S-94128A162 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 strength and durability with alloy steel construction and Rockwell C32 hardness, ensuring long-lasting performance in demanding environments
- Precise alignment and reduced wear thanks to the exact 5/16" shoulder diameter and 3/8" shoulder length with minimal tolerances
- Reliable fastening and easy assembly with Class 3A thread fit and coarse UNC thread, providing secure connections and quick installation
- Space-saving and streamlined design due to the headless and slotted drive style, ideal for compact applications
- Environmental and regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in various industries
- Consistent performance in rotational applications with right-hand thread direction and precise shoulder fit for smooth operation
Professional Applications & Engineering Value
This 1/4"-20 UNC shoulder screw is engineered from high-strength alloy steel to address critical needs in machinery, automation, and assembly systems. The precise shoulder dimensions (5/16" diameter and 3/8" length with tight tolerances) enable accurate component alignment, reducing vibration and wear in pivoting or rotating mechanisms. The Class 3A thread fit and coarse UNC thread ensure robust fastening under high-stress conditions, while the headless slotted design saves space and allows for easy adjustment in confined areas. Ideal for industrial applications such as conveyor systems, robotic arms, and precision instruments, this screw enhances operational reliability and minimizes maintenance downtime, backed by RoHS and REACH compliance for global safety standards.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC thread with Class 3A fit for high precision, along with a shoulder diameter of 5/16" (tolerance: -0.001" to 0") and shoulder length of 3/8" (tolerance: 0" to 0.005") for exact alignment. Manufactured from alloy steel with a hardness of Rockwell C32, it adheres to strict dimensional and performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for industrial use.
