S-93339A064 M4 x 8 mm Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 6g thread fit ensuring precise, secure fastening in demanding applications
• Exceptional durability and corrosion resistance from high-grade alloy steel construction with Rockwell C39 hardness
• Easy installation and removal with 2mm hex drive design providing reliable torque transfer without head protrusion
• Enhanced component protection through ball tip design that minimizes surface damage during tightening
• Reliable coarse thread engagement with M4 x 0.7mm metric thread for quick assembly in various materials
• Environmental compliance assurance with RoHS 3 certification for use in regulated industries
• Versatile right-hand threading compatible with standard industrial equipment and procedures

Professional Applications & Engineering Value

This M4 set screw delivers critical engineering value through its alloy steel construction and precision Class 6g thread fit, specifically engineered to solve common industrial fastening challenges. The ball tip design distributes pressure evenly, preventing damage to shaft surfaces while maintaining superior clamping force. With Rockwell C39 hardness, it resists wear in high-vibration environments, making it ideal for permanent positioning applications in machinery, automotive components, and precision equipment. The hex headless configuration allows for flush mounting in confined spaces, while the coarse metric thread ensures rapid installation and reliable performance in both soft and hard materials. This combination addresses the critical need for durable, precision fasteners that maintain position under extreme operational stresses.

Specification Summary & Compliance

This metric set screw features M4 x 0.7mm coarse threading with Class 6g thread fit per ISO standards, ensuring precise dimensional accuracy. The 8mm length and 2.5mm ball tip diameter provide consistent performance across applications. Manufactured from alloy steel with Rockwell C39 hardness, it meets rigorous industrial specifications. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel, confirming its suitability for regulated environments and international quality standards.