S-8077A116 3/4"-10 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure.
• Enhanced durability and wear resistance from the Black Oxide finish, providing added protection against rust and galling.
• High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for demanding industrial applications.
• Precise thread engagement with Class 3A fit and coarse UNC threads, ensuring reliable fastening and reduced cross-threading risk.
• Secure and easy installation via the knurled socket head with 1/2" hex drive, allowing for high torque application without slippage.
• Accurate alignment and spacing thanks to the 6" shoulder with tight diameter and length tolerances, minimizing component misalignment.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial applications. The 316 Stainless Steel material provides exceptional corrosion resistance, making it suitable for environments exposed to moisture, chemicals, or high temperatures. The Black Oxide finish enhances surface durability, reducing friction and wear during assembly. With a 6" shoulder length and precise Class 3A thread fit, it ensures accurate component positioning in machinery, pivots, and rotating assemblies, preventing misalignment and reducing maintenance downtime. The coarse UNC threads facilitate quick installation in high-vibration settings, while the knurled socket head allows for secure tool engagement, supporting efficient heavy-duty operations in manufacturing, automotive, and aerospace sectors.

Specification Summary & Compliance

This shoulder screw features a 3/4"-10 UNC thread with Class 3A fit for high precision, and a shoulder diameter of 1" with tolerances from -0.004" to -0.002" and length of 6" with tolerances from -0.005" to 0.005". It meets ASME B18.3 specifications for dimensional accuracy and performance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses.