S-98511A661 1/4"-20 x 1 1/2" Aluminum Socket Head Screws

Key Features & Benefits at a Glance

• Superior torque transmission with 3/16" hex drive for reliable installation and removal in confined spaces
• Exceptional strength-to-weight ratio from 2024 aluminum construction, ideal for weight-sensitive applications
• Precision thread engagement with Class 3A fit ensuring consistent performance in demanding environments
• Versatile partial threading allowing both secure fastening and smooth shank alignment
• Environmental compliance meeting RoHS 3 and REACH standards for global industrial use
• Optimized coarse threading (1/4"-20 UNC) providing rapid assembly and reduced cross-threading risk
• Standard socket head profile ensuring compatibility with common hex key tools

Professional Applications & Engineering Value

Engineered for precision applications where weight reduction and corrosion resistance are critical, these 2024 aluminum socket head cap screws deliver exceptional performance in aerospace, robotics, and high-end manufacturing. The Class 3A thread fit maintains tight tolerances for vibration-resistant connections, while the partially threaded design provides both secure clamping and alignment flexibility. The coarse UNC threading enables quick assembly in automated production environments, and the 3/16" hex drive accommodates high torque applications without stripping. These industrial aluminum fasteners solve common challenges of material compatibility and regulatory compliance while maintaining structural integrity.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit per UNC specifications, featuring 1/4"-20 coarse threads and 1" minimum thread length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The partially threaded configuration and right-hand thread direction follow industry-standard socket head cap screw manufacturing practices.