S-91273A594 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced durability and wear resistance with black oxide finish, extending service life
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads
- Precise alignment and smooth rotation due to standard shoulder fit and knurled head texture
- Secure installation with hex drive using 5/32" drive size, preventing tool slippage
- Accurate thread engagement with Class 2A UNC coarse threads for consistent fastening
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe usage
Professional Applications & Engineering Value
This 5/16"-18 UNC shoulder screw delivers exceptional engineering value in applications requiring precise component positioning and rotational movement. The 18-8 stainless steel material combined with a black oxide finish provides excellent corrosion resistance, making it suitable for machinery, automotive assemblies, and electronic equipment exposed to moisture or chemicals. The socket head with hex drive allows for high-torque installation in confined spaces, while the standard shoulder diameter ensures accurate alignment of moving parts, reducing wear and maintenance costs. Its coarse thread design facilitates quick assembly in industrial production lines, enhancing operational efficiency without compromising on the 70,000 psi tensile strength that prevents failure under dynamic loads.
Specification Summary & Compliance
This shoulder screw features precise Class 2A thread fit with UNC coarse threads (5/16"-18) and a shoulder diameter tolerance of -0.004" to -0.002" for consistent performance. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety. Manufactured with a hardness of Rockwell B55 and minimum shear strength of 35,000 psi, it meets rigorous industrial requirements for reliability and durability.
