S-94035A402 5/16"-18 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments.
- Precise component alignment ensured by the 3/8" shoulder diameter with tight tolerances for a secure, slip-free fit.
- High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing capability.
- Easy installation and removal using a standard 3/16" hex key drive, providing a secure grip and reducing tool slippage.
- Durable, coarse 5/16"-18 UNC threads with a Class 2A fit offer excellent engagement and resistance to stripping in high-vibration applications.
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.
Professional Applications & Engineering Value
This socket head shoulder screw is engineered to solve critical alignment and durability challenges in industrial assemblies. The 18-8 Stainless Steel material, combined with a passivated finish, provides exceptional resistance to corrosion and wear, making it ideal for machinery, automotive, and electronics where exposure to moisture and chemicals is common. The precise shoulder diameter acts as a reliable pivot or axle, maintaining accurate positioning of moving parts like gears and pulleys. Its coarse UNC threads and hex drive facilitate quick assembly and disassembly, reducing downtime in production lines. This screw delivers consistent performance in high-stress applications, from conveyor systems to precision instruments, ensuring long-term operational reliability.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit tolerances for consistent engagement and features a 3/8" shoulder diameter with a tight tolerance of -0.001" to 0" for precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries.
