This is a A-EF6 Clevis Pin PN: EF6Main Description As Following : A-EF6 Clevis Pin P.N: EF6 Diameter: 5/16"Type: Hardened Found in Section & Models : Hay Tool Parts > Flail Mower Parts, Mott MOWER, FLAIL: 48, Mott MOWER, FLAIL: 60, Mott MOWER, FLAIL: 74, Mott MOWER, FLAIL: 88 Associated Items : A-EF386 Also This is An Aftermarket Product And : Diameter: 5/16" Type: Hardened