S-91210A445 M8 x 40 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with 90° cone point design that bites into mating surfaces for superior resistance to vibration and rotation
• Exceptional durability provided by Rockwell C45 hardened alloy steel construction, ensuring long service life under heavy loads
• Secure installation and removal through 4mm hex drive design, allowing high torque application without head protrusion in confined spaces
• Reliable coarse thread engagement with Class 5g6g tolerance for faster assembly and consistent clamping force in various materials
• Broad industrial compatibility with M8 x 1.25mm metric thread specification, making it ideal for machinery and equipment applications
• Regulatory compliance assurance meeting DIN 914/ISO 4027 standards plus RoHS 3 and REACH environmental directives
• Optimized for right-hand thread applications providing familiar installation direction for efficient assembly processes

Professional Applications & Engineering Value

This alloy steel set screw delivers critical engineering solutions where space constraints and vibration resistance are paramount. The headless hex drive design allows flush mounting in precision assemblies while the 90° cone point creates permanent seating in shafts, collars, and gears. Manufactured to Rockwell C45 hardness, it maintains structural integrity under repetitive stress cycles common in industrial machinery, automotive components, and manufacturing equipment. The M8 coarse thread with Class 5g6g tolerance ensures rapid installation without compromising holding strength, while compliance with DIN 914/ISO 4027 guarantees interchangeability and quality consistency across global supply chains.

Specification Summary & Compliance

This metric set screw features M8 x 1.25mm coarse threads with Class 5g6g thread fit tolerance per ISO standards. The 40mm length with cone point tip and 4mm hex drive conforms to DIN 914 ISO 4027 manufacturing specifications. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while maintaining consistent dimensional accuracy and mechanical performance.