Chapter 3: Hardware Requirements
*This table applies to flat surfaces under the bolt head and nut.
*This symbol “≤” represents “Less than or equal to”.
*This symbol “>” represents “Greater than”.
Snug-Tightened Bolts
1. All hardware in bracing locations is tightened to a “snug-tight” condition.
2. The snug-tight condition is a tightness required to bring the connected plies into firm contact.
3. Snug-tight condition can be attained by a few impacts of an impact wrench or the full effort put by
worker with an ordinary spud wrench.
4. Bolts to be tightened to a condition other than snug-tight shall be clearly identified on design
drawings.
Washer Location
1. Washers are used to cover the slotted holes in an outer ply.
2. Washers are need to be placed under the turning element.
Reuse of A325 Bolts
Galvanized A325 bolts should not be reused after they have been tightened.
Bolt Length
The bolts used should have length that the end of the bolt extends beyond the nut or at least flush
with outer surface of the nut.
Splice Kit Hardware
Splice Hardware
Usage
Bolt
Nut
Washer
Part
Number
Description
Part
Number
Description
Part
Number
Description
4" Column, 1/2"
Splice Plate
S-8557
Bolt HHCS 7/8-
9 x 2-1/
4 GV A325
S-8364
Nut Hex 7/8-
9 GV A325
S-8560
Washer Flat 7/
8 GV A325
4"-6" Transition,
1/2"-3/4" Splice
Plate
S-10454
Bolt HHCS 1-8 x
2-3/4 GV A325
S-10488
Nut, Hex 1-
8 GV A563
S-10496
Washer, Flat
1 GV F436
6" Column, 3/4"
Splice Plate
S-10455
Bolt HHCS 1-8 x
3 GV A325
S-10488
Nut, Hex 1-
8 GV A563
S-10496
Washer, Flat
1 GV F436
6" Column, 1"
Splice Plate
S-10457
Bolt HHCS 1-8 x
3-1/2 GV A325
S-10488
Nut, Hex 1-
8 GV A563
S-10496
Washer, Flat
1 GV F436
8" Column, 1"
Splice Plate
S-10472
Bolt HHCS 1-1/
4-7 x 3-1/2 GV
A325
S-10490
Nut, Hex 1-1/4-
7 GV A325
S-10497
Washer, Flat
1-1/4 GV
F436
10" Column, 1"
Splice Plate
S-10508
Bolt HHCS 1-1/
2-6 x 3-1/2 GV
A325
S-8624
Nut, Hex 1-1/2-
6 GV
S-10498
Washer,Flat1-
1/2 GV F436
PNEG-2115
2-Leg and 4-Leg Towers
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