S-98511A152 4-40 x 3/4" Aluminum Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with blue-anodized 7075 aluminum construction for long-lasting performance in harsh environments
• Superior thread engagement with Class 3A UNC coarse threads ensuring precise, vibration-resistant connections
• High-strength aluminum alloy providing excellent strength-to-weight ratio for demanding applications
• Secure hex drive installation with 3/32" socket head preventing cam-out and enabling high torque application
• Full thread coverage along the entire 3/4" length for maximum fastening flexibility and load distribution
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Right-hand threading design for standard installation and compatibility with conventional assembly processes

Professional Applications & Engineering Value

These blue-anodized 7075 aluminum socket head cap screws deliver exceptional engineering value in applications where corrosion resistance, lightweight strength, and precise thread engagement are critical. The Class 3A UNC coarse thread configuration provides superior vibration resistance in dynamic environments, while the 3/32" hex drive socket head ensures reliable installation without stripping. The 7075 aluminum alloy offers remarkable strength comparable to many steels while remaining lightweight, making these fasteners ideal for aerospace, electronics, marine, and precision machinery applications where weight reduction and environmental durability are paramount. The blue anodized surface treatment not only enhances corrosion protection but also provides excellent wear resistance and electrical insulation properties.

Specification Summary & Compliance

This socket head cap screw features precision 4-40 UNC coarse threads with Class 3A fit for superior dimensional accuracy and thread engagement. Manufactured to industry standards with right-hand threading and standard socket head profile. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications. The fastener maintains dimensional consistency with 0.183" head diameter and 0.112" head height for uniform installation performance.