Type A washers come in 2 series: Narrow and Wide. The following table of flat washer dimensions was adapted from ASME B18.21.1, Table 11 for Type A Plain Washers. The following equations can be used to calculate internal thread dimensions for Unified Inch threads: The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 4, "Dimensions of Hex Nuts and Hex Jam Nuts." The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 1-1, "Dimensions of Square and Hex Machine Screw Nuts." This table is used for smaller size hardware. The following table of hex bolt head dimensions was adapted from ASME B18.2.1, Table 2, "Dimensions of Hex Bolts." The following table of hex bolt head dimensions was adapted from ASME B18.6.3, Table 29, "Dimensions of Plain (Unslotted) and Slotted Regular and Large Hex Head Screws." This table is used for smaller size hardware. Where L is the total bolt length and d nom is the nominal bolt diameter. Per ASME B18.2.1, the nominal thread length of inch-series bolts can be found by: The following table of clearance holes was adapted from ASME B18.2.8. In the table above, d nom is nominal diameter in inches and TPI is threads per inch. The following equations can be used to calculate dimensions for Unified Inch threads:
The following table of thread sizes for coarse and fine thread was adapted from ASME B1.1: Size This section contains tables of sizes for inch thread hardware. Bolted Joint Calculator Hardware Sizes: Unified Inch Screw Thread.
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