S-91390A153 M8 x 60 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup point design that bites into mating surfaces for secure, vibration-resistant fastening
• Exceptional durability from Rockwell C45 hardened alloy steel construction, resisting wear and deformation under heavy loads
• Precise thread engagement with Class 5g6g thread fit ensuring reliable installation and consistent clamping force
• Easy installation and removal through 4mm hex drive design, providing excellent torque transmission in confined spaces
• Industry-standard compatibility meeting DIN 916/ISO 4029 specifications for reliable interchangeability across applications
• Environmental compliance with RoHS 3 and REACH regulations, ensuring safe use in regulated industrial environments
• Optimized for coarse thread applications with M8 x 1.25mm pitch providing quick assembly and disassembly where fine adjustment isn't required

Professional Applications & Engineering Value

These M8 set screws deliver exceptional engineering value in applications requiring permanent positioning of components on shafts, axles, and rotating assemblies. The alloy steel construction with Rockwell C45 hardness provides the necessary strength to withstand rotational forces and vibration-induced loosening, while the cup point design creates permanent dimples in mating surfaces for maximum resistance to axial movement. The headless configuration and hex drive make these metric set screws ideal for machinery where protruding fastener heads would interfere with operation or present safety hazards. Commonly specified in power transmission systems, gear assemblies, and precision manufacturing equipment, these coarse thread fasteners offer reliable performance in high-stress industrial environments where component slippage could lead to equipment failure or production downtime.

Specification Summary & Compliance

This set screw features M8 x 1.25mm coarse metric thread with Class 5g6g thread fit per ISO standards, ensuring precise dimensional accuracy and proper engagement. Manufactured to DIN 916 and ISO 4029 specifications, these fasteners maintain consistent quality and performance characteristics. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest substance restriction requirements for industrial applications across global markets.