S-91210A120 M4 x 20 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with a 90° cone point that bites into materials for secure, vibration-resistant fastening in demanding applications.
• Exceptional durability from alloy steel construction and Rockwell C45 hardness, ensuring long-term performance under mechanical stress.
• Easy installation and removal with a 2mm hex drive, allowing precise torque application in confined spaces without head interference.
• Reliable coarse thread spacing (0.7mm pitch) for quick assembly and strong grip in softer materials or where frequent adjustments are needed.
• Precise thread fit (Class 5g6g) that minimizes backlash and ensures consistent engagement, reducing the risk of loosening over time.
• Broad industrial compliance with DIN 914 and ISO 4027 standards, guaranteeing dimensional accuracy and interchangeability.
• Environmental and safety assurance through RoHS 3 and REACH compliance, making it suitable for regulated industries.

Professional Applications & Engineering Value

This M4 set screw is engineered to address common industrial challenges such as component slippage and vibration-induced loosening. The alloy steel material, combined with Rockwell C45 hardness, provides excellent resistance to wear and deformation, making it ideal for high-stress environments like machinery, automotive assemblies, and precision equipment. The 90° cone point design ensures deep penetration into shafts or hubs, creating a firm grip that prevents axial movement. With a 2mm hex drive and coarse metric threads, it offers quick installation in tight spaces while maintaining Class 5g6g thread fit for reliable performance in dynamic applications. This screw is a trusted solution for engineers seeking durability and compliance in industrial set screws.

Specification Summary & Compliance

This set screw adheres to precise metric dimensions: M4 x 0.7mm pitch x 20mm length with Class 5g6g thread fit for consistent tolerance. It meets DIN 914 and ISO 4027 manufacturing standards, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.