S-8077A468 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
- Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding, high-stress applications.
- Precise and secure assembly ensured by the Class 3A thread fit, minimizing backlash and improving joint reliability.
- Enhanced grip and reduced tool slippage from the knurled head and 5/64" hex socket drive for efficient installation.
- Durable, wear-resistant surface provided by the Black Oxide finish, which also adds a sleek, professional appearance.
- Broad compatibility and easy integration with UNC coarse threading, a standard in many industrial assemblies.
- Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and responsible manufacturing.
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to solve critical challenges in precision machinery and industrial equipment. The UNC coarse thread and Class 3A fit provide a secure, vibration-resistant connection, essential for applications like rotating shafts, linkages, and pivoting mechanisms where alignment and minimal play are paramount. The Black Oxide finish on the corrosion-resistant 316 stainless steel substrate significantly enhances durability in moist or chemically aggressive environments, reducing maintenance frequency and downtime. With a Rockwell B79 hardness and high tensile strength, it reliably supports heavy loads and shear forces in automation, aerospace, and marine components, ensuring long-term operational integrity and performance.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a precise Class 3A thread fit for tight tolerances. Key dimensional attributes include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 9/16" (tolerance: -0.005" to 0.005"). The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global supply chains.
