Direct Tension Indicator Washers for use with ASTM A325-M / A490-M bolts.
| Nominal Diameter mm | Type 8.8 | Type 10.9 | All Types | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outside Diameter OD in mm | Number of Protrusions(Equally Spaced) | Without Protrusions min |
With Protrusions max |
Outside Diameter OD in mm | Number of Protrusions(Equally Spaced) | Without Protrusions min |
With Protrusions max |
Inside Diameter ID UNCOATED in mm | Protrusions Tangential Diameter PTD max in mm | ||||
| min | max | min | max | min | max | ||||||||
| M16 | 35.2 | 36.8 | 4 | 3.2 | 5.5 | 35.2 | 36.8 | 4 | 3.6 | 6.0 | 16.75 | 16.85 | 25.0 |
| M20 | 44.0 | 46.0 | 5 | 3.6 | 6.0 | 44.0 | 46.0 | 6 | 3.6 | 6.0 | 20.95 | 21.05 | 29.0 |
| M22 | 48.4 | 50.6 | 5 | 3.6 | 6.0 | 48.4 | 50.6 | 6 | 4.0 | 7.0 | 23.05 | 23.15 | 33.0 |
| M24 | 52.8 | 55.2 | 5 | 4.0 | 7.0 | 52.8 | 55.2 | 6 | 4.0 | 7.0 | 25.15 | 25.25 | 38.0 |
| M27 | 59.4 | 62.1 | 6 | 4.0 | 7.0 | 59.4 | 62.1 | 7 | 4.0 | 7.0 | 28.30 | 28.40 | 43.0 |
| M30 | 66.0 | 69.0 | 7 | 4.0 | 7.0 | 66.0 | 60.0 | 8 | 4.8 | 7.5 | 31.45 | 31.55 | 46.5 |
| M36 | 79.2 | 82.8 | 8 | 4.8 | 7.5 | 79.2 | 82.8 | 9 | 4.8 | 7.5 | 31.75 | 37.85 | 56.0 |
| Nominal direct tension indicator for use with fasteners of the same nominal diameter.. All dimensions are in Millimeter | |||||||||||||
| Availability & Supply | ||
|---|---|---|
| Size | Circular - Type | Flower - Type |
| M16 | Yes | Yes |
| M20 | Yes | Yes |
| M22 | Yes | Yes |
| M24 | Yes | Yes |
| M27 | Yes | Yes |
| M30 | Yes | Yes |
| M36 | Yes | Yes |
Direct Tension Indicator Washers for use with ASTM A325 / A 490 inches Series Structural bolts.
Materials: Carbon Steel in accordance with ASTM 959.
Finish Available: Black & Hot Dip Galvanized
| DTI Washer Size | All Types | Type 325 | Type 325 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thickness, In | Thickness, In | ||||||||||||
| Inside Diameter ,br>A, In | Maximum Protrusions Tangential Dia, B, In |
Outside Diameter c, In |
Number of Equally Spaced S |
Without Protrusions E |
With Protrusions F |
Outside Diameter c, In |
Number of Equally Spaced S |
Without Protrusions E |
With Protrusions F |
||||
| min | max | min | max | min | max | min | max | min | max | ||||
| 1/2" | 0.523 | 0.527 | 0.788 | 1.167 | 1.187 | 4.000 | 0.104 | 0.180 | 1.355 | 1.375 | 5 | 0.104 | 0.180 |
| 5/8" | 0.654 | 0.658 | 0.956 | 1.355 | 1.375 | 4.000 | 0.126 | 0.220 | 1.605 | 1.625 | 5 | 0.126 | 0.220 |
| 5/8" option | 0.654 | 0.658 | 0.956 | N/A | N/A | N/A | N/A | N/A | 1.355 | 1.375 | 4 | 0.126 | 0.220 |
| 3/4" | 0.785 | 0.790 | 1.125 | 1.605 | 1.625 | 5.000 | 0.126 | 0.230 | 1.730 | 1.750 | 6 | 0.142 | 0.240 |
| 7/8" | 0.917 | 0.921 | 1.294 | 1.855 | 1.875 | 5.000 | 0.142 | 0.240 | 1.980 | 2.000 | 6 | 0.158 | 0.260 |
| 1" | 1.048 | 1.052 | 1.463 | 1.980 | 2.000 | 6.000 | 0.158 | 0.270 | 2.230 | 2.250 | 7 | 0.158 | 0.270 |
| 1-1/8" | 1.179 | 1.183 | 1.631 | 2.230 | 2.250 | 6.000 | 0.158 | 0.270 | 2.480 | 2.500 | 7 | 0.158 | 0.280 |
| 1-1/4" | 1.311 | 1.315 | 1.800 | 2.480 | 2.500 | 7.000 | 0.158 | 0.270 | 2.730 | 2.750 | 8 | 0.158 | 0.280 |
| 1-3/8" | 1.442 | 1.446 | 1.969 | 2.730 | 2.750 | 7.000 | 0.158 | 0.270 | 2.980 | 3.000 | 8 | 0.158 | 0.280 |
| 1-1/2" | 1.573 | 1.577 | 2.980 | 2.980 | 3.000 | 8.000 | 0.158 | 0.270 | 3.230 | 3.250 | 9 | 0.158 | 0.280 |
All data for information purpose only. For more details on product standards or dimensions, please feel free to contact us at centuryboltcentre@gmail.com