S-98511A643 1/4"-20 x 1" Aluminum Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through blue-anodized 2024 aluminum construction for extended service life in demanding environments
• Precise Class 3A thread fit ensures reliable, vibration-resistant connections in critical assembly applications
• Standard UNC coarse threading provides faster installation and reduced cross-threading risk compared to fine-pitch alternatives
• 3/16" hex drive socket delivers maximum torque transmission with standard Allen wrenches for secure fastening
• Full-threaded 1" length design offers consistent holding power along the entire fastener for uniform load distribution
• RoHS 3 & REACH compliance guarantees environmental regulatory adherence for global manufacturing applications
• Right-hand threading configuration maintains compatibility with standard industrial equipment and assembly processes

Professional Applications & Engineering Value

These blue-anodized 2024 aluminum socket head cap screws deliver exceptional performance in applications where corrosion resistance and lightweight strength are paramount. The 1/4"-20 UNC coarse thread with Class 3A fit provides superior engagement in aluminum and soft material applications, reducing the risk of thread stripping while maintaining precise alignment in machinery assembly, aerospace components, and electronic enclosures. The anodized surface treatment creates a durable barrier against oxidation and chemical exposure, while the hex socket drive enables high-torque installation in confined spaces where wrench clearance is limited. These fasteners solve critical challenges in industries requiring non-magnetic properties, weight reduction, and environmental compliance without compromising mechanical performance.

Specification Summary & Compliance

This socket head cap screw features precision 1/4"-20 UNC coarse threads with Class 3A fit tolerance for superior thread engagement. The fastener maintains fully threaded configuration along its 1" length with right-hand thread direction. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory adherence for international industrial applications. The 3/16" hex drive and standard socket head profile provide consistent interface with common installation tools.