... heat treatment 3.Features:,high precision,high realibility,low noise. CL24:pitch=38.1mm, pin diameter:13.0mm,plate thickness: 3 ... specifications of silent chain:CL06,CL08,CL10,CL12,CL16,CL20,CL24,Pitch from 9.525mm to 38.1mm...We are also ... chain,roller chain,special chain,sprocket,couplingare our main products. CL24-81W silent chain