What thread pitch is 3/8 all thread?
What thread pitch is 3/8 all thread?
Standard Thread Pitch Chart
Coarse Thread Series – UNC | Fine Thread Series – UNF | |
---|---|---|
Nominal Size and Threads Per In. | Basic Pitch Dia. | Basic Pitch Dia. |
3⁄8 – 16 | 0.3344 | 0.3479 |
7⁄16 – 14 | 0.3911 | 0.405 |
1⁄2 – 13 | 0.45 | 0.4675 |
How many threads per inch is UNC?
Threads in the UNC, UNF & UNEF designations have a fixed number of threads per inch (tpi) for a special diameter. For example, 5/16” UNC has 18 tpi, 5/16” UNF has 24 tpi, and 5/16” UNEF has 32 tpi.
How many TPI is 3/8 UNF?
UNF Thread ANSI/ASME B1. 1
Nominal Diameter | Major Diameter Inch | TPI |
---|---|---|
3/8″ – 24 UNF | 0.375 | 24 |
7/16″ – 20 UNF | 0.438 | 20 |
1/2″ – 20 UNF | 0.500 | 20 |
9/16″ – 18 UNF | 0.563 | 18 |
What is the thread count on a 3/8 bolt?
Table 3.
Coarse | Fine |
---|---|
3/8-16 | 3/8-24 |
7/16-14 | 7/16-20 |
1/2-13 | 1/2-20 |
9/16-12 | 9/16-18 |
What is the pitch of a 3/8 16 UNC thread?
0.375
UNC Thread ANSI/ASME B1. 1
Nominal Diameter | Major Diameter Inch | Pitch mm |
---|---|---|
3/8″ – 16 UNC | 0.375 | 1.587 |
7/16″ – 14 UNC | 0.438 | 1.814 |
1/2″ – 13 UNC | 0.500 | 1.954 |
9/16″ – 12 UNC | 0.563 | 2.117 |
What is the difference between UNC and UNF threads?
There are two main kinds of threads in the Unified Screw Thread (UST) Standard—UNF and UNC. UNF is the designation for Unified Fine Threads. Meanwhile, UNC denotes Unified Coarse Threads. UNC threads are a type of coarse thread that has an unbroken series of right-hand turns with uniform geometry.
What thread is 32 TPI?
UNF – Unified National Fine Threads
Major Diameter (in) | Threads per inch (tpi) | Pitch (mm) |
---|---|---|
#8 – 36 | 36 | 0.705 |
#10 – 32 | 32 | 0.794 |
#12 – 28 | 28 | 0.907 |
What does UNC bolt mean?
Unified Coarse Threads
When tapping bolts or threading screws, it’s essential to know the proper thread size. There are two main kinds of threads in the Unified Screw Thread (UST) Standard—UNF and UNC. UNF is the designation for Unified Fine Threads. Meanwhile, UNC denotes Unified Coarse Threads.
What is the correct tap drill size for a 3/8 16 UNC tap?
For example, drill size for a 3/8-16 thread is 0.375 0.0625 (pitch) = 0.312 in.