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About Aluminum
More
T-Slot Fixture Plates
These plates have three T-slots for use with T-slot nuts, bolts, and setup studs. There is a slot along each side of the plate for mounting with clamps.
Aluminum plates are lightweight and have mild corrosion resistance.
For technical drawings and 3-D models, click on a part number.
T-Slot Blocks
Mount these versatile blocks to any flat surface for machine table-style T-slot clamping. They can also be used on a machine table to clamp parts at specific angles or add more total clamping points. Secure the block to your table using the slot for a 5/8" fixture key (not included) on the bottom of the block. Tapped holes on the top let you attach clamps or thread in screws to use as workstops.
Right-angle blocks are a good choice for clamping parts from the side.
T-Slots | Mounting | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | No. of | Wd. | Ctr.-to-Ctr. (A) | Ctr.-to-Ctr. (B) | No. of Holes | Hole Thread Size | Slot Wd. | Material | Each | |
Flat | ||||||||||||
| 5" | 2 1/4" | 1 3/4" | 1 | 3/8" | __ | __ | 1 | 5/16"-18 | 5/16" | Aluminum | 0000000 | 000000 |
| 5" | 3 1/4" | 1 3/4" | 4 | 3/8" | 2 5/32" | 1 1/4" | 2 | 5/16"-18 | 5/16" | Aluminum | 0000000 | 000000 |
| 7 1/4" | 2 3/4" | 2" | 1 | 5/8" | __ | __ | 1 | 1/2"-13 | 1/2" | Aluminum | 0000000 | 00000 |
| 7 1/4" | 5 1/2" | 2" | 4 | 5/8" | 2 3/4" | 3" | 2 | 1/2"-13 | 1/2" | Aluminum | 0000000 | 000000 |
Right Angle | ||||||||||||
| 3 1/4" | 2" | 2 1/2" | 2 | 3/8" | 1" | __ | 1 | 5/16"-18 | __ | Aluminum | 0000000 | 00000 |
| 4" | 2 1/4" | 3 1/2" | 2 | 5/8" | 1 1/2" | __ | 1 | 1/2"-13 | __ | Aluminum | 0000000 | 00000 |
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.
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 | 4.8mm | Aluminum | __ | 0000000 | 00000 |
| 21mm | 50mm | M6 | 1 | 6.4mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 50mm | M4 | 0.7 | 4.8mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 75mm | M6 | 1 | 6.4mm | Aluminum | __ | 0000000 | 00000 |
| 38mm | 75mm | M8 | 1.25 | 7.9mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 50mm | M4 | 0.7 | 4.8mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 75mm | M6 | 1 | 6.4mm | Aluminum | __ | 0000000 | 00000 |
| 58mm | 75mm | M8 | 1.25 | 7.9mm | 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 |
Fixture plates have a grid of 1/4"-20 threaded holes spaced 1/2" apart for attaching components. Alpha-numeric markings around the edges of the plates make it easier to identify holes and repeat tasks. Use aluminum plates with CMMs and optical comparators.
Holes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Thick. | Parallel Tolerance | No. of | Style | Thread Size | Ctr.-to-Ctr. | Material | Each | |
| 3" | 3" | 1/2" | 0.0025" | 21 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 000000 |
| 3" | 6" | 1/2" | 0.0025" | 51 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 000000 |
| 6" | 6" | 3/8" | 0.0025" | 121 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 000000 |
| 12" | 12" | 1/2" | 0.005" | 484 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 000000 |
| 18" | 18" | 1/2" | 0.01" | 1,156 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 00000000 |
| 24" | 24" | 3/4" | 0.01" | 2,116 | Threaded | 1/4"-20 | 1/2" | Aluminum | 0000000 | 00000000 |
The height of fixture towers makes them useful for holding large parts. They have a grid of 1/4"-20 threaded holes spaced 1/2" apart for attaching components. Alpha-numeric markings around the edges of the towers make it easier to identify holes and repeat tasks.
Use an angle plate to mount components at a right angle.
Slots | Holes | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Lg. | Wd. | No. of | Style | Thread Size | Material | Each | |
| 3" | 1" | 3" | 1 3/4" | 1/4" | 18 | Threaded | 1/4"-20 | Aluminum | 0000000 | 000000 |
Thread | ||||||
|---|---|---|---|---|---|---|
| Dia. | Ht. | Size | Lg. | Material | Each | |
Adjustable Height | ||||||
| 1/2" | 1 7/16"-1 3/4" | 1/4"-20 | 1/4" | Aluminum | 0000000 | 000000 |
Vacuum Workholding Plates
Also known as vacuum chucks, these plates secure thin and flexible parts that can’t be held with vises or clamps for milling, drilling, routing, and finishing operations. Connect the system to your shop’s compressed air supply and it's ready to use. For applications requiring only part of the plate surface, use the gasket cord to seal off the area.
Risers, also known as vacuum pods, raise the workpiece off the vacuum table to give the cutting tool better access. Suction transfers from the table through the top of the riser, so to get a firm hold the workpiece must make contact with the full top length and width of the riser.
Retracting stop pins let you repeatably locate parts on your vacuum table. After positioning your workpiece against these pins, turn on the vacuum and the stop pins retract, dropping out of the way so the cutting tool has full access to the workpiece.
Side stops fit into the grooves of the vacuum plate to help you repeatably position material. They can be removed from the plate after the vacuum is turned on to give the cutting tool more access to the workpiece.
Easy-to-Machine Cast Aluminum for Tool and Jig Plates
- Yield Strength: 18,000 psi
- Hardness: Brinell 70 (Soft)
- Temper: O
- Fabrication: Cast
- Specifications Met: ASTM B209
Made of 5083 aluminum, these cast tool and jig plates are more corrosion resistant and respond better to anodizing than MIC6. This material is comparable to Alca 5 and ATP 5. Use for CNC routing tables, assembly jigs, vacuum chucks, and other applications where consistent flatness and tight tolerances are critical.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
| Thick. | Thick. Tolerance | Heat Treatment | Temperature Range, °F | Flatness Tolerance | Each | |
12" × 12" | ||||||
|---|---|---|---|---|---|---|
| 1/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 3/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 00000 |
| 1/2" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 00000 |
| 5/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 00000 |
| 3/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 00000 |
| 1" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
12" × 24" | ||||||
| 1/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 00000 |
| 3/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 1/2" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 5/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 3/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 1" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
18" × 18" | ||||||
| 1/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 00000 |
| 3/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 1/2" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 5/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 3/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 1" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
24" × 24" | ||||||
| 1/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 3/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 1/2" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.015" | 00000000 | 000000 |
| 5/8" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 3/4" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |
| 1" | -0.005" to 0.005" | Annealed (Softened) | -315° to 250° | 0.005" | 00000000 | 000000 |