S-91273A567 1/4"-20 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 the black oxide finish, reducing maintenance needs.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress.
- Precise alignment and smooth rotation with a 1" shoulder length and standard shoulder fit for consistent assembly.
- Easy installation and removal using the hex drive socket head with knurled texture for improved grip.
- Wide compatibility with UNC coarse threads (1/4"-20) and Class 2A fit for standard applications.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 1/4"-20 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive, and electronics assemblies exposed to moisture or chemicals. The black oxide finish adds an extra layer of protection while reducing friction. With a 1" shoulder length and UNC coarse threads, it ensures precise positioning and secure fastening in pivots, bearings, and linkages. The hex drive socket head with knurling allows for quick tool engagement, streamlining maintenance and reducing downtime in high-volume production environments.
Specification Summary & Compliance
This shoulder screw features Class 2A thread fit and UNC coarse threading for consistent engagement. The shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards. Manufactured to deliver 70,000 psi tensile strength and 35,000 psi shear strength, it meets rigorous industrial requirements for reliability and performance.
