S-93339A253 M8 x 26.2 mm Set Screws

Key Features & Benefits at a Glance

• Maximum holding power through Rockwell C39 hardened alloy steel construction for superior resistance to wear and deformation
• Enhanced grip and reduced surface damage with precision 5.5mm ball tip that distributes pressure evenly
• Reliable installation and removal using the 4mm hex drive that prevents stripping and ensures consistent torque application
• Secure fit in coarse thread applications with Class 6g thread fit providing optimal clearance for vibration-resistant assemblies
• Environmental compliance assurance with RoHS 3 (2015/863/EU) exemption 6(a) for safe use in regulated industries
• Versatile right-hand thread design compatible with standard metric components for simplified inventory and assembly processes
• Space-saving headless profile ideal for applications where flush mounting and compact design are critical

Professional Applications & Engineering Value

This M8 x 1.25mm coarse thread set screw delivers exceptional engineering value in demanding industrial environments. The alloy steel composition, hardened to Rockwell C39, provides outstanding shear strength and fatigue resistance, preventing failure in high-vibration machinery and rotating equipment. The ball tip design creates concentrated clamping force while minimizing damage to shaft surfaces, making it ideal for precision positioning of gears, pulleys, and collars. With its Class 6g thread fit, this hex headless screw maintains consistent clamping force in industrial assemblies where loosening could cause operational downtime. The 4mm hex drive ensures secure tool engagement during installation in confined spaces, while RoHS 3 compliance addresses environmental regulations without compromising mechanical performance.

Specification Summary & Compliance

This precision metric set screw features M8 x 1.25mm coarse threads with Class 6g thread fit per ISO metric standards, ensuring proper clearance for reliable fastening. The 26.2mm length and 5.5mm ball tip diameter maintain dimensional accuracy for consistent performance. Manufacturing follows industry standards for alloy steel fasteners, with material hardness certified at Rockwell C39. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(a) for lead as an alloying element in steel, meeting environmental regulations for industrial applications.