S-91273A569 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 frequency.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibrations.
- Precise alignment and smooth rotation thanks to the standard shoulder fit and knurled head for secure handling.
- Easy installation and removal with a hex drive socket head, minimizing tool slippage and assembly time.
- Consistent thread engagement with UNC coarse threads and Class 2A fit, reducing cross-threading risks.
- Compliance with RoHS and REACH regulations for safe, environmentally responsible use in global markets.
Professional Applications & Engineering Value
This 1/4"-20 shoulder screw is engineered to address critical alignment and load-bearing challenges in precision assemblies. Made from 18-8 stainless steel with a black oxide finish, it resists corrosion and oxidation, extending service life in machinery, automotive, and electronics applications. The UNC coarse thread and 1-1/2" shoulder length provide stable pivoting and spacing, minimizing component wear. Its socket head with hex drive allows for tight installations in confined spaces, while the knurled texture enhances grip during manual adjustments. Ideal for securing rotating parts and guiding linear motion, this screw ensures reliable performance in high-stress environments.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC thread with Class 2A fit for precise tolerance, along with a shoulder diameter of 1/4" and length of 1-1/2" within specified tolerances. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring adherence to international environmental and safety standards. Manufactured to deliver 70,000 psi tensile strength and 35,000 psi shear strength, it supports rigorous industrial applications with consistent quality.
