S-8077A653 1/4"-20 ASME B18.3 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 316 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments.
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under heavy loads.
- Precise assembly and alignment ensured by the Class 3A thread fit and standard shoulder, reducing installation errors.
- Easy installation and removal with a hex drive socket and knurled head, providing a secure grip and reducing tool slippage.
- Durable coarse UNC threading (1/4"-20) that resists stripping and is suitable for high-vibration applications.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
- Consistent dimensional accuracy with tight shoulder diameter and length tolerances for uniform performance in precision assemblies.
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to address critical challenges in industrial settings, such as component misalignment and corrosion-induced failure. The Black Oxide finish enhances durability in moist or chemically aggressive environments, while the UNC coarse thread and Class 3A fit provide secure fastening in high-vibration machinery, automotive systems, and precision tooling. Its knurled head and hex drive design facilitate quick maintenance, reducing downtime in assembly lines. Ideal for applications requiring a robust shoulder screw with high tensile strength, it ensures long-term reliability in demanding engineering projects.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit and UNC coarse threading standards (1/4"-20), with precise shoulder diameter and length tolerances for consistent performance. Manufactured in compliance with ASME B18.3 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in industrial applications.
