55 degree profile
The source identifies the thread angle; the complete thread standard still needs confirmation.
Catalog reference view. final supplied configuration confirmed by quotation.
55 DEGREE PIPE
55 Degree Pipe Thread Taps
Overview
Pipe taps with a 55 degree thread form for confirmed pipe-thread standards.
AvailabilityConfirm before order
Lead timeQuote based
Product details
This pipe-tap family is identified by a 55 degree thread form. The angle alone does not define the complete pipe thread, so the required standard, designation and any taper requirement must accompany the inquiry. Review the relevant catalog row together with the component drawing before confirming a tool for fittings, valves or other fluid-related parts.
Full pipe designation
Supply the specified pipe thread code, size and any parallel or taper requirement.
Component context
Include hole depth, material and the required thread inspection method for quotation review.
Specifications & model range
Nominal values and G designations reproduced as printed in the supplied 55-degree pipe-tap table. The source heading says tapered pipe tap, while its designation columns include G, G-D and Rp. This inconsistency has not been resolved or converted into a single pipe-thread standard. Confirm the exact standard, parallel/tapered form, designation and drawing before quotation. Tolerances and additional designation columns are not reproduced.
Drawing confirmation requiredThe source lists G, G-D and Rp under a pipe-tap heading. These designations are not interchangeable. Confirm the exact thread standard, parallel or tapered form and mating gauge before choosing a row.
- Thread angle
- 55 degrees
- Thread designation
- Confirm standard
- Size
- Drawing or thread code
20 catalog rows
| Catalog G designation | TPI | Pitch P (mm) | Basic diameter d (mm) | Total L (mm) | Thread length l1 (mm) | Shank d1 (mm) | Square a (mm) |
|---|---|---|---|---|---|---|---|
| G1/16 | 28 | 0.907 | 7.723 | 52 | 14 | 5.6 | 4.5 |
| G1/8 | 28 | 0.907 | 9.728 | 59 | 15 | 8 | 6.3 |
| G1/4 | 19 | 1.337 | 13.157 | 67 | 19 | 10 | 8 |
| G3/8 | 19 | 1.337 | 16.662 | 75 | 21 | 12.5 | 10 |
| G1/2 | 14 | 1.814 | 20.955 | 87 | 26 | 16 | 12.5 |
| G5/8 | 14 | 1.814 | 22.911 | 91 | 26 | 18 | 14 |
| G3/4 | 14 | 1.814 | 26.441 | 96 | 28 | 20 | 16 |
| G7/8 | 14 | 1.814 | 30.201 | 102 | 29 | 22.4 | 18 |
| G1 | 11 | 2.309 | 33.249 | 109 | 33 | 25 | 20 |
| G1 1/8 | 11 | 2.309 | 37.897 | 116 | 34 | 28 | 22.4 |
| G1 1/4 | 11 | 2.309 | 41.91 | 119 | 36 | 31.5 | 25 |
| G1 1/2 | 11 | 2.309 | 47.803 | 125 | 37 | 35.5 | 28 |
| G1 3/4 | 11 | 2.309 | 53.746 | 132 | 39 | 35.5 | 28 |
| G2 | 11 | 2.309 | 59.614 | 140 | 41 | 40 | 31.5 |
| G2 1/4 | 11 | 2.309 | 65.71 | 142 | 42 | 40 | 31.5 |
| G2 1/2 | 11 | 2.309 | 75.184 | 153 | 45 | 45 | 35.5 |
| G2 3/4 | 11 | 2.309 | 81.534 | 163 | 46 | 50 | 40 |
| G3 | 11 | 2.309 | 87.884 | 164 | 48 | 50 | 40 |
| G3 1/2 | 11 | 2.309 | 100.33 | 173 | 50 | 63 | 50 |
| G4 | 11 | 2.309 | 113.03 | 185 | 53 | 71 | 56 |
No matching model in this table. Try a shorter code or send us your drawing.
Ranges and slash-separated values describe catalog families, not every possible combination. Confirm the complete model and drawing before ordering.
Shipping photos & packing
Agree the packing method and photo requirements when confirming your order.
Order-specific photo confirmation
Verified dispatch photos for this series have not been uploaded. Request photographs of your selected model, protective packing and shipping label when confirming your order.
Discuss packing requirementsPhotos to confirm before dispatch
Use this checklist to agree what should be documented for your selected model.
- Pipe designation kept distinct from metric tap sizes
- Profile and cutting edges protected
- Any specified thread inspection records linked to the lot
Stock, dispatch date and shipping method are confirmed with the quotation. Website images are not live inventory evidence.
Application scenarios
Typical selection contexts for this series, not customer project claims. Confirm machine compatibility and cutting conditions for your setup.
Pipe fitting components
Producing the internal pipe thread specified on a fitting drawing.
Valve and fluid parts
Selecting a tap for a documented threaded port or connection.
Replacement pipe tooling
Matching an existing tap using its complete markings and component specification.
Related product series
Compare alternative interfaces and complementary tooling. A related series is not automatically interchangeable.
COMBINATION SERIES
Combination Taps
Models and specifications
VALVE TOOL SERIES
Valve Core Threading Tools
Models and specifications
STANDARD TAP SERIES
Machine and Hand Taps
Models and specificationsDoes a 55 degree angle identify the entire pipe-thread specification?
No. The complete standard, size and any taper requirement are needed to define the thread.
Can I substitute this for a pipe tap with a different profile?
No. Use the exact component drawing and thread standard; pipe-tap labels are not interchangeable.
Is the tap diameter the same as a pipe's nominal size?
Use the complete specified thread designation and catalog dimensions rather than equating different nominal dimensions.
Does using this tap guarantee a pressure-tight connection?
No. This page specifies a cutting tool, not the performance of the finished fitting or assembled connection.