S-91239A127 M3 x 30 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength grade and 140,000 psi tensile strength for reliable performance in demanding applications.
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
• Secure and efficient installation with a 2 mm hex drive and rounded button head design, reducing tool slippage and assembly time.
• Optimized thread engagement through partial threading (18 mm thread length) and M3 x 0.5 mm coarse pitch, ensuring strong hold and vibration resistance.
• High hardness and wear resistance with Rockwell C32 rating, minimizing deformation under heavy loads.
• Broad compatibility with ISO 7380 standards and Class 6g thread fit, facilitating easy integration into metric-based assemblies.
• Environmental and regulatory compliance with RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This M3 rounded head hex screw is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion in machinery. The black-oxide alloy steel construction provides a robust barrier against moisture and chemicals, making it ideal for automotive, electronics, and heavy equipment applications. With its Class 10.9 strength and partial threading, it ensures precise clamping force without over-stressing materials, while the hex drive allows for high-torque installation in confined spaces. By meeting ISO 7380 specifications, it guarantees dimensional accuracy and reliability, reducing maintenance needs and downtime in high-stress environments.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including a Class 6g thread fit and ISO 7380 standards for consistent performance. It is manufactured with a metric M3 x 0.5 mm coarse thread and partial threading up to 18 mm, ensuring compatibility with standard components. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms its safety and environmental responsibility, free from hazardous substances, suitable for global industrial use.