AMERICAN STANDARD EXTERNAL TAPER PIPE THREADS
The United States uses ANSI’s American National Standard Pipe Thread Standards to regulate the formation
Knurl Styles
Straight
• Diagonal (30 ̊ and 45 ̊)
• Diamond (male and female)
• Square
• Custom
Fits most knurl holders.
Approximate Increase in Knurled Diameters
TPI | Tooth Angle | Straight | Diagonal | Diamond – Male | Diamond – Female |
---|---|---|---|---|---|
12 | 90° | .034 | .034 | — | — |
16 | 90° | .025 | .025 | — | — |
20 | 90° | .020 | .020 | .023 | .014 |
25 | 90° | .016 | .016 | .018 | .011 |
30 | 90° | .013 | .013 | .015 | .009 |
35 | 90° | .011 | .011 | — | — |
40 | 90° | .009 | .009 | — | — |
Diametral Pitch | Tooth Angle | Straight | Diagonal | Equivalent Normal Circular TPI – Straight Teeth | Equivalent Normal Circular TPI – 30 ̊ Diagonal |
---|---|---|---|---|---|
64 | 80° | .024 | .021 | 20.7 | 23.9 |
96 | 80° | .016 | .014 | 30.8 | 35.6 |
128 | 80° | .012 | .010 | 41.1 | 47.4 |
160 | 80° | .009 | .008 | 51.2 | 59.1 |
All tolerances, unless otherwise specified, will be the tolerances used on our stock knurls. We will be glad to quote price and delivery on special knurls upon receipt of the necessary information as outlined above.
Knurls for Cross Slide Attachments
CJWinter designs straight and diagonal knurls to customer specifications for knurling on CJWinter, Davenport, Reed, and other cross-slide thread rolling attachments. Knurls can be supplied in various types, in either circular or diametral pitch, to suit individual requirements. The four diametral pitches available are 64, 96, 128, and 160.
How to Order Knurls
A large variety of knurl blanks are regularly carried in stock, ensuring fast delivery on special knurls made to customer’s specifications.
When ordering special knurls, please furnish a blueprint of the knurl desired or provide the specific information outlined below:
The United States uses ANSI’s American National Standard Pipe Thread Standards to regulate the formation
Thread rolling is a metal forging process that forms threads into the mirror image of
Most frequently used in the production of threaded rods, bolts, screws, and other metal fasteners, thread