S-91144A123 15 mm ID x 28 mm OD DIN 6916, ISO 7416 Structural Washers

Key Features & Benefits at a Glance

• Enhanced Durability: Hardened black steel construction with Rockwell C45 hardness provides superior resistance to wear and deformation in demanding applications.
• Optimal Load Distribution: Generous 28mm outer diameter and 2.7-3.3mm thickness effectively spread clamping force, preventing surface damage and joint failure.
• Precise M14 Fit: 15mm inner diameter ensures a perfect, secure fit on M14 screws, eliminating play and maintaining assembly integrity.
• Guaranteed Interchangeability: Manufactured to DIN 6916 and ISO 7416 standards, ensuring reliable performance and compatibility in global engineering projects.
• Long-Term Corrosion Resistance: The black steel finish offers a protective layer, extending the washer's service life in various industrial environments.
• Regulatory Compliance: Meets RoHS 3 and REACH environmental directives, making it suitable for use in regulated industries and international supply chains.
• Heavy-Duty Reliability: Engineered as a high-performance component capable of withstanding significant static and dynamic loads.

Professional Applications & Engineering Value

This M14 flat washer is engineered to solve critical challenges in heavy-duty industrial applications, such as structural steelwork, heavy machinery assembly, and construction. The hardened black steel material and Rockwell C45 hardness directly address the common problem of fastener failure under high vibrational loads and extreme pressure. By conforming to the stringent dimensional and material requirements of DIN 6916 and ISO 7416 standards, this metric flat washer ensures predictable performance, prevents bolt loosening, and protects connected surfaces from indentation. Its robust design is essential for maintaining the long-term structural integrity of bolted connections, reducing maintenance downtime, and enhancing overall operational safety.

Specification Summary & Compliance

This washer features a 15mm Inner Diameter (ID) for M14 screws, a 28mm Outer Diameter (OD), and a thickness of 2.7-3.3mm. It is manufactured from hardened black steel to the precise dimensional and material specifications of DIN 6916 and ISO 7416. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant as of the latest substance evaluation.