Metric Calculation Tables, (click here for Imperial)
Dia. Of Bolts or Post to be fastened |
Dia. Of Drilled Opening |
Depth if Drilled opening | |||||||||||||||
50mm | 75mm | 100mm | 150mm | 200mm | 250mm | 300mm | |||||||||||
6mm | 12mm | 7 | gm | 11.4 | gm | 14.3 | gm | 21.4 | gm | 28.5 | gm | 1.25 | gm | 42.8 | gm | ||
20mm | 20 | gm | 28.5 | gm | 42.8 | gm | 57.1 | gm | 85.6 | gm | 3.50 | gm | 114.2 | gm | |||
16mm | 10 | gm | 14.3 | gm | 21.4 | gm | 28.5 | gm | 42.8 | gm | 1.70 | gm | 57.1 | gm | |||
10mm | 18mm | 14 | gm | 22.8 | gm | 28.5 | gm | 49.9 | gm | 64.2 | gm | 2.75 | gm | 92.8 | gm | ||
25mm | 29 | gm | 42.8 | gm | 57.1 | gm | 85.6 | gm | 114.2 | gm | 5.00 | gm | 171.2 | gm | |||
32mm | 50 | gm | 78.5 | gm | 107.0 | gm | 157.0 | gm | 214.1 | gm | 8.50 | gm | 285.4 | gm | |||
18mm | 11 | gm | 17.1 | gm | 25.7 | gm | 35.7 | gm | 49.9 | gm | 2.00 | gm | 71.4 | gm | |||
12mm | 25mm | 29 | gm | 42.8 | gm | 57.1 | gm | 85.6 | gm | 114.2 | gm | 5.00 | gm | 171.2 | gm | ||
32mm | 50 | gm | 71.4 | gm | 99.9 | gm | 171.2 | gm | 199.8 | gm | 9.00 | gm | 299.7 | gm | |||
45mm | 114 | gm | 171.2 | gm | 228.3 | gm | 342.5 | gm | 456.6 | gm | 1.25 | gm | 684.9 | gm | |||
25mm | 23 | gm | 35.7 | gm | 49.9 | gm | 71.4 | gm | 99.9 | gm | 1.25 | gm | 142.7 | gm | |||
16mm | 32mm | 43 | gm | 64.2 | gm | 92.8 | gm | 135.6 | gm | 185.5 | gm | 8.00 | gm | 271.1 | gm | ||
45mm | 114 | gm | 164.1 | gm | 228.3 | gm | 313.9 | gm | 456.6 | gm | 1.25 | gm | 639.2 | gm | |||
50mm | 136 | gm | 199.8 | gm | 271.1 | gm | 392.4 | gm | 547.9 | gm | 1.50 | gm | 776.2 | gm | |||
25mm | 17 | gm | 28.5 | gm | 35.7 | gm | 57.1 | gm | 71.4 | gm | 3.00 | gm | 114.2 | gm | |||
32mm | 36 | gm | 57.1 | gm | 71.4 | gm | 114.2 | gm | 142.7 | gm | 6.50 | gm | 228.3 | gm | |||
20mm | 38mm | 64 | gm | 92.8 | gm | 128.4 | gm | 185.5 | gm | 256.9 | gm | 11.00 | gm | 371.0 | gm | ||
50mm | 143 | gm | 199.8 | gm | 271.1 | gm | 399.6 | gm | 570.7 | gm | 1.50 | gm | 799.0 | gm | |||
65mm | 214 | gm | 313.9 | gm | 428.1 | gm | 639.2 | gm | 867.5 | gm | 2.40 | gm | 1,278.5 | gm | |||
38mm | 50 | gm | 71.4 | gm | 99.9 | gm | 142.7 | gm | 199.8 | gm | 8.50 | gm | 285.4 | gm | |||
25mm | 50mm | 114 | gm | 171.2 | gm | 228.3 | gm | 342.5 | gm | 456.6 | gm | 1.25 | gm | 684.9 | gm | ||
65mm | 200 | gm | 285.4 | gm | 399.6 | gm | 593.6 | gm | 799.0 | gm | 2.20 | gm | 1,187.1 | gm | |||
87mm | 428 | gm | 639.2 | gm | 867.5 | gm | 1,255.6 | gm | 1,712.2 | gm | 4.60 | gm | 2,556.9 | gm | |||
– | |||||||||||||||||
38mm | 29 | gm | 42.8 | gm | 57.1 | gm | 85.6 | gm | 114.2 | gm | 5.00 | gm | 171.2 | gm | |||
32mm | 50mm | 100 | gm | 142.7 | gm | 199.8 | gm | 285.4 | gm | 371.0 | gm | 1.00 | gm | 547.9 | gm | ||
65mm | 186 | gm | 285.4 | gm | 371.0 | gm | 547.9 | gm | 730.5 | gm | 2.00 | gm | 1,095.8 | gm | |||
75mm | 285 | gm | 428.1 | gm | 570.7 | gm | 867.5 | gm | 1,095.8 | gm | 3.10 | gm | 1,735.0 | gm | |||
107mm | 639 | gm | 913.2 | gm | 1,255.6 | gm | 1,872.0 | gm | 2,511.2 | gm | 6.90 | gm | 3,744.0 | gm | |||
50mm | 64 | gm | 99.9 | gm | 128.4 | gm | 199.8 | gm | 268.3 | gm | 12.00 | gm | 413.8 | gm | |||
38mm | 65mm | 157 | gm | 228.3 | gm | 313.9 | gm | 456.6 | gm | 639.2 | gm | 1.75 | gm | 913.2 | gm | ||
75mm | 257 | gm | 371.0 | gm | 502.2 | gm | 776.2 | gm | 1,027.3 | gm | 2.80 | gm | 1,552.4 | gm | |||
100mm | 548 | gm | 776.2 | gm | 1,050.2 | gm | 1,506.7 | gm | 2,100.3 | gm | 5.75 | gm | 3,196.1 | gm | |||
65mm | 86 | gm | 128.4 | gm | 174.1 | gm | 262.6 | gm | 349.6 | gm | 15.30 | gm | 547.9 | gm | |||
50mm | 75mm | 186 | gm | 285.4 | gm | 371.0 | gm | 593.6 | gm | 730.5 | gm | 2.00 | gm | 1,141.5 | gm | ||
100mm | 2 | gm | 684.9 | gm | 913.2 | gm | 1,369.8 | gm | 1,826.4 | gm | 5.00 | gm | 2,739.5 | gm | |||
65mm | 75mm | 100 | gm | 157.0 | gm | 199.8 | gm | 313.9 | gm | 399.6 | gm | 1.20 | gm | 639.2 | gm | ||
100mm | 371 | gm | 570.7 | gm | 776.2 | gm | 1,141.5 | gm | 1,506.7 | gm | 4.25 | gm | 2,283.0 | gm | |||
– | |||||||||||||||||
75mm | 100mm | 285 | gm | 399.6 | gm | 593.6 | gm | 799.0 | gm | 1,095.8 | gm | 3.00 | gm | 1,689.4 | gm |