DIFFERENTIAL COVER /TRANSMISSION PAN OIL PAN STUD KITThe Grade 5 studs feature a Bullet Tip design to facilitate installation of both differential covers and transmission oil pans.Both nut and bolt heads feature hex flange head design will not fall back into socket or out of wrench allowing easy installation.Studs are black oxide and bolts/hex nuts cadmium plated to resist corrosion and provide a clean professional appearance.