Each time a prototype body panel comes off of a new tooling it is test fitted on a car so that the marked up prototype can then be used to change and improve.
Gauge of auto sheet metal.
Automotive sheet metal once ran in the range of 18 gauge which was 48 thousandths of an inch thick actually 0 0478 inch.
When doing old car restorations sometimes its simpler to replace an entire panel instead of trying to straighten it or repair rust spots.
Then shop at 1a auto for aftermarket replacement sheet metal for many cars trucks and suvs at a great price.
The restoration pros at auto metal direct produce only premium amd sheet metal parts that are made from proper gauge steel and include all necessary clips tabs flanges bends and seams.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
20 gauge became common in more recent times and this meant 0 0359 inch thick metal still a lot to work with in bumping and metal finishing.
The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel.
Crs 2418 g 18 gauge 24 x 48 cold rolled flat steel.
Sheet steel 2 x 4 18g for cold rolled flat sheet steel part number.
The gauge number 18 holds no relevance to the actual measurements.
The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
Gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet.
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This product requires extra support when packed.