DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Inspection and Measuring Fixturing
Use these components in coordinate measuring machine (CMM) applications to raise a workpiece and reliably position it on a fixture plate with 1/4"-20 holes. They are not for use in machining applications.
For technical drawings and 3-D models, click on a part number.
Hold-down clamps thread directly into a fixture plate, tower, or compatible component. Slide the clamp down its shaft and press into place against the workpiece for a light hold. They're also known as tension spring clamps. Wire clamps have a slimmer profile than standard, making them good for clamping small parts or minimizing contact area for additional visibility.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Reach | Ht. | Size | Pitch, mm | Lg. | Material | Tip Finish | Each | |
Standard | ||||||||
| 13/16" | 2" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 000000 |
| 1 9/16" | 2 3/4" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 00000 |
| 1 9/16" | 2 3/4" | 1/4"-20 | __ | 1/4" | Aluminum | Rubber Coated | 0000000 | 00000 |
| 2 5/16" | 2 3/4" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 00000 |
| 2 5/16" | 2 3/4" | 1/4"-20 | __ | 1/4" | Aluminum | Rubber Coated | 0000000 | 00000 |
| 3 7/16" | 3" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 00000 |
| 21mm | 50mm | M4 | 0.7 | 4.496mm | Aluminum | __ | 0000000 | 00000 |
| 21mm | 50mm | M6 | 1 | 6.223mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 50mm | M4 | 0.7 | 4.496mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 75mm | M6 | 1 | 6.223mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 75mm | M8 | 1.25 | 6.223mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 50mm | M4 | 0.7 | 4.496mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 75mm | M6 | 1 | 6.223mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 75mm | M8 | 1.25 | 6.223mm | Aluminum | __ | 0000000 | 00000 |
Wire | ||||||||
| 1 1/4" | 1" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 00000 |
| 2" | 2" | 1/4"-20 | __ | 1/4" | Aluminum | __ | 0000000 | 00000 |
Hardened V-Blocks
Use these pairs of blocks to support long, round workpieces—secure with the built-in clamps. They’re machined to identical tolerances for precise alignment.
For technical drawings and 3-D models, click on a part number.
V-Blocks | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tolerance | Replacement Clamps | |||||||||||||||
| For Max. Workpiece Dia. | Lg. | Wd. | Ht. | Hole Thread Size | V Angle | V Dp. | V Wd. | Squareness | Parallel | Mounting Slot Ht. | Material | Machinable | Pair | Each | ||
With Clamp | ||||||||||||||||
| 1" | 1 5/8" | 1 1/4" | 1 1/4" | 1/4"-20 | 90° | 7/16" | 13/16" | 0.0002" | 0.0002" | 1/4" | Steel | No | 0000000 | 0000000 | 0000000 | 000000 |
| 1 5/8" | 2 1/2" | 2 1/2" | 2" | __ | 90° | 3/4" | 1 1/2" | 0.0002" | 0.0002" | 3/8" | Steel | No | 0000000 | 000000 | 000000 | 00 |
| 2" | 2 1/2" | 3" | 2" | 3/8"-16 | 90° | 3/4" | 1 1/2" | 0.0002" | 0.0002" | 3/8" | Steel | No | 0000000 | 000000 | 0000000 | 00000 |
| 2 7/8" | 3" | 4" | 3" | __ | 90° | 1 3/16" | 2 5/16" | 0.0002" | 0.0002" | 5/8" | Steel | No | 0000000 | 000000 | 000000 | 00 |
| 3 3/4" | 3" | 5" | 3" | __ | 90° | 1 5/8" | 3 1/4" | 0.0002" | 0.0002" | 5/8" | Steel | No | 0000000 | 00000000 | 000000 | 00 |
| 4 3/8" | 6" | 6" | 4" | __ | 90° | 2" | 4" | 0.0003" | 0.0003" | 5/8" | Steel | No | 0000000 | 00000000 | 000000 | 00 |
| 5 1/4" | 6" | 7" | 4" | __ | 90° | 2 1/2" | 4 15/16" | 0.0003" | 0.0003" | 5/8" | Steel | No | 0000000 | 00000000 | 000000 | 00 |