S-94036A825 M12 x 25 mm ISO 898-1, DIN 6921 Medium-Strength Metric Class 8.8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments, minimizing maintenance needs.
• High durability with Rockwell C22 hardness provides excellent wear resistance and long-term structural integrity.
• Flanged head design eliminates the need for a separate washer, distributing load evenly and speeding up assembly.
• Precise Class 6g thread fit ensures smooth engagement and secure fastening, reducing installation time and improving joint reliability.
• Coarse thread pitch (1.75mm) allows for quicker installation and better performance in materials prone to vibration or thermal expansion.
• Compliance with ISO 898-1 and DIN 6921 standards guarantees consistent quality and interchangeability for global engineering projects.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this M12 hex head screw addresses critical challenges in machinery assembly, structural frameworks, and automotive components. The zinc yellow-chromate plated steel construction provides a robust barrier against rust and chemical exposure, ideal for outdoor or high-moisture settings. With a partially threaded design and flange feature, it offers controlled clamping force and eliminates washer requirements, streamlining installation in tight spaces. The Class 8.8 strength grade and coarse metric thread ensure secure, vibration-resistant connections, reducing downtime in dynamic operational environments. This screw is a reliable choice for engineers seeking durable, corrosion-resistant fasteners that meet stringent international standards like ISO 898-1.

Specification Summary & Compliance

This fastener adheres to ISO 898-1 and DIN 6921 specifications, with a Class 6g thread fit ensuring dimensional accuracy for metric coarse threading (M12x1.75). It features a partially threaded shank with a minimum thread length of 19 mm and a total length of 25 mm, complemented by an external hex drive for easy torque application. The zinc yellow-chromate plating on steel provides RoHS and REACH compliance, supporting environmental safety in industrial use. Manufactured to Class 8.8 strength standards, it delivers consistent performance in applications requiring high tensile strength and corrosion resistance.