S-91390A652 M8 x 50 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with a cup tip design that bites into surfaces securely, preventing component slippage under vibration
• Superior material strength and durability from alloy steel and Rockwell C45 hardness, ensuring long-term reliability in demanding applications
• Precise and reliable fastening thanks to the fine M8 x 1mm thread with Class 5g6g fit, offering excellent dimensional accuracy and load distribution
• Easy and secure installation with a 4mm hex drive, allowing for high torque application in confined, headless designs
• Broad industrial compatibility as a right-hand thread metric set screw, making it ideal for global machinery and equipment
• Guaranteed compliance and safety by meeting DIN 916/ISO 4029 standards and being fully RoHS 3 & REACH compliant
• Optimized for repetitive use with a robust alloy steel construction that resists wear and maintains performance over time

Professional Applications & Engineering Value

This M8 set screw is engineered from high-strength alloy steel to address critical industrial challenges such as component misalignment and loosening under dynamic loads. The fine thread with a 1mm pitch and Class 5g6g thread fit ensures tight tolerances, reducing the risk of thread stripping and providing consistent clamping force in precision assemblies. The cup tip design concentrates pressure on a small area, enhancing grip on shafts, collars, and pulleys without damaging surfaces. Ideal for industrial applications like machinery, automotive systems, and tooling jigs, this headless set screw with a 4mm hex drive offers easy access in tight spaces, ensuring reliable fastening where space is limited and vibration resistance is paramount.

Specification Summary & Compliance

This set screw features an M8 x 1mm fine thread with a Class 5g6g thread fit, ensuring high dimensional accuracy per ISO metric standards. Manufactured to meet DIN 916 and ISO 4029 specifications, it guarantees consistent performance in mechanical fastening. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental standards for use in various industries.