DIN 479 Square Head Bolts Set Screw with Short Dog Point Standard Dimensions and Specifications Click the Button to Download DIN 479 Standard Dimensions and Specifications in PDF Format DIN 479 PDF Steel: 8.8, 10.9Stainless: – Terminology and Measurements l – Length of Boltd – The Nominal Diameter of the Threadk – Head Heighte – The Diameter of the Circumscribed Circles – Head Widtha1 – Length Undercutdp – Diameter of the Ejectorr – Head Radiusk´ – Minimum Size of the Head on the Key l - length of bolt