Allowable loads on one bolt in seasoned wood loaded at both ends in normal duration

The content of this page is for educational purposes only and is not intended for professional work.

 

Table TMBR-4: Allowable loads, in kiloNewton, on one bolt in seasoned wood loaded at both ends (double shear) normal duration
Length of Bolt in Main Member
(mm)		 Bolt Diameter
(mm)
Species Group
I II III IV
Parallel to Grain Perpencular to Grain Parallel to Grain Perpencular to Grain Parallel to Grain Perpencular to Grain Parallel to Grain Perpencular to Grain
40 13 7.08 3.76 4.86 1.98 4.20 2.07 3.26 1.82
16 8.75 4.19 6.01 2.21 5.20 2.30 4.01 2.02
20 11.00 4.85 7.55 2.56 6.53 2.67 5.02 2.35
22 12.10 5.04 8.30 2.66 7.19 2.77 5.52 2.43
25 11.70 5.47 9.43 2.89 8.16 3.01 6.27 2.64
50 13 8.38 4.70 5.75 2.48 4.98 2.59 3.99 2.27
16 10.80 5.23 7.42 2.76 6.43 2.88 5.00 2.53
20 13.70 6.07 9.38 3.20 8.12 3.34 6.27 2.93
22 15.10 6.30 10.30 3.32 8.95 3.46 6.90 3.04
25 17.2 6.83 11.80 3.61 10.20 3.76 7.84 3.30
65 13 9.29 6.11 6.38 3.23 5.52 3.36 4.68 2.95
16 13.00 6.80 8.95 3.59 7.74 3.74 6.29 3.29
20 17.40 7.89 11.90 4.16 10.30 4.34 8.10 3.81
22 19.30 8.19 13.20 4.32 11.40 4.50 8.97 3.96
25 22.20 8.88 15.20 4.69 13.20 4.89 10.20 4.29
75 13 9.35 6.84 6.42 3.61 5.56 3.76 4.79 3.30
16 13.80 7.85 9.48 4.14 8.21 4.32 6.85 3.79
20 19.40 9.10 13.30 4.81 11.50 5.01 9.22 4.40
22 21.90 9.45 15.00 4.99 13.00 5.20 10.20 4.56
25 25.50 10.20 17.50 5.41 15.20 5.64 11.80 4.95
80 13 9.41 7.14 6.45 3.77 5.59 3.93 4.84 3.45
16 14.10 8.37 9.66 4.42 8.36 4.61 7.09 4.05
20 20.30 9.71 14.00 5.13 12.10 5.34 9.77 4.69
22 22.90 10.10 15.70 5.32 13.60 5.54 10.90 4.87
25 26.90 10.90 18.40 5.77 16.00 6.01 12.50 5.28
90 13 9.39 7.42 6.44 3.92 5.58 4.08 4.84 3.59
16 17.30 9.20 9.79 4.86 8.48 5.06 7.28 4.45
20 21.30 10.90 14.60 5.77 12.70 6.01 10.50 5.28
22 24.90 11.30 17.10 5.98 14.80 6.24 12.00 5.48
25 19.40 12.30 20.20 6.49 17.50 6.77 13.90 5.94
100 13 9.40 7.40 6.45 3.91 5.58 4.07 4.84 3.58
16 14.20 9.84 9.78 5.19 8.47 5.41 7.34 4.76
20 22.00 12.10 15.10 6.41 13.40 6.68 11.10 5.87
22 25.90 12.60 17.80 6.65 15.40 7.35 12.80 6.45
25 31.80 13.70 21.80 7.21 18.90 7.52 15.30 6.60
125 13 9.38 6.92 6.44 3.65 5.57 3.81 4.83 3.34
16 14.20 10.10 9.77 5.33 8.46 5.56 7.33 4.89
20 22.30 14.30 15.30 7.53 13.20 7.85 11.50 6.89
22 26.90 15.30 18.50 8.10 16.00 8.44 13.80 7.42
25 34.40 17.10 23.60 9.02 20.40 9.40 17.30 8.26
28 41.80 18.50 28.70 9.78 24.80 10.20 20.50 8.95
140 13 9.38 6.51 6.44 3.44 5.57 3.58 4.83 3.14
16 14.20 9.85 9.76 5.20 8.45 5.42 7.33 4.76
20 22.20 14.80 15.20 7.79 13.20 8.12 11.40 7.14
22 27.00 16.40 18.50 8.65 16.00 9.01 13.90 7.92
25 34.80 18.70 23.90 9.88 20.70 10.30 17.70 9.04
28 43.10 20.80 29.60 11.00 25.60 11.40 21.70 10.00
150 16 14.20 9.59 9.76 5.06 8.45 5.28 7.33 4.64
20 22.30 14.70 15.30 7.78 13.20 8.11 11.50 7.13
22 26.90 16.70 18.50 8.84 16.00 9.21 13.80 8.09
25 34.60 19.70 23.80 10.40 20.60 10.90 17.80 9.54
28 43.50 21.90 29.90 11.60 25.90 12.10 22.10 10.60
180 16 14.20 8.84 9.72 4.66 8.42 4.86 7.32 4.27
20 22.20 14.10 15.20 7.45 13.20 7.76 11.40 6.82
22 26.90 16.60 18.50 8.75 16.00 9.12 13.90 8.01
25 34.80 20.80 23.90 11.00 20.60 11.40 17.90 10.00
28 43.70 24.60 30.00 13.00 25.90 13.50 22.50 11.90
190 16 14.20 8.59 9.75 4.54 8.44 4.73 7.30 4.15
20 22.20 13.80 15.30 7.30 13.20 7.61 11.40 6.69
22 26.90 16.30 18.50 8.63 16.00 8.99 13.90 7.90
25 34.80 20.70 23.90 10.90 20.70 11.40 17.90 10.00
28 43.60 25.00 29.90 13.20 25.90 13.80 22.50 12.10
200 16 14.20 8.37 9.90 4.42 8.44 4.61 7.30 4.05
20 22.20 13.50 15.20 7.13 13.20 7.40 11.40 6.50
22 26.80 16.10 18.40 8.48 16.00 8.84 13.90 7.77
25 34.60 20.50 23.80 10.80 20.60 11.30 17.80 9.91
28 43.60 25.30 29.90 13.30 25.90 13.90 22.40 12.20
230 20 22.20 12.70 15.20 6.69 13.20 6.97 11.40 6.12
22 26.80 15.10 18.40 7.98 15.90 8.32 13.90 7.31
25 34.70 19.70 23.80 10.40 20.60 10.90 17.90 9.54
28 43.50 24.80 29.90 13.10 25.90 13.70 22.50 12.0
32 56.80 31.90 39.00 16.80 33.80 17.50 29.30 15.40
240 20 22.20 12.40 15.20 6.54 13.20 6.81 11.40 5.98
22 26.80 14.80 18.40 7.83 16.00 8.15 13.80 7.16
25 34.70 19.40 23.80 10.20 20.60 10.70 17.90 9.37
28 43.60 24.60 29.90 13.00 25.90 13.50 22.50 11.90
32 57.00 31.90 39.10 16.80 33.90 17.50 29.40 15.40
255 22 26.80 14.40 18.40 7.61 15.90 7.93 13.80 6.97
25 34.70 18.80 23.80 9.93 20.60 10.40 17.90 9.09
28 43.50 24.00 29.80 12.70 25.80 13.20 22.40 11.60
32 56.70 31.50 38.90 16.60 33.70 17.30 29.20 15.20
280 25 34.60 18.10 23.80 9.53 20.60 9.94 17.90 8.73
28 43.40 23.00 29.90 12.10 25.80 12.60 22.40 11.10
32 56.90 30.80 39.00 16.30 33.80 17.00 29.30 14.90
290 25 34.70 17.80 23.80 9.39 20.60 9.79 17.90 8.60
28 43.50 22.70 29.90 12.00 25.90 12.50 22.40 11.00
32 56.80 30.40 39.00 16.10 33.70 16.70 29.30 14.70
305 25 34.70 17.30 23.80 9.13 20.60 9.51 17.80 8.36
28 43.40 22.20 29.80 11.70 25.80 12.20 22.40 10.70
32 56.80 29.80 39.00 15.80 33.80 16.40 29.30 14.40

 

See also the Strength Group of Philippine Woods
 

Tags
Allowable Load
Allowable Load on Bolt
Length of Bolt
Bolt Diameter
double shear
Normal Load Duration
Seasoned Wood