Profile-specific tooling
Use the complete trapezoidal thread designation rather than a general-purpose tap size.
Catalog reference view. final supplied configuration confirmed by quotation.
TR SERIES
Trapezoidal Thread Taps
Overview
Trapezoidal thread taps for lead screws, motion components and drawing-based applications.
AvailabilityConfirm before order
Lead timeQuote based
Product details
Trapezoidal thread taps are intended for parts with a specified trapezoidal internal-thread profile, including matching nuts in motion mechanisms. The thread designation, pitch and hand need to be explicit. Compare the selected catalog row with the component drawing and provide the required thread depth before the tap geometry and connection are confirmed.
Direction and pitch
Right- or left-hand threading and the stated pitch are separate order requirements.
Mating-part reference
A nut or mating screw drawing helps establish the intended internal thread accurately.
Specifications & model range
Nominal dimensions transcribed from the supplied company's trapezoidal-tap table. The source lists sizes and lengths but does not establish thread tolerance class, handedness, tool material or suitability for a workpiece material. Confirm these and the final drawing before ordering. Source values are retained, including shank d1 = 31 mm for Tr40 and Tr42; no inferred rounding to 31.5 mm.
Drawing confirmation requiredThe source length labels and the 31 mm shank entries for Tr40×7 and Tr42×7 need drawing confirmation. Values are transcribed as supplied and are not an approved production specification.
- Thread form
- Trapezoidal
- Direction
- Confirm right or left hand
- Size and pitch
- Drawing confirmed
23 catalog rows
| Thread designation | Total L (mm) | Thread length l1 (mm) | Square a (mm) | Square length l2 (mm) | Shank d1 (mm) | Pilot length l4 (mm) | Pilot diameter d4 (mm) |
|---|---|---|---|---|---|---|---|
| Tr8×1.5 | 60 | 24 | 5 | 8 | 6.3 | 8 | 6 |
| Tr10×2 | 80 | 40 | 5.6 | 8 | 7.1 | 10 | 8 |
| Tr12×2 | 115 | 63 | 6.3 | 9 | 8 | 12 | 9 |
| Tr14×3 | 115 | 63 | 8 | 11 | 10 | 12 | 11 |
| Tr16×4 | 170 | 100 | 9 | 12 | 11.2 | 16 | 12 |
| Tr18×4 | 170 | 100 | 10 | 13 | 12.5 | 16 | 14 |
| Tr20×4 | 170 | 100 | 11.2 | 14 | 14 | 16 | 16 |
| Tr22×5 | 250 | 155 | 12.5 | 16 | 16 | 20 | 17 |
| Tr24×5 | 250 | 155 | 14 | 18 | 18 | 20 | 19 |
| Tr26×5 | 250 | 155 | 16 | 20 | 20 | 20 | 21 |
| Tr28×5 | 250 | 155 | 18 | 22 | 22.4 | 20 | 23 |
| Tr30×6 | 300 | 170 | 18 | 22 | 22.4 | 24 | 24 |
| Tr32×6 | 300 | 170 | 20 | 24 | 25 | 24 | 26 |
| Tr34×6 | 300 | 170 | 20 | 24 | 25 | 24 | 28 |
| Tr36×6 | 300 | 170 | 22.4 | 26 | 28 | 24 | 30 |
| Tr38×7 | 360 | 220 | 22.4 | 26 | 28 | 28 | 31 |
| Tr40×7 | 360 | 220 | 25 | 28 | 31 | 28 | 33 |
| Tr42×7 | 360 | 220 | 25 | 28 | 31 | 28 | 35 |
| Tr44×7 | 400 | 220 | 28 | 31 | 35.5 | 28 | 37 |
| Tr46×8 | 400 | 240 | 28 | 31 | 35.5 | 32 | 38 |
| Tr48×8 | 400 | 240 | 28 | 31 | 35.5 | 32 | 40 |
| Tr50×8 | 400 | 240 | 31.5 | 34 | 40 | 32 | 42 |
| Tr52×8 | 400 | 240 | 31.5 | 34 | 40 | 32 | 44 |
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.
- Tr designation and thread hand identified
- Profile teeth protected from impact
- Drawing revision linked to the supplied tool
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.
Lead screw nuts
Producing a drawing-defined internal thread for a matched motion assembly.
Machine adjustment parts
Threading components whose drawings specify a trapezoidal profile.
Special-tool replacement
Matching an existing trapezoidal tap from its full code and geometry.
Related product series
Compare alternative interfaces and complementary tooling. A related series is not automatically interchangeable.
BUTTRESS SERIES
Buttress Thread Taps
Models and specifications
GROUND BALL SCREW SERIES
Precision Ground Ball Screws
Models and specifications
STANDARD TAP SERIES
Machine and Hand Taps
Models and specificationsCan a standard metric tap produce the same profile?
Do not substitute profiles. Select the tool from the specified trapezoidal thread drawing.
Is pitch alone enough for a motion thread?
Include the complete designation and any thread-hand or start-count requirements stated on the drawing.
Are the related ball screws compatible mating parts?
No. They are related motion-system products, not a mating-part recommendation for a trapezoidal thread.
Can you supply a replacement from a nut sample?
A sample is useful, but the original thread drawing and inspection requirement are preferred for confirmation.