DIN 525 Welding Studs With Hexagon Nuts Standard Dimensions And Specifications Click the Button to Download DIN 525 Standard Dimensions and Specifications in PDF Format DIN 525 PDF Steel: 3.6Stainless: – Terminology and Measurements b – Length of the ThreadL – Length of Boltd – the Nominal Diameter of the Threadds – Diameter of the Screw Shank