Set: 6pcs Supplied without screws. The forged blank is quenched and tempered with HRC33-38 hardness. After this process the connecting rod are shot peened. The Magnaflux-method is used to ensure that no cracks are allowed in any part. For the metal macro structure of the connecting rod section, its fibers should flow along with the central line of the connecting rod and conform to the appearance. Material: 40CrNiMoA (4340) Supplied in sets with weight ratio +/- 1.500gram The weight printed on the connecting rods is an average weight for the unique set. The rods are H-profile, with same width as original, suitable for very high cylinder pressure / power output. Price per set.