S-8077A466 4-40 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 corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
- Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance and a sleek appearance.
- High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) ensures reliable load-bearing in demanding mechanical assemblies.
- Precise Class 3A thread fit for secure, vibration-resistant fastening with minimal risk of loosening in high-stress applications.
- Accurate 2" shoulder length with tight tolerances enables exact positioning and alignment of components, reducing assembly errors.
- Easy installation and removal with a hex socket drive and knurled head, allowing for efficient tool engagement and reduced slippage.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial supply chains.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with a black oxide finish is engineered to address critical challenges in precision machinery, automation systems, and heavy-duty equipment. The 4-40 UNC coarse threads and Class 3A fit provide exceptional grip and resistance to vibration, minimizing maintenance needs in dynamic environments. Its 2" shoulder length with precise tolerances ensures accurate component spacing and alignment, reducing wear and improving operational efficiency. Ideal for use in industrial applications such as conveyor systems, robotic arms, and assembly jigs, this fastener combines high tensile strength and corrosion resistance to extend service life and reduce downtime.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 2" (tolerance: -0.005" to 0.005"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for regulated industries.
