Steel, BAYA/BDGA-6/BDGA-7 /BDGA-8/BGFA/BVGA-5/BVGA-6/BVGA-7 /BYBA/B7WA/MFYA/MGFA/MGHA/MGSA/M7WA Low Clu (.062")(24T) (4.070"ID)(Also Fits BJFA/BVLA/BYFA/B36A/B97A/MDKA/MDPA/ MDRA/MURA/P36A Low Clutch)(ALSO FITS BBTA/P9ZA/PN3A)