Leaf Chain Chain Number BL6 Chain Overall Width 1.041 in Lacing 3 x 4 Overall Length 50 ft Pitch 3/4 in Tensile Strength 21 500 lb/in Hole Diameter 0.314 in Lubrication SAE 10 to SAE 50 Material Steel Maximum Operating Temperature 300 Degrees F Minimum Operating Temperature 15 Degrees F Pin Outside Diameter 0.312 in Plate Height 0.713 in Plate Thickness 0.125 in Standards ANSI