S-93985A515 4-40 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced corrosion resistance with 416 Stainless Steel construction, ideal for harsh industrial environments.
- Superior strength and durability from 120,000 psi tensile strength and Rockwell C26 hardness, reducing failure risks.
- Precise alignment and reduced wear due to the accurate shoulder fit with 1/8" diameter and 1/4" length tolerances.
- Easy installation and high torque application enabled by the hex socket drive and 5/64" drive size.
- Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring secure fastening in various materials.
- Compliance with environmental regulations including RoHS 3 and REACH, supporting sustainable manufacturing practices.
- Smooth head texture and standard socket profile for clean aesthetics and compatibility with standard tools.
Professional Applications & Engineering Value
This 4-40 UNC shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in machinery assemblies. Crafted from 416 Stainless Steel, it offers excellent resistance to corrosion and high stress, making it suitable for applications in automotive, aerospace, and precision equipment. The socket head hex drive allows for efficient installation in confined spaces, while the precise shoulder fit ensures accurate positioning of parts like gears and pulleys, reducing vibration and extending service life. Its coarse thread design provides quick assembly and strong holding power, ideal for dynamic environments where reliability is critical.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent performance. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.001" to 0") and shoulder length of 1/4" (tolerance: 0" to 0.002"), ensuring precise engineering. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.
