Unf fine thread pitch has more threads per inch than the same diameter bolt in the unc coarse thread pitch. All dimensions are in inches.
Conversion Charts
Sae bolt size chart. There are two general types of sae bolts sometimes referred to as machine screws. M25 thread is tapped thru 1599 mm in length. Print this page. Inside diameter a outside diameter b thickness. Uss and sae washer dimensions. Asm provides fastener specifications sae dimensions including tolerances thread dimensions machine screw specs tap sizes length tolerances.
Skip to content call us today 9732449200. M25 thread is tapped thru 96 mm in length m3 thread is tapped thru 127 mm in length. This section contains tables of sizes for metric thread hardware. M3 and larger thread is tapped thru 254 mm in length. Washer dimensions are for the regular size vs. And for our international readers you likely have more metric wrenches in yours.
Coarse pitch threads are preferred and should be used whenever possible as stated in asme b113m. If you live in the us chances are you have more sae wrenches in your tool box. Stainless steel nylon parts. Nut dimensions are maximums per sae. Whatever the case may be our wrench conversion chart will give you the best fitting standard or metric wrench for a given bolt size. The following table of thread sizes for coarse and fine pitch thread was created using the standard sizes from asme b113m.
Brass aluminum steel parts.
Gallery of Sae Bolt Size Chart
