Metric Tooling Plates | McMaster-Carr

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	System of Measurement System of Measurement	Show

Metric

	System of Measurement System of Measurement	Hide

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

0.7 mm

1 mm

1.25 mm

	Reach Reach

21mm

38mm

58mm

	Height Height

50mm

75mm

	Material Material

Aluminum

	Thread Length Thread Length

4.8mm

6.4mm

7.9mm

	Clamp Style Clamp Style

Standard

	Component Component

Hold-Down Clamp

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8 Products

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

Hold-Down Clamp

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.

		Thread
Reach	Ht.	Size	Pitch, mm	Lg.	Material		Each
Standard
21mm	50mm	M4	0.7	4.8mm	Aluminum	0000000	000000
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

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