S-94328A965 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 load-bearing capacity with 140,000 psi tensile strength for reliable performance in demanding applications
- Enhanced corrosion resistance from the black oxide finish, extending service life in harsh industrial environments
- Precise alignment and reduced wear due to the Class 3A thread fit and standard shoulder fit for minimal play
- Easy installation and removal with the hex drive and knurled low-profile socket head, improving assembly efficiency
- Excellent durability from Rockwell C30 hardness alloy steel, resisting deformation under heavy loads
- Versatile coarse UNC threading (5/16"-18) for quick assembly and disassembly in various machinery setups
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in rotating assemblies. The black oxide finish provides a protective layer against rust and corrosion, making it ideal for environments exposed to moisture or chemicals. With a 1/2" shoulder length and 3/8" shoulder diameter, it ensures precise spacing and support in machinery like conveyor systems, automotive fixtures, and robotic arms. The coarse UNC thread and right-hand thread direction facilitate quick adjustments, while the low-profile socket head with knurling offers secure gripping for torque applications. By combining high tensile strength and hardness, this screw reduces maintenance downtime and enhances the longevity of precision equipment.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit for tight tolerances and features a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005" for consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured from alloy steel with a tensile strength of 140,000 psi, it is suitable for high-stress applications requiring reliability and durability.
