 2A UNC coarse threads, ensuring reliable fastening in various materials.
• Compliance with RoHS 3 and REACH regulations for safe use in global industrial markets without hazardous substances.
• Right-hand thread design for standard assembly processes, reducing installation errors and improving workflow efficiency.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, automation systems, and assembly fixtures. The 18-8 stainless steel material, combined with a TiCN coating, provides excellent resistance to corrosion and wear, extending service life in demanding conditions like manufacturing or outdoor equipment. The precisely machined 1/2" shoulder diameter with minimal tolerances ensures accurate positioning of components, reducing vibration and misalignment issues. With a low-profile socket head and 1/4" hex drive, it allows for easy access in tight spaces, streamlining maintenance and reducing downtime. Ideal for applications in robotics, conveyor systems, and precision instruments, this screw delivers reliable performance where exact fit and long-term reliability are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent engagement and ease of assembly. Dimensions include a shoulder diameter of 1/2" (tolerance: -0.001" to 0") and shoulder length of 5/8" (tolerance: 0" to 0.002"), ensuring precise fits. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for industrial use without restricted substances.