S-91217A078 M3 x 12 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Exceptional holding power provided by the 90° cone point tip, which bites securely into materials to prevent component slippage.
• High-strength performance backed by Rockwell B80 hardness, ensuring durability and resistance to wear under load.
• Precise and reliable fit with Class 6g thread tolerance, offering consistent engagement and reducing the risk of cross-threading.
• Easy and secure installation using a standard 1.5 mm hex key, allowing for high torque application in confined spaces due to the headless design.
• Industry-standard compatibility as it meets DIN 914 / ISO 4027 specifications, ensuring interchangeability and trusted performance in mechanical assemblies.
• Environmental and safety compliance by being RoHS 3 and REACH compliant, making it suitable for regulated industries and global supply chains.

Professional Applications & Engineering Value

This M3 set screw is engineered to solve critical challenges in precision assemblies where space is limited and vibration resistance is paramount. The headless design and hex drive allow for flush mounting and high torque application without protruding parts, making it ideal for securing pulleys, gears, and collars on shafts in machinery and automotive systems. Manufactured from 18-8 Stainless Steel, it offers excellent corrosion resistance, reducing maintenance needs in humid or chemically aggressive environments. The 90° cone point and coarse thread with Class 6g fit ensure a tight, reliable grip that minimizes loosening under dynamic loads, providing long-term stability in industrial set screws applications. This combination of material strength and precise metric threading delivers consistent performance in high-stress engineering contexts.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards with a Class 6g thread fit and M3 x 0.5 mm coarse thread specifications per DIN 914 and ISO 4027. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.