Specification Brand : Lamons BulletPoint1 : You will get maximum performance from our gasket materials when you use our gasket installation procedure. [1] clean and inspect the flanges, surface or parts that require gasket BulletPoint2 : Clean or replace your bolts, nuts & washers. Lubricate the bolt's, thread, nuts, washers and the underside of the head with graphite based compound BulletPoint3 : Flat washers are recommended to assure even distribution of the bolting force. Ensure lubricant doesn’t contaminate gasket. Carefully insert the gasket between the mating surfaces BulletPoint4 : The use of a torque wrench is highly recommended. This assures a longer life and leak free performance. Whether an automotive head gasket or a flange gasket, it should be torqued BulletPoint5 : Make four even increment passes in a 12-6-3-9 o'clock pattern sequence. The appropriate stress on the gasket material you use is key to its success which varies depending material chosen Color : Red ItemName : Sterling Seal CRG7237.500.062.300X5 7237 Red Rubber Ring Gasket, 0.84" ID, 1/2" Pipe Size, 1/16" Thick, Pressure Class 300# (Pack of 5) ItemPackageDimensions_Height : 6 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 6 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : sheet-gaskets LowerTemperatureRating : -22 degrees_fahrenheit Manufacturer : Lamons Material1 : Rubber Material2 : copolymer of styrene and butadiene ModelNumber : CRG7237.500.062.300X5 NumberOfItems : 5 PartNumber : CRG7237.500.062.300X5 Size : .50 UnitCount : 5 UnspscCode : 31400000 UpperTemperatureRating : 158 degrees_fahrenheit