S-92183A413 5/8"-11 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• Exceptional alignment and secure fastening due to the Class 3A thread fit, minimizing assembly errors and improving joint integrity.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B55 hardness, ensuring reliable performance under heavy loads.
• Secure, non-slip installation provided by the knurled socket head and 5/16" hex drive, allowing for high torque application without tool slippage.
• Versatile shoulder design with precise diameter and length tolerances, acting as a reliable pivot, axle, or spacer in precision assemblies.
• Wide compatibility with 5/8"-11 UNC coarse threads, ensuring easy integration with standard components and reducing sourcing complexity.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to solve critical alignment and durability challenges in demanding industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, extending service life in moist or chemically aggressive environments. Its Class 3A thread fit and precisely machined shoulder ensure minimal radial play, which is vital for maintaining alignment in machinery, pivoting mechanisms, and assembly jigs. The coarse UNC threads facilitate quicker assembly and are less prone to clogging with debris compared to fine threads. The knurled socket head with a 5/16" hex drive offers a secure grip for high-torque installation, reducing the risk of stripping and improving operator safety. Ideal for use in automotive fixtures, conveyor systems, and precision manufacturing equipment, this screw enhances operational reliability and reduces downtime.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision. Key dimensional tolerances include a shoulder diameter tolerance of -0.004" to -0.002" and a shoulder length tolerance of -0.002" to 0.002". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, tensile strength of 70,000 psi, and minimum shear strength of 35,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial components.