... bolts of other configurations and thread lengths with similar mechanical properties, see Specification A 449.Bolts for general applications, ... diameters greater than 1-1/2" but with similar mechanical properties.Types TYPE 1Medium carbon, carbon boron, or medium ... 4 times the diameter in length)MMetric A325.Connection TypesMechanical Properties SizeTensile, ksiYield, ksiElong. %, minRA %, min1/2 - ...