S-91273A524 5-40 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced durability and wear resistance from Rockwell B55 hardness, extending service life
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads
- Secure and precise assembly with Class 2A thread fit and UNC coarse threads for faster installation
- Non-slip installation thanks to the knurled head texture and 5/64" hex drive
- Improved corrosion protection from the black oxide finish, reducing maintenance needs
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use
Professional Applications & Engineering Value
This 5-40 UNC shoulder screw is engineered to address critical alignment and pivot point challenges in machinery and equipment. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it suitable for applications in humid or corrosive settings such as automotive assemblies, conveyor systems, and electronic enclosures. The black oxide finish adds an extra layer of protection while maintaining a low-profile appearance. With a Class 2A thread fit and coarse UNC threads, it ensures quick and secure fastening, reducing assembly time and minimizing the risk of cross-threading. The shoulder design offers precise spacing and rotational support, ideal for use in bearings, gears, and linkages where exact positioning is crucial for operational efficiency and longevity.
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 of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 3/16" (tolerance: -0.005" to 0.005"). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial applications.
