S-97768A258 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Crafted from 18-8 Stainless Steel with a Black Oxide finish for reliable performance in demanding environments, reducing maintenance and replacement costs.
• Superior Thread Reliability: Features a Class 3A thread fit for precise, secure fastening, minimizing the risk of loosening and ensuring long-term joint integrity.
• High Tensile & Shear Strength: With a 70,000 psi tensile strength and 35,000 psi minimum shear strength, this screw handles heavy loads and high-stress applications with confidence.
• Secure and Efficient Installation: The knurled socket head and hex drive design provide excellent grip and torque transmission, preventing tool slippage and speeding up assembly.
• Precision Shoulder for Accurate Alignment: The 1-inch shoulder with controlled diameter and length tolerances ensures precise component positioning and smooth rotational movement.
• Broad Regulatory Compliance: Meets ASME B18.3 specifications and is compliant with RoHS 3 and REACH regulations, ensuring suitability for global markets and sensitive applications.
• Optimized for Coarse Thread Applications: The 10-24 UNC coarse thread enables quick assembly and provides strong holding power in a variety of materials.

Professional Applications & Engineering Value

This 10-24 UNC thread shoulder screw is engineered to solve critical alignment and durability challenges in industrial assemblies. The 18-8 Stainless Steel construction, enhanced by a Black Oxide finish, provides excellent resistance to corrosion and wear, making it ideal for machinery, automotive, and electronic applications exposed to harsh conditions. The precision-machined shoulder acts as a pivot, bearing surface, or locator, ensuring components like gears, pulleys, and linkages are perfectly aligned, which reduces wear and prevents misalignment failures. The Class 3A thread fit and knurled socket head guarantee secure, vibration-resistant fastening, while the high tensile and shear strength supports heavy-duty operational loads, enhancing the overall reliability and service life of your equipment.

Specification Summary & Compliance

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