Without knowing what the proprietary letter codes indicate you can still see that this is a size 45 rivet. For example a companies part number might look something like D45AA. It common for individual rivet manufacturers to use their own part numbers that include the rivet size as well as proprietary codes indicating material, rivet type, or other identifying information. The rivets length should equal the thickness of the fastened objects. You will find rivet trade sizes listed in our catalog in () for easy ordering. A size 68 rivet has a 6/32-inch body diameter and an 8/16-inch grip length. Therefore a size 45 rivet is 4/32" (1/8") diameter with a 5/16" maximum grip range. The second number refers to the maximum grip length in 16ths of an inch. The first number refers to the diameter of the rivet in 32nds of an inch. The most common way to specify a rivet size is by 'trade size'. Occasionally you may see rivets referred to by only the diameter and maximum grip. The same rivet would be notated in fractions as: This is a rivet with a 1/8 inch diameter body and a grip range of 0.251 inches to 0.312 inches. In our catalog you will see rivet sizes notated in the form: For details on grip ranges see Using Blind Rivets. It is very important to note that the maximum grip range is NOT the length of the rivet body. The length of the rivet should be equal to the thickness of both objects you are fastening, plus 1.5 times the diameter of the rivet's stem. The head itself is not included in this measurement. The grip range is the minimum and maximum grip the rivet is intended to be used with. The length of a rivet is measured from the underside of the head to the tip of the stem. Grip is the thickness of the material being riveted. Blind rivets are sized by a combination of two important dimensions.
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