S-93245A683 M20 x 50 mm DIN 913, ISO 4026 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Rockwell C45 hardness alloy steel construction, resisting deformation under high stress.
• Precise and reliable fit ensured by the Class 5g6g thread tolerance, minimizing the risk of loosening in demanding applications.
• Easy and secure installation with a 10 mm hex drive, allowing for high torque application without head interference.
• Optimized for high-load scenarios featuring a coarse M20x2.5 mm thread for rapid assembly and strong engagement in tough materials.
• Flush and unobtrusive fastening due to the headless design, ideal for space-constrained machinery and rotating components.
• Guaranteed quality and interchangeability through compliance with DIN 913 and ISO 4026 international standards.
• Safe for regulated industries as it is fully RoHS 3 and REACH compliant, containing no hazardous substances.

Professional Applications & Engineering Value

This M20 set screw is engineered to address critical challenges in industrial applications where vibration resistance and positional security are paramount. The alloy steel material, hardened to Rockwell C45, provides exceptional shear and tensile strength, preventing failure in high-torque environments like motor shafts, gears, and pulleys. The headless design and flat tip allow it to sit flush against surfaces, making it perfect for securing collars and knobs on rotating assemblies without protruding. The coarse metric thread ensures quick installation and robust holding power in cast iron or steel hubs, while the hex drive facilitates easy maintenance and disassembly. This combination of features delivers reliable, long-term performance in heavy machinery, automotive, and manufacturing equipment.

Specification Summary & Compliance

This metric set screw features an M20 thread size with a 2.5 mm pitch and a 50 mm length. The threads are right-hand and coarse, manufactured to a Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and proper engagement. It is produced in accordance with the DIN 913 / ISO 4026 specification for headless set screws with hex socket. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.