Contrete Screw Size: 7.5x42 52--212 Standard: DIN,ANSI,JIS,BS,AS Material: 1020,1020A Finishing: ZP YZP Contrete ScrewModel:NEC0509Name: Concrete ScrewSize: 7.5x42 52--212Standard: DIN,ANSI,JIS,BS,ASPackage: Bulk smallMaterial: 1020,1020AFinishing: ZP YZP Contrete Screw