S-8077A136 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 environments including chemical and marine applications.
• Enhanced durability and wear resistance from the black oxide finish, providing added protection against rust and reducing maintenance needs.
• High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliable performance under heavy mechanical stress.
• Precise alignment and reduced wear due to the 1" shoulder diameter with tight tolerances, minimizing component misalignment in assemblies.
• Secure and efficient installation using the 1/2" hex drive and knurled head, offering improved grip and torque application without slippage.
• Consistent thread engagement with Class 3A fit and coarse UNC threads, enabling faster assembly and reduced risk of cross-threading.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, quality, and environmental responsibility.

Professional Applications & Engineering Value

This 3/4"-10 UNC shoulder screw is engineered to address critical challenges in industrial applications where precision, strength, and corrosion resistance are paramount. Made from 316 stainless steel with a black oxide finish, it excels in environments exposed to moisture, chemicals, and high stress, such as machinery, automotive systems, and conveyor assemblies. The knurled head and hex drive design facilitate secure handling and torque control during installation, reducing assembly time and tool wear. With a 1" shoulder diameter and Class 3A thread fit, it ensures accurate component alignment, minimizing vibration and extending equipment lifespan. Ideal for heavy-duty shoulder bolt uses, this screw supports efficient production while meeting rigorous ASME B18.3 specifications for reliability.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a thread size of 3/4"-10 UNC with Class 3A thread fit for tight tolerances, a shoulder diameter of 1" with tolerance of -0.004" to -0.002", and shoulder length of 1/2" with tolerance of -0.005" to 0.005". It complies with ASME B18.3 manufacturing standards and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations for industrial use.