S-8077A514 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Enhanced durability and wear resistance from the Black Oxide finish, providing added protection and a sleek, non-reflective appearance.
• High mechanical strength offering a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under heavy loads.
• Precise and secure fastening ensured by the Class 3A thread fit and UNC coarse threading, reducing the risk of cross-threading and loosening.
• Easy installation and removal with a hex socket drive (5/64") and knurled head, allowing for better grip and torque application with standard tools.
• Accurate component alignment due to the precisely machined shoulder with tight diameter and length tolerances.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe and sustainable use in global markets.

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to address critical challenges in precision assembly and machinery. The Black Oxide finish not only enhances corrosion resistance but also reduces galling and friction during installation, which is vital in high-cycle manufacturing equipment. The UNC coarse thread and Class 3A fit provide a secure, vibration-resistant connection, minimizing maintenance downtime in applications like rotating shafts, linkages, and bearing mounts. Its robust 70,000 psi tensile strength and precisely toleranced shoulder ensure reliable alignment and load distribution, making it ideal for industrial automation, aerospace components, and medical devices where precision and durability are paramount. By combining high-strength materials with a compliant surface treatment, this screw delivers long-term reliability in demanding environments.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision and consistent performance. Key dimensional tolerances include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 1 1/4" (tolerance: -0.005" to 0.005"). It 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 use in regulated industries worldwide.