Thread Form Overlays / Overlay of Thread Profile
As API Spec5B statement, Thread form shall be assessed with an optical comparator/profile projector. A thread form master overlay, physical or digital ,of known accuracy is required. thread angles shall be measured with an profile projector.
Thread Form Overlays for Tubing&Casing Round
Thread Form Overlays for External Buttress Casing
| P/N | Model | Description | Connection |
| OTF08R | YXLK-16-RD8 | 8 TPI Tubing&Casing Round Thread Form Overlays | 8 TPI, 3/4 TPF |
| OTF10R | YXLK-16-RD10 | 10 TPI Tubing Thread Form Overlays | 10 TPI, 3/4 TPF |
| OTF75B-Int | YXLK-16-BTC-N | Internal Thread, 5 TPI Buttress Casing Thread Form Overlays | 5TPI, 3/4 TPF, 4 1/2″~13 3/8″ |
| OTF0758B-Ext | YXLK-16-BTC-W1 | External Thread, 5 TPI Buttress Casing Thread Form Overlays | 5TPI, 3/4 TPF, 4 1/2″~7 5/8″ |
| OTF1338B-Ext | YXLK-16-BTC-W2 | External Thread, 5 TPI Buttress Casing Thread Form Overlays | 5TPI, 3/4 TPF, 8 5/8″~13 3/8″ |
| OTF10B-Int | YXLK-12-BTC-N | Internal Thread, 5 TPI Buttress Casing Thread Form Overlays | 5 TPI,1 TPF, 16″~20″ |
| OTF1620-Ext | YXLK-12-BTC-W | External Thread, 5 TPI Buttress Casing Thread Form Overlays | 5 TPI,1 TPF, 16″~20″ |