Bolt Thread Pitch Chart

Acceptability criteria are described in ansi asme b1 3m 1992 r2001.

Bolt thread pitch chart.

All units are in inches. Ansi asme internal screw thread size chart. 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.

Coarse thread series unc unrc is the most common designation for general application bolts and nuts. Unified screw threads per. Which is an acronym for threads per inch. Bolt diameter mm thread pitch mm standard fine extra or super fine.

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 pitch chart unc unf unef un. Ansi asme external screw thread size chart. Coarse thread is beneficial because they are less likely to cross thread more tolerant in adverse conditions and facilitate quick assembly.

Bellow are iso din accepted thread pitch charts for commonly found metric fasteners. 12 12tpi is the unf standard however 14tpi is far more common in actual use. Print this page. Acceptability criteria are described in ansi asme b1 3m 1992 r2001.

Coarse thread series unc unrc is the most common designation for general application bolts and nuts. Here is lightning bolt s metric bolt thread pitch chart. Ansi asme b1 1 1989 r2001 r2001 nomenclature are used. Metric thread pitch table.

Below are the most commonly used thread pitches tpi s for inch bolts and nuts. This screw chart is not comprehensive. Imperial inch bolt thread pitch chart so what is a thread s tpi. Screw thread designations minor diameter major diameter pitch diameter.

As fastener manufactures we got you covered. Bolt size threads per inch tpi coarse thread unc fine thread unf 0000 160 000 120 00 90 0 80 1. In the imperial inch system threads are commonly referred to by measuring an inch and counting how many threads are inside that measurement. All units are in inches.

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 b1 1 1989 r2001 r2001 nomenclature are used. Making sure that a nut fits a bolt is actually more complicated that just nuts and bolts. 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.