Direct Tension Indicators Washer – dimensions
Dimensions of compressible washer-type direct tension indicator according to BS EN 14399-9:2018, Table 2.
| Size bolt diameter | Internal diameter d1 | External diameter d2 | Thickness h1 | Height over protrusion h2 | Height of protrusions h3 | Protrusion tangential diameter d3 | Protrusion internal diameter d4 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | min | max | min | max | min | |||||
| M12 | 12,75 | 12,85 | 26,0 | 32,5 | 2,5 | 5,5 | 0,8 | 20,0 | 13,85 | ||||
| M16 | 16,75 | 16,85 | 35,0 | 36,8 | 3,0 | 6,0 | 0,8 | 25,0 | 17,85 | ||||
| M20 | 20,95 | 21,05 | 41,0 | 46,0 | 3,5 | 6,5 | 0,8 | 29,0 | 22,05 | ||||
| M22 | 23,05 | 23,15 | 46,5 | 50,6 | 4,0 | 7,0 | 0,8 | 33,0 | 24,15 | ||||
| M24 | 25,15 | 25,25 | 50,0 | 55,2 | 4,0 | 7,0 | 0,8 | 38,0 | 26,25 | ||||
| M27 | 28,30 | 28,40 | 54,0 | 62,1 | 4,0 | 7,0 | 0,8 | 43,0 | 29,40 | ||||
| M30 | 31,45 | 31,55 | 59,0 | 69,0 | 4,0 | 7,0 | 0,8 | 46,5 | 32,55 | ||||
| M36 | 37,75 | 37,85 | 78,0 | 83,0 | 4,0 | 7,5 | 0,8 | 56,0 | 38,85 | ||||
Dimensions in millimetres
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