S-91273A702 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
• Enhanced durability and wear resistance from the black oxide finish, reducing maintenance needs
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Precise alignment and smooth rotation with a 4-1/2" shoulder length and standard shoulder fit
• Secure, non-slip installation thanks to the knurled head and 5/16" hex drive
• Easy assembly and interchangeability with Class 2A thread fit and UNC coarse threading
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe usage

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery, automation systems, and precision equipment. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, while the black oxide finish adds an extra layer of protection against wear and galling. The 4-1/2" shoulder length ensures precise component positioning, reducing misalignment and vibration in applications like pivots, gears, and rotating assemblies. With a socket head design and hex drive, it allows for easy installation in confined spaces, making it a reliable choice for heavy-duty engineering projects where durability and precision are paramount.

Specification Summary & Compliance

This shoulder screw features a Class 2A thread fit with UNC coarse threading for consistent engagement and ease of assembly. The shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.