___________________________________________________________________
ALLOWANCES FOR WEIGHT OF BOLTS - HEAVY SIZE
___________________________________________________________________
Diameter in
Pounds in
Inches
100 units
___________________________________________________________________
1/2
20.0
5/8
36.0
3/4
61.0
7/8
92.0
1
135.0
1-1/8
190.0
1-1/4
250.0
1-1/2
430.0
1-3/4
685.0
2
1,000.0
2-1/4
1,400.0
2-1/2
1,885.0
2-3/4
2,430.0
3
3,210.0
___________________________________________________________________
Note: Allowances for bolts are based on weight data given in AISC manual.
Allowances consist of weight of square head, bolt shank (in and projecting
beyond nut) and hexagonal nut and shall apply to all type bolts without
modification. Projections beyond nuts are assumed equal to 1/2 the bolt
diameter up to M50 2 inch size bolts and 25 mm 1 inch for bolt sizes M50 2
inch and above. Where the number and size of another type of bolt would
result in a significant difference in a pay item the allowances given above
should be supplemented to include the additional type of bolt.
___________________________________________________________________
ALLOWANCES FOR WEIGHT OF CUT WASHERS
___________________________________________________________________
Bolt Diameter in
Kilograms of
Millimeters
100 units
___________________________________________________________________
13
2.02
16
4.04
19
5.94
22
7.21
25
9.71
29
11.70
32
15.20
35
20.10
38
22.00
44
28.80
50
35.90
57
48.50
64
57.60
70
68.90
75
84.40
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SECTION 05055A
Page 9
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