S-91273A525 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, ensuring long-term reliability in harsh industrial environments.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications.
- Precise alignment and secure positioning due to the 1/8" shoulder diameter and standard shoulder fit, minimizing component movement.
- Easy installation and removal with a hex drive and knurled head, providing enhanced grip and torque application.
- Reliable thread engagement from Class 2A UNC coarse threads, reducing cross-threading risks in high-vibration settings.
- Durable surface protection via black oxide finish, adding wear resistance and a non-reflective appearance.
- Compliance with global regulations including RoHS 3 and REACH, ensuring safe and sustainable use in various industries.
Professional Applications & Engineering Value
This 5-40 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in machinery, automation, and precision equipment. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it ideal for environments exposed to moisture or chemicals. The 1/8" shoulder diameter and 1/4" shoulder length ensure accurate component spacing and rotational stability, preventing misalignment in assemblies. With a black oxide finish and hex drive, it offers both durability and ease of maintenance. These features make it a reliable choice for applications in robotics, automotive systems, and industrial machinery where high tensile strength and long service life are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent performance. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 1/4" (tolerance: -0.005" to 0.005"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
