S-91390A655 M10 x 45 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Rockwell C45 hardness alloy steel construction, resisting deformation under high stress
• Precise fine-thread engagement from the M10x1mm extra fine thread and Class 5g6g fit, ensuring vibration resistance and minimal backlash
• Easy installation in confined spaces thanks to the headless design and 5mm hex drive for flush mounting
• Enhanced grip and minimal surface damage from the cup tip, ideal for repeated adjustments on shafts and collars
• Long-term reliability in demanding environments due to compliance with DIN 916/ISO 4029 manufacturing standards
• Safe for regulated industries with full RoHS 3 and REACH compliance, meeting global environmental and safety directives
• Consistent 45mm length and right-hand thread for standardized assembly across metric machinery and equipment

Professional Applications & Engineering Value

This alloy steel set screw is engineered to address critical challenges in precision assembly, where loose components can lead to equipment failure. The extra fine metric thread (M10x1mm) provides a tighter fit and higher number of threads per unit length compared to coarse threads, significantly reducing the risk of loosening under vibration—common in motors, gearboxes, and rotating shafts. The headless hex drive design allows for flush installation, making it ideal for applications with spatial constraints, such as adjustable collars, pulleys, and fixturing devices. Combined with a Rockwell C45 hardness, it offers excellent wear resistance and durability, ensuring that the cup tip maintains its grip without stripping or damaging the contact surface. These features make it a reliable choice for industrial machinery, automotive systems, and precision tooling that demand secure, long-term fastening solutions.

Specification Summary & Compliance

This set screw adheres to Class 5g6g thread fit per ISO standards, ensuring precise dimensional accuracy and interchangeability. Manufactured in compliance with DIN 916 and ISO 4029 specifications, it guarantees consistent performance in metric applications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of hazardous substances and alignment with European regulatory requirements for industrial components.