Bolt Thread Pitch Chart

Ansi asme b1 1 1989 r2001 r2001 nomenclature are used.

Bolt thread pitch chart. Bolt diameter mm thread pitch mm standard fine extra or super fine. 12 12tpi is the unf standard however 14tpi is far more common in actual use. All units are in inches. Which is an acronym for threads per inch.

The metric system s pitch is commonly viewed as the reverse of tpi in that it is the distance measured between two adjacent threads. Ansi asme external screw thread size chart. Metric thread pitch table. In the imperial inch system threads are commonly referred to by measuring an inch and counting how many threads are inside that measurement.

Unified screw threads per. Imperial inch bolt thread pitch chart so what is a thread s tpi. Bellow are iso din accepted thread pitch charts for commonly found metric fasteners. Making sure that a nut fits a bolt is actually more complicated that just nuts and bolts.

Screw thread designations minor diameter major diameter pitch diameter. Coarse thread series unc unrc is the most common designation for general application bolts and nuts. To the end of the bolt 4 40 9 16 1 2 7 16 3 8 5 16 1 4 10 8 6 4 coarse thread fine thread coarse thread fine thread coarse thread fine thread coarse thread fine thread coarse thread fine thread coarse thread fine thread coarse thread coarse thread coarse thread coarse thread fine thread. This screw chart is not comprehensive.

Unified screw threads per. Thread series cover designations of diameter pitch combinations that are measured by the number of threads per inch tpi applied to a single diameter. Screw thread designations minor diameter major diameter pitch diameter. Coarse thread series unc unrc is the most common designation for general application bolts and nuts.

As fastener manufactures we got you covered. All units are in inches. Thread pitch chart unc unf unef un. Bolt size threads per inch tpi coarse thread unc fine thread unf 0000 160 000 120 00 90 0 80 1.

Ansi asme b1 1 1989 r2001 r2001 nomenclature are used. Acceptability criteria are described in ansi asme b1 3m 1992 r2001. Acceptability criteria are described in ansi asme b1 3m 1992 r2001. Coarse thread is beneficial because they are less likely to cross thread more tolerant in adverse conditions and facilitate quick assembly.

Print this page. Coarse thread is beneficial because they are less likely to cross thread more tolerant in adverse conditions and facilitate quick assembly. This screw chart is not comprehensive. Ansi asme internal screw thread size chart.