S-90358A021 M6 x 25 mm Alloy Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from black-oxide surface treatment, ideal for harsh industrial environments
• High tensile strength (140,000 psi) and Rockwell C32 hardness for reliable performance under heavy loads
• Precision Class 5g6g thread fit ensures smooth installation and secure fastening in metric applications
• Ultra-low socket head profile with 4mm hex drive for space-constrained assemblies and easy tool access
• Fully threaded M6x1mm coarse thread design provides maximum grip and uniform load distribution
• Strict dimensional control with length tolerance of ±0.127mm for consistent fit and assembly reliability
• Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

These black-oxide alloy steel socket head cap screws deliver critical advantages in precision engineering applications where space limitations and corrosion resistance are paramount. The ultra-low profile head combined with M6 coarse threading allows for secure fastening in compact machinery, automotive assemblies, and industrial equipment. The Class 5g6g thread fit ensures vibration resistance and prevents loosening in dynamic environments. With 140,000 psi tensile strength, these fully threaded metric screws maintain structural integrity under high stress, while the black-oxide finish provides durable protection against oxidation and wear in demanding conditions.

Specification Summary & Compliance

Manufactured to precise metric thread standards with Class 5g6g thread fit and length tolerance of -0.127mm to +0.127mm. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial fastener applications.