Granite Flat-Surface Plates
Rectangular
Rectangular with Two Ledges
Corrosion resistant and nonmagnetic, these smooth plates also resist warping and abrasion. The extremely tight flatness tolerances provide an accurate reference plane for layout and inspection work.
Plates with two ledges are used to hold fixtures and instruments with clamps.
Inspection Grade A plates are for general quality control work.
Also Available: Other plate sizes. Please order 2245A999 and specify grade, length, width, thickness, and with or without ledges.
For technical drawings and 3-D models, click on a part number.
Plates | Plate Covers | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flatness Tolerance | Color | Specifications Met | Certification | Wt., lbs. | Each | Each | ||
Rectangular | |||||||||||
Inspection Grade A | |||||||||||
12" | 8" | 2" | 0.0001" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 28 | 0000000 | 0000000 | 000000 | 00 |
18" | 12" | 4" | 0.0001" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 93 | 0000000 | 000000 | 00000000 | 000000 |
24" | 18" | 4" | 0.00015" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 185 | 0000000 | 000000 | 00000000 | 000000 |
36" | 24" | 6" | 0.0002" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 555 | 0000000 | 00000000 | 00000000 | 000000 |
48" | 36" | 6" | 0.0004" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 1,110 | 0000000 | 00000000 | 00000000 | 000000 |
Rectangular with Two Ledges | |||||||||||
Inspection Grade A | |||||||||||
18" | 12" | 4" | 0.0001" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 83 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 4" | 0.00015" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 175 | 0000000 | 000000 | 00000000 | 000000 |
36" | 24" | 6" | 0.0002" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 530 | 0000000 | 00000000 | 00000000 | 000000 |
48" | 36" | 6" | 0.0004" | Black | ASME B89.3.7, Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 1,063 | 0000000 | 00000000 | 00000000 | 000000 |