Fixture Keys
Sized to fit with precision in machine table T-slots, use these keys to locate fixtures and vises on your machine table. They mount to the underside of your fixture or vise with a socket head cap screw.
For technical drawings and 3-D models, click on a part number.
| For Machine Table T-Slot Wd. | Lg. | Wd. | Ht. | Wd. Tolerance | For Mounting Screw Size  | Mounting Fasteners Included | Material | Each | |
Rectangular | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 3/4" | 5/16" | 1/2" | -0.0005" to 0" | No. 4 | No | Steel | 0000000 | 00000 |
| 3/8" | 3/4" | 3/8" | 1/2" | -0.0005" to 0" | No. 6 | No | Steel | 0000000 | 0000 |
| 7/16" | 3/4" | 7/16" | 1/2" | -0.0005" to 0" | No. 6 | No | Steel | 0000000 | 0000 |
| 1/2" | 3/4" | 1/2" | 1/2" | -0.0005" to 0" | 1/4" | No | Steel | 0000000 | 0000 |
| 9/16" | 3/4" | 9/16" | 1/2" | -0.0005" to 0" | 1/4" | No | Steel | 0000000 | 0000 |
| 5/8" | 3/4" | 5/8" | 1/2" | -0.0005" to 0" | 5/16" | No | Steel | 0000000 | 0000 |
| 11/16" | 1" | 11/16" | 1/2" | -0.0005" to 0" | 5/16" | No | Steel | 0000000 | 00000 |
| 3/4" | 1 1/4" | 3/4" | 1/2" | -0.0005" to 0" | 5/16" | No | Steel | 0000000 | 00000 |
| 13/16" | 1 1/4" | 13/16" | 1/2" | -0.0005" to 0" | 5/16" | No | Steel | 000000 | 00000 |
| 7/8" | 1 1/4" | 7/8" | 3/4" | -0.0005" to 0" | 5/16" | No | Steel | 0000000 | 00000 |
| 1" | 1 1/4" | 1" | 3/4" | -0.0005" to 0" | 5/16" | No | Steel | 0000000 | 00000 |
| 1 1/8" | 1 1/2" | 1 1/8" | 3/4" | -0.0005" to 0" | 3/8" | No | Steel | 0000000 | 00000 |
| 1 1/4" | 1 1/2" | 1 1/4" | 1" | -0.0005" to 0" | 3/8" | No | Steel | 0000000 | 00000 |
| 1 5/16" | 1 1/2" | 1 5/16" | 1" | -0.0005" to 0" | 3/8" | No | Steel | 0000000 | 00000 |
| 1 3/8" | 1 1/2" | 1 3/8" | 1" | -0.0005" to 0" | 3/8" | No | Steel | 0000000 | 00000 |
| For Machine Table T-Slot Wd., mm | Lg., mm | Wd., mm | Ht., mm | Wd. Tolerance, mm | For Mounting Screw Size | Mounting Fasteners Included | Material | Each | |
Rectangular | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 10 | 20 | 10 | 8 | -0.009 to 0 | M4 | No | Steel | 0000000 | 000000 |
| 12 | 20 | 12 | 8 | -0.011 to 0 | M5 | No | Steel | 0000000 | 00000 |
| 14 | 22 | 14 | 10 | -0.011 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 16 | 22 | 16 | 10 | -0.011 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 18 | 22 | 18 | 10 | -0.011 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 20 | 22 | 20 | 10 | -0.013 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 22 | 32 | 22 | 12 | -0.013 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 24 | 32 | 24 | 12 | -0.013 to 0 | M6 | No | Steel | 0000000 | 00000 |
Stepped Rectangle | |||||||||
| 28 | 32 | 20 | 12 | -0.013 to 0 | M6 | No | Steel | 0000000 | 00000 |
| 36 | 32 | 20 | 12 | -0.013 to 0 | M6 | No | Steel | 0000000 | 00000 |
Hole-Mount Fixture Keys
Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. They mount to the underside of the fixture or vise. Each key can fit multiple machine table T-slot widths. Also known as sine keys.
Expanding keys have a screw that tightens from the top or bottom to adjust the shank size, giving the key a tight fit in a hole in your fixture.
Push-in keys are the only fixture keys compatible with DX-series Kurt vises. Insert them into the holes on the bottom of the vise and built-in O-rings hold the keys in place. They are sold in pairs.
For Machine Table T-Slot Wd. | Shank | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | For Hole Size | For Hole Size Tolerance | Ht. | Dia. | Ht. | Each | |
Steel | |||||||||
| 5/8" | 11/16" | 13/16" | 5/8" | -0.0005" to 0.0005" | 7/16" | 5/8" | 3/4" | 0000000 | 000000 |
For Machine Table T-Slot Wd. | Shank | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| (A), mm | (B), mm | (C), mm | For Hole Size | For Hole Size Tolerance | Ht. | Dia. | Ht. | Each | |
Steel | |||||||||
| 14 | 16 | 18 | 5/8" | -0.0005" to 0.0005" | 7/16" | 5/8" | 3/4" | 0000000 | 000000 |
For Machine Table T-Slot Wd. | Shank | |||||||
|---|---|---|---|---|---|---|---|---|
| (A) | (B) | For Hole Size | For Hole Size Tolerance | Ht. | Dia. | Ht. | Pair | |
Steel | ||||||||
| 1/2" | 9/16" | 5/8" | -0.0005" to 0.0005" | 1/4" | 5/8" | 15/32" | 0000000 | 000000 |
| 5/8" | 11/16" | 5/8" | -0.0005" to 0.0005" | 1/4" | 5/8" | 15/32" | 0000000 | 00000 |
| 3/4" | 13/16" | 5/8" | -0.0005" to 0.0005" | 1/4" | 5/8" | 15/32" | 0000000 | 00000 |
| 7/8" | 1" | 5/8" | -0.0005" to 0.0005" | 1/4" | 5/8" | 15/32" | 0000000 | 00000 |