Bolt Loading Capacities HSFG Non - Preloaded

Engineering ISO Metric Hardware Design Data
Engineering ANSI Hardware Design Data

See Explanatory notes given below table. BS 5950-1: 2000 BS 4190: 2001

Bolt Loading Capacities Table

High Strength Friction Grip (HSFG) Bolts

Non - Preloaded HSFG Bolts
General Grade HSFG Bolts Material S355

Diameter
of
Bolt
mm
Tensile
Stress
Area
At
mm²
Tension
Capacity
Shear
Capacity

Bearing Capacity in kN (Minimum of Pbb and Pbs)
End distance equal to 2 x bolt diameter

Thickness in mm of ply passed through

Nominal
0.8 At pt
P nom
kN
Exact
At pt
Pt
kN
Single
Shear
Ps
kN
Double
Shear
2 Ps
kN
5
6
7
8
9
10
12
15
20
25
30
12
84.3
39.8
49.7
33.7
67.4
33.0
39.6
46.2
52.8
59.4
66.0
79.2
99.0
132
165
198
16
157
74.1
92.6
62.8
126
44.0
52.8
61.6
70.4
79.2
88.0
106
132
176
220
264
20
245
116
145
98.0
196
55.0
66.0
77.0
88.0
99.0
110
132
165
220
275
330
22
303
143
179
121
242
60.5
72.6
84.7
96.8
109
121
145
182
242
303
363
24
353
167
208
141
282
66.0
79.2
92.4
106
119
132
158
198
264
330
396
27
459
189
236
161
321
74.3
89.1
104
119
134
149
178
223
297
371
446
30
561
231
289
196
393
82.5
99.0
116
132
149
165
198
248
330
413
495

 

The tensile stress area (At ) is obtained from standards

The tension capacity of the bolt is given by:

Pnom = 0.8ptAt Nominal

Pt = ptAt Exact

Where:

pt is the tension strength of the bolt.

The shear capacity of the bolt is given by

PS = ps As

where:

ps is the shear strength of the bolt
As is the shear area of the bolt.

In the table, As has been taken as equal to At .

The shear capacity given in the tables must be reduced for large packings, large grip lengths, kidney shaped slots or long joints when applicable.

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