S-91054A494 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 wear resistance with TiCN coating, extending service life in high-friction industrial environments
- Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh or humid conditions
- High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and stress
- Precise shoulder fit with minimal tolerances guarantees accurate alignment and reduced vibration in assemblies
- Class 2A thread fit with UNC coarse threading provides easy installation and secure fastening
- Hex socket drive design allows for high torque application and streamlined assembly processes
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance
Professional Applications & Engineering Value
This 1/4"-20 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel base material offers excellent resistance to rust and oxidation, while the TiCN coating significantly enhances surface hardness and reduces wear in dynamic applications. The precise shoulder diameter and length with tight tolerances ensure minimal play, providing stable pivoting points in machinery, conveyor systems, and precision instruments. With a coarse UNC thread and Class 2A fit, it facilitates quick assembly and disassembly, reducing maintenance downtime. Ideal for use in automation equipment, automotive jigs, and electronic enclosures, this screw delivers reliable performance where exact positioning and long-term reliability are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement and ease of use. Key dimensional specifications include a shoulder diameter of 5/16" with a tolerance of -0.002" to 0", and a shoulder length of 3/8" with a tolerance of 0" to 0.003", ensuring precise fit in demanding applications. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for international industrial use.
