S-92845A542 1/4"-20 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Maximum holding power and vibration resistance due to the Class 3A thread fit and coarse UNC thread, ensuring a secure, tight connection.
• Easy and secure installation with the 1/8" hex drive and headless design, allowing for flush mounting in confined spaces.
• Enhanced grip and component retention from the extended tip design, which bites firmly into the mating material.
• Consistent performance under load backed by Rockwell B80 hardness, providing excellent durability and resistance to wear.
• Broad industrial compatibility with compliance to ASME B18.3, RoHS 3, and REACH, meeting strict quality and safety standards.
• Precision-engineered dimensions including a 3/4" length and controlled tip tolerances for reliable, repeatable assembly.

Professional Applications & Engineering Value

This 1/4"-20 UNC set screw is engineered to solve critical challenges in industrial assembly, where vibration resistance and secure component positioning are paramount. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor elements. Its headless design and hex drive allow for installation in tight spaces, while the extended tip and coarse thread provide superior bite into shafts, collars, and pulleys, preventing slippage under high torque or dynamic loads. Commonly used in machinery, automotive systems, and precision equipment, this screw ensures long-term reliability and reduces maintenance needs, aligning with ASME B18.3 standards for consistent performance.

Specification Summary & Compliance

This set screw features a 1/4"-20 UNC coarse thread with a Class 3A thread fit for precise, tight tolerances. Key dimensions include a length of 3/4", tip diameter of 0.156" (with tolerance -0.007" to 0), and tip length of 0.067" (with tolerance -0.005" to 0). It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental safety and industrial reliability.