S-98511A744 M4 x 20 mm Aluminum Socket Head Screws

Key Features & Benefits at a Glance

• Superior strength-to-weight ratio from 7075 aluminum construction for durable performance without adding unnecessary bulk
• Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
• 3mm hex drive design provides excellent torque transmission and prevents tool slippage during installation
• Fully threaded shank offers maximum grip length and consistent clamping force across the entire fastener
• Coarse 0.7mm pitch threads enable quick installation and reduced cross-threading risk in production environments
• RoHS 3 and REACH compliance guarantees environmental responsibility and regulatory acceptance for global operations
• Standard socket head profile allows compatibility with common hex tools and simplifies maintenance procedures

Professional Applications & Engineering Value

These M4 socket head cap screws deliver exceptional performance in precision applications where weight reduction and corrosion resistance are critical. The 7075 aluminum construction provides high tensile strength comparable to many steel fasteners while eliminating galvanic corrosion concerns in aerospace components, robotics, and electronic enclosures. The Class 3A thread fit with coarse metric threading ensures secure fastening in vibration-prone environments, while the 3mm hex drive accommodates standard tools for efficient assembly line operations. The fully threaded design maximizes contact surface area, distributing load evenly across the entire 20mm length for superior joint integrity in demanding industrial applications.

Specification Summary & Compliance

This metric socket head cap screw features precise M4 x 0.7mm coarse threading with Class 3A thread fit tolerance for superior dimensional accuracy. The fastener maintains a head diameter of 7.22mm with 4mm head height and standard socket head profile. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for industrial applications requiring strict chemical substance control. The right-hand thread direction and fully threaded rod type provide consistent fastening performance across the entire screw length.