S-91210A833 M8 x 12 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, permanent positioning in assemblies
• Exceptional strength and durability provided by alloy steel construction and a Rockwell C45 hardness rating, resisting wear and deformation under load
• Reliable corrosion resistance from the zinc plating, extending the screw's service life in various industrial environments
• Easy and secure installation with a 4 mm hex drive, allowing for high torque application in confined, headless designs
• Precise and consistent fit ensured by the Class 5g6g thread tolerance, promoting vibration resistance and assembly reliability
• Broad compatibility with standard M8 coarse (1.25mm pitch) threaded components, simplifying sourcing and replacement
• Compliance with major international standards including DIN 914/ISO 4027, ensuring quality, interchangeability, and performance

Professional Applications & Engineering Value

This M8 set screw is engineered to solve critical challenges in industrial assembly and precision machinery. The zinc-plated alloy steel construction provides a robust barrier against corrosion, which is vital for equipment exposed to moisture or harsh operating conditions. Its headless design and hex drive are ideal for applications where space is limited and a flush surface is required. The 90° cone point is specifically designed to create a deep indentation in the shaft or component, preventing axial movement and securing parts like gears, pulleys, and collars against high torque and vibrational forces. This makes it an indispensable metric fastener for maintaining alignment and positional integrity in dynamic systems, from motor assemblies to conveyor systems, ensuring long-term operational reliability.

Specification Summary & Compliance

This set screw features an M8 x 1.25mm coarse metric thread with a Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and proper engagement. It is manufactured to conform to DIN 914 and ISO 4027 specifications, guaranteeing consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.