1/4 aluminum diamond plate means the thickness of aluminum diamond plate is 6.35mm. Please see specs below:
Surface: Mirror bright finish, mill finish.
Bar type: diamond, 2 bars, 3 bars, 5 bars.
Product features: stable performance, good surface, excellent flatness and processability. Various specifications can be produced according to customer requirements

Alloy | Temper |
1xxx: 1050, 1060, | H112,H114 |
3xxx: 3003, 3105 |
5xxx: 5052, 5754 | O, H112, H114 |
6xxx:6061 | T6 |
Bar type | Diamond plate | 5 bar plate |
Bar height | 0.0393”, +/-0.0157” | 0.0393”, +/-0.0157” |
1.0mm, +/-0.4mm | 1.0mm, +/-0.4mm |
Bar length | 1.299”, +/-0.0787” | 1.771”, +/-0.118” |
33mm, +/-2.0mm | 45mm, +/-3.0mm |
Dimension: | Thickness: | Width: | Length: |
Range | 0.045”~0.25”, | 8”~60”, | 36”~288”, |
1.143mm~6.35mm | 200mm~1524mm | 914mm~7315mm |