Light Series Forged Connecting Rods by Dyer's®. 8 Pieces. H-Beam. Length: 6.000". Bushed, 7/16" Cap Screws, 300M Steel. This connecting rods are manufactured from 300m steel forgings, which is 20% stronger than 4340 steel. The unique H Beam design with a double banded cap for ultimate strength to weight ratio.