S-91829A404 5/16"-18 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
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- Enhanced load-bearing capacity thanks to 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under stress.
- Precise component alignment ensured by a smooth, precisely fitted shoulder with controlled diameter and length tolerances.
- Easy installation and removal with a standard socket head and right-hand coarse UNC thread for efficient assembly.
- Consistent thread engagement provided by Class 2A thread fit, reducing the risk of cross-threading and ensuring secure fastening.
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains.
- Durable and long-lasting performance due to the combination of high-grade material, precise manufacturing, and protective finish.
Professional Applications & Engineering Value
This 5/16"-18 UNC shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. Made from 18-8 stainless steel with a passivated finish, it offers excellent resistance to corrosion and oxidation, extending service life in demanding settings like machinery, automotive, and electronics. The socket head design allows for secure tool engagement, while the precise shoulder fit with tight tolerances ensures accurate positioning of moving parts, reducing vibration and improving overall system reliability. Its coarse thread and Class 2A fit facilitate quick installation, making it a go-to choice for industrial applications requiring repeatable, high-strength fastening solutions.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder features precise tolerances: diameter of 3/8" (-0.001" to 0") and length of 5/8" (0" to 0.002"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial uses.
