S-91210A798 M4 x 12 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with the 90° cone point design that bites into materials for permanent, reliable positioning
• Exceptional durability and corrosion resistance provided by the zinc-plated alloy steel construction, extending service life in demanding environments
• High-strength performance with a Rockwell C45 hardness rating, ensuring the screw withstands high shear and tensile forces without stripping or deforming
• Effortless installation and removal using a standard 2 mm hex key, saving time on assembly and maintenance lines
• Precise and secure fit guaranteed by the Class 5g6g thread tolerance, minimizing the risk of loosening in dynamic applications
• Broad industrial compatibility with the standard M4 x 0.7mm coarse metric thread, making it a versatile component for various machinery and equipment
• Regulatory peace of mind with full compliance to RoHS 3 and REACH, ensuring safe use in regulated markets and applications

Professional Applications & Engineering Value

This M4 set screw is engineered to solve critical challenges in industrial fastening, where vibration-induced loosening and component slippage can lead to equipment failure. The headless design and 90° cone point work in tandem to create a powerful axial clamping force, digging into the shaft or component to prevent rotational movement. Manufactured from zinc-plated alloy steel, it offers excellent resistance to corrosion and wear, making it ideal for use in automotive assemblies, precision machinery, and electrical enclosures. The coarse thread spacing and Class 5g6g thread fit ensure rapid installation and a secure hold, even in materials with varying hardness. This combination of features provides engineers with a reliable, DIN 914 / ISO 4027 certified solution for set screw applications demanding precision and long-term performance.

Specification Summary & Compliance

This set screw conforms to the dimensional and tolerance requirements of DIN 914 and ISO 4027. The metric thread is specified as M4 x 0.7mm with a Class 5g6g thread fit, ensuring high precision and interchangeability. It is manufactured from alloy steel and features a zinc plating surface treatment. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.