S-98256A302 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance and lightweight strength from Grade 2 Titanium, ideal for harsh environments and weight-sensitive assemblies.
• Precise component alignment and smooth rotation ensured by the 3/8" shoulder with standard fit and tight diameter tolerance.
• High tensile and shear strength (40,000 psi and 20,000 psi minimum) for reliable performance under significant mechanical loads.
• Secure, non-slip fastening with a knurled socket head and 1/8" hex drive, allowing for high torque application.
• Consistent, reliable threading with Class 3A fit for 10-24 UNC coarse thread, ensuring tight tolerances and vibration resistance.
• Enhanced durability and wear resistance provided by Rockwell B80 hardness, extending the screw's service life.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and environmental safety.

Professional Applications & Engineering Value

This Grade 2 Titanium shoulder screw is engineered to address critical challenges in precision machinery, aerospace, and medical equipment. The 10-24 UNC coarse thread with a Class 3A fit provides exceptional engagement and vibration resistance, reducing the risk of loosening in dynamic applications. The 3/8" shoulder length acts as a precise pivot or spacer, ensuring accurate alignment of moving parts like gears and linkages. Made from titanium, it offers an excellent strength-to-weight ratio and superior corrosion resistance, making it ideal for applications where both performance and material integrity are paramount, such as in industrial automation and high-stress assemblies. The knurled socket head with a 1/8" hex drive allows for secure installation in confined spaces, enhancing overall assembly efficiency and reliability.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC coarse thread with a precision Class 3A thread fit for tight tolerances. The shoulder has a diameter of 1/4" with a tolerance of -0.004" to -0.002" and a length of 3/8" with a tolerance of -0.005" to 0.005". It is manufactured in compliance with ASME B18.3 specifications and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety standards.