Spiral fluted taps are cutting tools designed for threading holes in materials like metal. Their helical flutes help efficiently remove chips from the hole, making them ideal for blind holes where chip evacuation is critical. These taps are suitable for softer metals and materials that tend to form long chips. The spiral design also reduces friction and improves surface finish. With their ability to prevent thread damage and enhance precision, spiral fluted taps are widely used in industries requiring high-quality threaded holes.
| Tap specifications | External Nominal Size | ||||||||
| Size(M) | Pitch | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | lk Square length | TYPE | FLUTES |
| M2.0 | 0.4 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.2 | 0.45 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.5 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.6 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M3 | 0.5 | 49 | 10 | 18 | 4 | 3.2 | 6 | 2 | 3 |
| M4 | 0.7 | 55 | 12 | 20 | 5 | 3.2 | 6 | 2 | 3 |
| M5 | 0.8 | 64 | 15 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| M6 | 1 | 66 | 18 | 28 | 6 | 4.5 | 7 | 2 | 3 |
| M8 | 1.25 | 70 | 22 | 6.2 | 5 | 8 | 3 | 3 | |
| M10 | 1.5 | 75 | 22 | 7 | 5.5 | 8 | 3 | 3 | |
| M12 | 1.75 | 82 | 29 | 8.5 | 6.5 | 9 | 3 | 3 | |
| M14 | 2 | 88 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| M16 | 2 | 95 | 32 | 12.5 | 10 | 13 | 3 | 3 | |
| M18 | 2.5 | 100 | 37 | 15 | 12 | 15 | 3 | 3 | |
| M20 | 2.5 | 105 | 37 | 15 | 12 | 15 | 3 | 4 | |
| M22 | 2.5 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| M24 | 3 | 120 | 45 | 19 | 15 | 18 | 3 | 4 | |
| M26 | 3 | 125 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M27 | 3 | 130 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M30 | 3.5 | 135 | 48 | 23 | 17 | 20 | 3 | 4 | |
| Size(UN) | Nominal diameter | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | lk Square length | TYPE | FLUTES |
| No.2-56UNC | 2.184 | 42 | 9.5 | 15 | 3 | 2.5 | 5 | 2 | 2 |
| No.3-48UNC | 2.515 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.4-40UNC | 2.845 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.6-32UNC | 3.505 | 48 | 13 | 20 | 4 | 3.2 | 6 | 2 | 3 |
| No.8-32UNC | 4.166 | 52 | 13 | 21 | 5 | 4 | 7 | 2 | 3 |
| No.10-24UNC | 4.826 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| No.12-24UNC | 5.486 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| 1/4-20UNC | 6.350 | 62 | 19 | 30 | 6 | 4.5 | 7 | 2 | 3 |
| 5/16-18UNC | 7.938 | 70 | 22 | 6.1 | 5 | 8 | 3 | 3 | |
| 3/8-16UNC | 9.525 | 75 | 24 | 7 | 5.5 | 8 | 3 | 3 | |
| 7/16-14UNC | 11.112 | 80 | 25 | 8 | 6 | 9 | 3 | 3 | |
| 1/2-13UNC | 12.700 | 85 | 29 | 9 | 7 | 10 | 3 | 3 | |
| 9/16-12UNC | 14.288 | 90 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| 5/8-11UNC | 15.875 | 95 | 32 | 12 | 9 | 12 | 3 | 3 | |
| 3/4-10NUC | 19.050 | 105 | 37 | 14 | 11 | 14 | 3 | 4 | |
| 7/8-9UNC | 22.225 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| 1-8UNC | 25.400 | 125 | 45 | 20 | 15 | 18 | 3 | 4 |
Straight flute taps are general-purpose tools used for threading both through and blind holes. Unlike spiral taps, they donât direct chips out but hold them within the flutes, making them ideal for materials that produce short chips, like cast iron and brass. Made from high-speed steel or carbide, they provide consistent performance in hand tapping or machine operations. Straight flute taps are versatile and can be used in various materials, though they work best in hard or brittle ones, offering precise, clean threads in low-speed applications.
| Tap specifications | External Nominal Size | ||||||||
| Size(M) | Pitch | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | Lk Square length | TYPE | FLUTES |
| M1 | 0.20 | 36 | 6 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.2 | 0.25 | 36 | 6.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.4 | 0.30 | 36 | 9.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.6 | 0.35 | 36 | 9.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.7 | 0.35 | 36 | 13 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.8 | 0.35 | 38 | 13 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.0 | 0.40 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M3 | 0.50 | 48 | 11 | 18 | 3.2 | 2.5 | 5 | 1 | 3 |
| M4 | 0.70 | 53 | 13 | 21 | 4 | 4 | 6 | 1 | 3 |
| M5 | 0.80 | 59 | 16 | 25 | 5 | 4 | 6 | 1 | 3 |
| M6 | 1.00 | 66 | 19 | 30 | 6.3 | 5 | 8 | 1 | 3 |
| M7 | 1.00 | 66 | 19 | 30 | 7.1 | 5.6 | 7 | 1 | 4 |
| M8 | 1.25 | 72 | 22 | 8 | 6.3 | 8 | 2 | 4 | |
| M10 | 1.50 | 80 | 24 | 10 | 8 | 9 | 2 | 4 | |
| M12 | 1.75 | 89 | 29 | 9 | 7.1 | 10 | 3 | 4 | |
| M14 | 2.00 | 95 | 30 | 11.2 | 9 | 12 | 3 | 4 | |
| M16 | 2.00 | 102 | 32 | 12.5 | 10 | 13 | 3 | 4 | |
| M18 | 2.50 | 112 | 37 | 14 | 11.2 | 14 | 3 | 4 | |
| M20 | 2.50 | 112 | 37 | 14 | 11.2 | 14 | 3 | 4 | |
| M22 | 2.50 | 118 | 38 | 16 | 12.5 | 16 | 3 | 4 | |
| M24 | 3.00 | 130 | 45 | 18 | 14 | 18 | 3 | 4 | |
| M27 | 3.00 | 135 | 45 | 20 | 16 | 20 | 3 | 4 | |
| M30 | 3.50 | 138 | 48 | 20 | 16.5 | 20 | 3 | 4 | |
Spiral point taps, also known as "gun taps" are designed for efficient threading in through holes. Their cutting edges push chips forward, reducing clogging and ensuring smooth chip removal. This design allows faster tapping speeds and prevents chip damage. Made from high-speed steel or carbide, spiral point taps work well in materials like steel, aluminum, and brass. They're ideal for mass production due to their durability and ability to handle high-speed operations, offering a clean and precise finish with minimal downtime.
| Tap specifications | External Nominal Size | ||||||||
| Size(M) | Pitch | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | Lk Square length | TYPE | FLUTES |
| M1 | 0.2 | 36 | 6 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.2 | 0.25 | 36 | 6.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.4 | 0.3 | 36 | 9.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.6 | 0.35 | 36 | 9.5 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.7 | 0.35 | 36 | 13 | 3 | 2.5 | 5 | 1 | 2 | |
| M1.8 | 0.35 | 38 | 13 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.0 | 0.4 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.2 | 0.45 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.5 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.6 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M3 | 0.5 | 49 | 10 | 18 | 4 | 3.2 | 6 | 2 | 3 |
| M4 | 0.7 | 55 | 12 | 20 | 5 | 3.2 | 6 | 2 | 3 |
| M5 | 0.8 | 64 | 15 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| M6 | 1 | 66 | 18 | 28 | 6 | 4.5 | 7 | 2 | 3 |
| M8 | 1.25 | 70 | 22 | 6.2 | 5 | 8 | 3 | 3 | |
| M10 | 1.5 | 75 | 22 | 7 | 5.5 | 8 | 3 | 3 | |
| M12 | 1.75 | 82 | 29 | 8.5 | 6.5 | 9 | 3 | 3 | |
| M14 | 2 | 88 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| M16 | 2 | 95 | 32 | 12.5 | 10 | 13 | 3 | 3 | |
| M18 | 2.5 | 100 | 37 | 15 | 12 | 15 | 3 | 3 | |
| M20 | 2.5 | 105 | 37 | 15 | 12 | 15 | 3 | 4 | |
| M22 | 2.5 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| M24 | 3 | 120 | 45 | 19 | 15 | 18 | 3 | 4 | |
| M26 | 3 | 125 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M27 | 3 | 130 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M30 | 3.5 | 135 | 48 | 23 | 17 | 20 | 3 | 4 | |
| Size(UN) | Nominal diameter | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | lk Square length | TYPE | FLUTES |
| No.2-56UNC | 2.184 | 42 | 9.5 | 15 | 3 | 2.5 | 5 | 2 | 2 |
| No.3-48UNC | 2.515 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.4-40UNC | 2.845 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.6-32UNC | 3.505 | 48 | 13 | 20 | 4 | 3.2 | 6 | 2 | 3 |
| No.8-32UNC | 4.166 | 52 | 13 | 21 | 5 | 4 | 7 | 2 | 3 |
| No.10-24UNC | 4.826 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| No.12-24UNC | 5.486 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| 1/4-20UNC | 6.350 | 62 | 19 | 30 | 6 | 4.5 | 7 | 2 | 3 |
| 5/16-18UNC | 7.938 | 70 | 22 | 6.1 | 5 | 8 | 3 | 3 | |
| 3/8-16UNC | 9.525 | 75 | 24 | 7 | 5.5 | 8 | 3 | 3 | |
| 7/16-14UNC | 11.112 | 80 | 25 | 8 | 6 | 9 | 3 | 3 | |
| 1/2-13UNC | 12.700 | 85 | 29 | 9 | 7 | 10 | 3 | 3 | |
| 9/16-12UNC | 14.288 | 90 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| 5/8-11UNC | 15.875 | 95 | 32 | 12 | 9 | 12 | 3 | 3 | |
| 3/4-10NUC | 19.050 | 105 | 37 | 14 | 11 | 14 | 3 | 4 | |
| 7/8-9UNC | 22.225 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| 1-8UNC | 25.400 | 125 | 45 | 20 | 15 | 18 | 3 | 4 |
The main features of Minor Diameter Extrusion Taps are that they form threads through plastic deformation without producing chips, eliminating cleaning issues during machining. Since the metal fibers are not cut, the resulting threads are stronger and more precise, especially in the minor diameter. The threads formed by extrusion are smoother, reducing surface roughness, and the tool has a longer lifespan compared to cutting taps. It is ideal for working with soft materials like aluminum and copper, but not suitable for brittle materials.
| Nominal Size | Tolerance | L Overall length | l Thread Length | Ds Shank diameter | K Square size | Lk Square length | TYPE |
| M0.8x0.2 | 38 | 2.5 | 3 | 2.5 | 5 | 1 | |
| M0.9x0.225 | 38 | 2.5 | 3 | 2.5 | 5 | 1 | |
| M1x0.25 | 38 | 3 | 3 | 2.5 | 5 | 1 | |
| M1.2x0.25 | 38 | 3 | 3 | 2.5 | 5 | 1 | |
| M1.4x0.3 | 38 | 5 | 3 | 2.5 | 5 | 1 | |
| M1.6x0.35 | 38 | 5.5 | 3 | 2.5 | 5 | 1 | |
| M1.7x0.35 | 38 | 5.5 | 3 | 2.5 | 5 | 1 | |
| M1.8x0.35 | 38 | 5.5 | 3 | 2.5 | 5 | 1 | |
| M1.0x0.25 | 1 /0.5 Pitch | 38 | 3 | 3 | 2.5 | 5 | 1 |
| M1.2x0.25 | 1 /0.5 Pitch | 38 | 3 | 3 | 2.5 | 5 | 1 |
| M1.4x0.30 | 1 /0.5 Pitch | 38 | 5 | 3 | 2.5 | 5 | 1 |
| M1.6x0.35 | 1 /0.5 Pitch | 38 | 5.5 | 3 | 2.5 | 5 | 1 |
Roll taps, also known as forming taps, create threads by displacing material rather than cutting it. This process involves plastic deformation, which eliminates the production of chips, making post-machining cleaning unnecessary. Since the materialâs structure remains undisturbed, the threads produced are both stronger and more accurate, especially in the minor diameter. The thread surfaces are smoother, which helps reduce friction and surface roughness. Roll taps generally last longer than cutting taps and are particularly suited for softer materials like aluminum and copper. However, they are not recommended for brittle materials that could crack under pressure.
| Nominal Size | Tolerance | L Overall length | l Thread Length | Ds Shank diameter | K Square size | Lk Square length | TYPE |
| M2.0x0.4 | 43 | 16 | 3 | 2.5 | 5 | 2 | |
| M2.5x0.45 | 46 | 16 | 3 | 2.5 | 5 | 2 | |
| M2.6x0.45 | 46 | 24 | 3 | 2.5 | 5 | 2 | |
| M3x0.5 | 49 | 16 | 4 | 3.2 | 6 | 2 | |
| M4x0.7 | 55 | 24 | 5 | 4 | 7 | 2 | |
| M5x0.8 | 64 | 26 | 5.5 | 4.5 | 7 | 2 | |
| M6x1.0 | 66 | 26 | 6 | 4.5 | 7 | 2 | |
| M8x1.25 | 70 | 18 | 6.2 | 5 | 8 | 3 | |
| M10x1.5 | 75 | 18 | 7 | 5.5 | 8 | 3 | |
| M12x1.75 | 82 | 23 | 8.5 | 6 | 9 | 3 | |
| M14x2.0 | 88 | 25 | 10.5 | 8 | 11 | 3 | |
| M16x2.0 | 95 | 27 | 12.5 | 10 | 13 | 3 |
| Nominal Size | Tolerance | L Overall length | l Thread Length | Ds Shank diameter | K Square size | Lk Square length | TYPE |
| 0-80UNF | 38 | 7 | 3 | 2.5 | 5 | 1 | |
| 1-72UNF | 38 | 8 | 3 | 2.5 | 5 | 1 | |
| 2-56UNC | 42 | 8 | 3 | 2.5 | 5 | 1 | |
| 4-40UNC | 44 | 9 | 3 | 2.5 | 5 | 1 | |
| 8-32UNC | 52 | 13 | 5 | 4 | 7 | 1 | |
| 10-24UNC | 60 | 16 | 5.5 | 4.5 | 7 | 1 | |
| 10-32UNC | 60 | 16 | 5.5 | 4.5 | 7 | 1 | |
| 1/4-UNC | 62 | 19 | 6 | 4.5 | 7 | 1 |
Minor diameter cutting taps create threads by removing material, generating chips that require cleaning during machining. This process can affect the strength of the threads since it cuts through metal fibers. Although the threads may not be as smooth as those made by extrusion taps, cutting taps offer precise threading and are versatile for various materials, including both soft and brittle metals.
| Tap specifications | External Nominal Size | ||||||||
| Size(M) | Pitch | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | Lk Square length | TYPE | FLUTES |
| M2.0 | 0.4 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.2 | 0.45 | 43 | 15 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.5 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M2.6 | 0.45 | 46 | 21 | 3 | 2.5 | 5 | 1 | 2 | |
| M3 | 0.5 | 49 | 10 | 18 | 4 | 3.2 | 6 | 2 | 3 |
| M4 | 0.7 | 55 | 12 | 20 | 5 | 3.2 | 6 | 2 | 3 |
| M5 | 0.8 | 64 | 15 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| M6 | 1 | 66 | 18 | 28 | 6 | 4.5 | 7 | 2 | 3 |
| M8 | 1.25 | 70 | 22 | 6.2 | 5 | 8 | 3 | 3 | |
| M10 | 1.5 | 75 | 22 | 7 | 5.5 | 8 | 3 | 3 | |
| M12 | 1.75 | 82 | 29 | 8.5 | 6.5 | 9 | 3 | 3 | |
| M14 | 2 | 88 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| M16 | 2 | 95 | 32 | 12.5 | 10 | 13 | 3 | 3 | |
| M18 | 2.5 | 100 | 37 | 15 | 12 | 15 | 3 | 3 | |
| M20 | 2.5 | 105 | 37 | 15 | 12 | 15 | 3 | 4 | |
| M22 | 2.5 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| M24 | 3 | 120 | 45 | 19 | 15 | 18 | 3 | 4 | |
| M26 | 3 | 125 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M27 | 3 | 130 | 45 | 20 | 15 | 18 | 3 | 4 | |
| M30 | 3.5 | 135 | 48 | 23 | 17 | 20 | 3 | 4 | |
| Size(UN) | Nominal diameter | L Overall length | l Thread Length | ln Length to neck | Ds Shank diameter | K Square size | lk Square length | TYPE | FLUTES |
| No.2-56UNC | 2.184 | 42 | 9.5 | 15 | 3 | 2.5 | 5 | 2 | 2 |
| No.3-48UNC | 2.515 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.4-40UNC | 2.845 | 44 | 9.5 | 16 | 3 | 2.5 | 5 | 2 | 2 |
| No.6-32UNC | 3.505 | 48 | 13 | 20 | 4 | 3.2 | 6 | 2 | 3 |
| No.8-32UNC | 4.166 | 52 | 13 | 21 | 5 | 4 | 7 | 2 | 3 |
| No.10-24UNC | 4.826 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| No.12-24UNC | 5.486 | 60 | 16 | 25 | 5.5 | 4.5 | 7 | 2 | 3 |
| 1/4-20UNC | 6.350 | 62 | 19 | 30 | 6 | 4.5 | 7 | 2 | 3 |
| 5/16-18UNC | 7.938 | 70 | 22 | 6.1 | 5 | 8 | 3 | 3 | |
| 3/8-16UNC | 9.525 | 75 | 24 | 7 | 5.5 | 8 | 3 | 3 | |
| 7/16-14UNC | 11.112 | 80 | 25 | 8 | 6 | 9 | 3 | 3 | |
| 1/2-13UNC | 12.700 | 85 | 29 | 9 | 7 | 10 | 3 | 3 | |
| 9/16-12UNC | 14.288 | 90 | 30 | 10.5 | 8 | 11 | 3 | 3 | |
| 5/8-11UNC | 15.875 | 95 | 32 | 12 | 9 | 12 | 3 | 3 | |
| 3/4-10NUC | 19.050 | 105 | 37 | 14 | 11 | 14 | 3 | 4 | |
| 7/8-9UNC | 22.225 | 115 | 38 | 17 | 13 | 16 | 3 | 4 | |
| 1-8UNC | 25.400 | 125 | 45 | 20 | 15 | 18 | 3 | 4 |
Nut taps are specialized cutting tools designed for threading nuts or similar deep-threaded holes. They typically feature a straight flute design that efficiently cuts and clears material, ensuring accurate, smooth threading. Made from high-speed steel or carbide, nut taps are ideal for mass production of nuts, especially in metals like steel, stainless steel, and aluminum. Their long thread length ensures proper engagement throughout deep holes, providing precise, uniform threads while reducing the risk of breakage or misalignment during tapping operations.
| Nominal Size | A Overall length |
B (Thread Length) | C Shank diameter |
FLUTES | |
| 25 Threads | 30 Threads (SUS) | ||||
| M3X0.5 | 58.7 | 12.5 | 15 | 2.3 | 3 |
| M3.5X0.6 | 58.5 | 15 | 18 | 2.3 | 3 |
| M4X0.7 | 58.3 | 17.5 | 21 | 3 | 3 |
| M4.5X0.75 | 58 | 18.8 | 22.5 | 3.5 | 3 |
| M5X0.8 | 62.8 | 20 | 24 | 3.8 | 3 |
| M6Ã1 | 67.4 | 25 | 30 | 4.6 | 3 |
| M7Ã1 | 70 | 25 | 30 | 5.6 | 3 |
| M8Ã1.25 | 77 | 31.3 | 37.5 | 6 | 5 |
| M9Ã1.25 | 89 | 31.3 | 37.5 | 7 | 5 |
| M10Ã1.5 | 89 | 37.5 | 45 | 8 | 5 |
| M11Ã1.5 | 102 | 37.5 | 45 | 8.8 | 5 |
| M12Ã1.75 | 102 | 43.8 | 52.5 | 9.5 | 5 |
| M14Ã2 | 114 | 50 | 60 | 11.2 | 5 |
| M16Ã2 | 127 | 50 | 60 | 13.1 | 5 |
| M18X2.5 | 133 | 62.5 | 75 | 14 | 5 |
| M20X2.5 | 133 | 62.5 | 75 | 16.5 | 5 |
| M22Ã2.5 | 146 | 62.5 | 75 | 17.5 | 5 |
| M24Ã3 | 165 | 75 | 90 | 18.5 | 5 |
| M27x3 | 165 | 75 | 90 | 21.5 | 5 |
| Nominal Size | A Overall length |
B (Thread Length) | C Shank diameter |
FLUTES | |
| 25 Threads | 30 Threads (SUS) | ||||
| No.4-40UNC | 58.8 | 15.9 | 19.1 | 2 | 3 |
| No.5-40UNC | 58.7 | 15.9 | 19.1 | 2.2 | 3 |
| No.6-32UNC | 58.6 | 19.8 | 23.8 | 2.4 | 3 |
| No.8-32UNC | 58.2 | 19.8 | 23.8 | 3.1 | 3 |
| No.10-24UNC | 63 | 26.5 | 31.8 | 3.4 | 3 |
| No.10-32UNC | 67.6 | 26.5 | 31.8 | 4 | 3 |
| No.12-24UNC | 72.4 | 31.8 | 38.1 | 4.6 | 3 |
| No.12-32UNC | 77 | 35.3 | 42.3 | 6 | 5 |
| 114-20UNC | 89 | 39.7 | 47.6 | 7.3 | 5 |
| 5/16-18UNC | 102 | 45.4 | 54.4 | 8.6 | 5 |
| 3/8-16UNC | 102 | 48.8 | 58.6 | 10 | 5 |
| 7/16-14UNC | 114 | 52.9 | 63.5 | 11 | 5 |
| 1/2-13UNC | 127 | 57.7 | 69.3 | 12.8 | 5 |
| 9/16-12UNC | 133 | 63.5 | 76.2 | 15 | 5 |
| 5/8-11UNC | 133 | 70.6 | 84.7 | 17 | 5 |
| 3/4-10UNC | 165 | 79.4 | 95.3 | 20 | 5 |
| Nominal Size | A Overall length |
B (Thread Length) | C Shank diameter |
FLUTES | |
| 25 Threads | 30 Threads (SUS) | ||||
| 1/8W 40 | 58.7 | 15.9 | 19.1 | 2.2 | 3 |
| 5/32W 32 | 58.4 | 19.8 | 23.8 | 2.7 | 3 |
| 3/16W 24 | 63.2 | 26.5 | 31.8 | 3.2 | 3 |
| 1/14W 20 | 72.4 | 31.8 | 38.1 | 4.6 | 3 |
| 5/16W18 | 77 | 35.3 | 42.3 | 6 | 5 |
| 3/8W 16 | 89 | 39.7 | 47.6 | 7.3 | 5 |
| 7/16W 14 | 102 | 45.4 | 54.4 | 8.6 | 5 |
| 1/2W 12 | 102 | 52.9 | 63.5 | 9.5 | 5 |
| 9/16W 12 | 114 | 52.9 | 63.5 | 10.5 | 5 |
| 5/8W 11 | 127 | 57.7 | 69.3 | 12 | 5 |
| 3/4W 10 | 133 | 63.5 | 76.2 | 15 | 5 |
| 7/8W 9 | 133 | 70.6 | 84.7 | 17 | 5 |
| 1"W 8 | 165 | 79.4 | 95.3 | 20 | 5 |
| Nominal Size | A Overall length |
B (Thread Length) | C Shank diameter |
FLUTES | |
| 25 Threads | 30 Threads (SUS) | ||||
| M4X0.5 | 58.1 | 12.5 | 15 | 3 | 3 |
| M5X0.5 | 62.6 | 12.5 | 15 | 4 | 3 |
| M6X0.75 | 67.2 | 18.8 | 22.5 | 4.5 | 3 |
| M7X0.75 | 70 | 18.8 | 22.5 | 5.5 | 3 |
| M8X0.75 | 76 | 18.8 | 22.5 | 6.5 | 5 |
| M9X0.75 | 89 | 18.8 | 22.5 | 7.5 | 5 |
| M8X1 | 77 | 25 | 30 | 6.6 | 5 |
| M9X1 | 89 | 25 | 30 | 7.6 | 5 |
| M10X1 | 89 | 25 | 30 | 8.6 | 5 |
| M10X1.25 | 89 | 31.3 | 37.5 | 8 | 5 |
| M12X1.25 | 102 | 31.3 | 37.5 | 10 | 5 |
| M14X1.25 | 114 | 31.3 | 37.5 | 12 | 5 |
| M12X1.5 | 102 | 37.5 | 45 | 9.5 | 5 |
| M14X1.5 | 114 | 37.5 | 45 | 11 2 | 5 |
| M16X1.5 | 127 | 37.5 | 45 | 13.1 | 5 |
| M18X1.5 | 133 | 37.5 | 45 | 15 | 5 |
| M20X1.5 | 133 | 37.5 | 45 | 16.5 | 5 |
| M22x1.5 | 146 | 37.5 | 45 | 19 | 5 |
| M24X1.5 | 165 | 37.5 | 45 | 21.5 | 5 |
| M18X2 | 133 | 50 | 60 | 15 | 5 |
| M20X2 | 133 | 50 | 60 | 16.5 | 5 |
| M22X2 | 146 | 50 | 60 | 19 | 5 |
| M24X2 | 165 | 50 | 60 | 20 | 5 |
| Nominal Size | A Overall length |
B (Thread Length) | C Shank diameter |
FLUTES | |
| 25 Threads | 30 Threads (SUS) | ||||
| No.4-48UNF | 58.8 | 13.2 | 15.9 | 2 | 3 |
| No.5-44UNF | 58.7 | 14.4 | 17.3 | 2.2 | 3 |
| No.6-40UNF | 58.6 | 15.9 | 19.1 | 2.4 | 3 |
| No.8-36UNF | 58.2 | 17.6 | 21.2 | 3.1 | 3 |
| No.10-32UNF | 62.9 | 19.8 | 23.8 | 3.8 | 3 |
| No.12-28UNF | 67.5 | 22.7 | 27.2 | 4.2 | 3 |
| 1/4-28UNF | 67.1 | 22.7 | 27.2 | 4.8 | 3 |
| 5/16-24UNF | 77 | 26.5 | 31.8 | 6.3 | 5 |
| 3/8-24UNF | 89 | 26.5 | 31.8 | 8 | 5 |
| 7/16-20UNF | 102 | 31.8 | 38.1 | 9 | 5 |
| 1/2-20UNF | 102 | 31.8 | 38.1 | 10 | 5 |
| 9/16-18UNF | 114 | 35.3 | 42.3 | 11.4 | 5 |
| 5/8-18UNF | 127 | 35.3 | 42.3 | 13 | 5 |
| 3/4-16UNF | 133 | 39.7 | 47.6 | 15 | 5 |
| 718-14UNF | 133 | 45.4 | 54.4 | 18.5 | 5 |
| 1"-12UNF | 165 | 52.9 | 63.5 | 21 | 5 |
Pipe thread taps are designed for creating internal threads in pipes and fittings, essential for secure, leak-proof connections. They feature a tapered or straight thread profile to match standard pipe thread specifications. Typically made from high-speed steel or carbide, these taps ensure precise threading in materials like steel, brass, and plastic. The tapered design helps in starting the thread smoothly, while the straight flutes cut and clear chips efficiently. They are crucial for applications requiring tight tolerances and reliable sealing in plumbing and industrial settings.
| Specifications | tpi | L Overall length | l Thread Length | Ds Shank diameter | K Square size | FLUTES | |
| G1/8 | Rp1/8 | 28 | 59 | 15 | 8 | 6.3 | 4 |
| G1/4 | Rp1/4 | 19 | 67 | 19 | 10 | 8 | 4 |
| G3/8 | Rp3/8 | 19 | 75 | 21 | 12.5 | 10 | 4 |
| G1/2 | Rp1/2 | 14 | 87 | 26 | 16 | 12.5 | 4 |
| G3/4 | Rp3/4 | 14 | 39 | 28 | 20 | 16 | 4 |
| G1â | Rp1 | 11 | 109 | 33 | 25 | 20 | 6 |
| G11/4 | Rp11/4 | 11 | 119 | 36 | 31.5 | 25 | 6 |
| G11/2 | Rp11/2 | 11 | 125 | 37 | 35.5 | 28 | 6 |
| G2 | Rp2 | 11 | 140 | 41 | 40 | 31.5 | 8 |
| Specifications | tpi | L Overall length | l Thread Length | Ds Shank diameter | K Square size | FLUTES | |
| PT1/8 | Rc1/8S | 28 | 55 | 15 | 9 | 7 | 4 |
| PT1/4 | Rc1/4S | 19 | 60 | 20 | 11 | 9 | 4 |
| PT3/8 | Rc3/8S | 19 | 65 | 22 | 14 | 11 | 4 |
| PT1/2 | Rc1/2S | 14 | 70 | 25 | 15 | 14.5 | 4 |
| PT3/4 | Rc3/4S | 14 | 70 | 26 | 17 | 18 | 4 |
| PT1 | Rc1S | 11 | 80 | 30 | 20 | 20 | 4 |
| PT11/4 | Rc11/4S | 11 | 85 | 32 | 22 | 26 | 6 |
| PT11/2 | Rc11/2S | 11 | 90 | 32 | 23 | 29 | 6 |
Welcome to our ODM/OEM service for non-standard taps! We specialize in designing and manufacturing custom taps to meet your unique needs, ensuring optimal performance and precision. Our experienced team works closely with you, providing tailored solutions for any threading requirements. Whether you need special Nominal Size, materials, or coatings, we can deliver high-quality taps that align with your project specifications. Partner with us for reliable, cost-effective, and innovative solutions in custom tap production.
