S-90324A094 10-24 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh or washdown environments.
• Superior thread engagement and vibration resistance from the Class 3A thread fit and left-hand thread direction.
• High-strength performance under load with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi.
• Precise component alignment and spacing ensured by the 3/4" shoulder length with tight tolerances.
• Secure, non-slip installation and removal provided by the hex socket drive and knurled head texture.
• Reliable fastening in coarse-thread applications due to the 10-24 UNC thread specification.
• Guaranteed environmental and safety compliance by meeting RoHS 3 and REACH regulations.

Professional Applications & Engineering Value

This 10-24 UNC left hand thread shoulder screw is engineered to solve critical alignment and retention challenges in precision industrial applications. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for machinery in demanding environments like food processing, chemical handling, and outdoor equipment. The 3/4" shoulder length with controlled tolerances acts as a precise pivot, spacer, or bearing surface, preventing axial movement and misalignment in assemblies. The combination of a Class 3A thread fit and left-hand thread direction offers superior resistance to loosening under counter-clockwise rotational forces, which is vital for components subject to reverse torque. The hex socket drive and knurled head ensure a secure grip during installation, even in confined spaces, enhancing assembly efficiency and reliability.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC coarse thread with a Class 3A fit for high precision. The shoulder diameter is 1/4" with a tolerance of -0.004" to -0.002", and the shoulder length is 3/4" with a tolerance of -0.005" to 0.005". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, a tensile strength of 70,000 psi, and a minimum shear strength of 35,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.