steel twist nail yellow zinc plated steel twist nails head diameter-4mm, shank diameter-2.8mm, length-50mm strength-HRC48 Steel Twist Nail Nail body is twisted , head for round flat , Bottom for pointed bottom .Applicable to some very strong the nail force places, such as drawer, wooden ceiling derrick . Twist Nails series specification options,Material:Iron, carbon steel, stainless steel, Q195, ...