S-8077A114 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 industrial and marine environments.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty, high-stress applications.
• Precise and secure assembly ensured by Class 3A thread fit and UNC coarse threading for reliable engagement and vibration resistance.
• Enhanced durability and wear resistance from the black oxide finish, which also provides a sleek, non-reflective appearance.
• Easy installation and removal with a knurled socket head and 1/2" hex drive, allowing for high-torque application without slippage.
• Accurate alignment and bearing function due to the precision shoulder with tight diameter and length tolerances.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to solve critical challenges in industrial fastening, where components face high loads, corrosive elements, and the need for precise alignment. The black oxide finish enhances corrosion resistance, reducing maintenance in demanding settings like machinery, automotive assemblies, and marine equipment. Its UNC coarse thread and Class 3A fit provide robust, vibration-resistant connections, minimizing loosening in dynamic applications. The knurled socket head with a hex drive ensures secure tool engagement, speeding up assembly in tight spaces. By integrating high tensile and shear strength with a durable shoulder design, this screw supports pivoting, spacing, and rotational movements, making it a versatile choice for engineers seeking reliability and longevity in precision shoulder bolt applications.

Specification Summary & Compliance

This shoulder screw adheres to inch measurement standards with precise dimensions: a 3/4"-10 UNC thread in a Class 3A fit for tight tolerances, and a shoulder diameter tolerance of -0.004" to -0.002" for accurate alignment. It meets ASME B18.3 specifications for dimensional consistency and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and suitable for global industrial use.