Bolt Thread Pitch Chart

All units are in inches.

Bolt thread pitch chart.

Bolt diameter mm thread pitch mm standard fine extra or super fine. Screw thread designations minor diameter major diameter pitch diameter. Coarse thread is beneficial because they are less likely to cross thread more tolerant in adverse conditions and facilitate quick assembly. Making sure that a nut fits a bolt is actually more complicated that just nuts and bolts.

Bellow are iso din accepted thread pitch charts for commonly found metric fasteners. The metric system s pitch is commonly viewed as the reverse of tpi in that it is the distance measured between two adjacent threads. Thread series cover designations of diameter pitch combinations that are measured by the number of threads per inch tpi applied to a single diameter. Ansi asme external screw thread size chart.

Ansi asme b1 1 1989 r2001 r2001 nomenclature are used. Coarse thread series unc unrc is the most common designation for general application bolts and nuts. Ansi asme internal screw thread size chart. As fastener manufactures we got you covered.

Coarse thread is beneficial because they are less likely to cross thread more tolerant in adverse conditions and facilitate quick assembly. Unified screw threads per. 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. Thread series cover designations of diameter pitch combinations that are measured by the number of threads per inch tpi applied to a single diameter.

Bolt size threads per inch tpi coarse thread unc fine thread unf 0000 160 000 120 00 90 0 80 1. 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. This screw chart is not comprehensive.

Ansi asme b1 1 1989 r2001 r2001 nomenclature are used. Print this page. Which is an acronym for threads per inch. Acceptability criteria are described in ansi asme b1 3m 1992 r2001.

This screw chart is not comprehensive. Screw thread designations minor diameter major diameter pitch diameter. 12 12tpi is the unf standard however 14tpi is far more common in actual use. All units are in inches.

Thread pitch chart unc unf unef un. Coarse thread series unc unrc is the most common designation for general application bolts and nuts. Unified screw threads per. Here is lightning bolt s metric bolt thread pitch chart.