Double Arm Tangent Crossarm Assemblies

The following tables are intended to assist in ordering a variety of Tangent Crossarm Assemblies utilizing many common crossarm sizes and hardware components. BROOKS is not limited by the sizes or styles noted. For additional information please contact BROOKS.

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A. Pole Spacing (Feet and Inches)
B. Assembly Bolt Diameters from Table 3
C. Mounting Hole Sizes from Table 4
D. Arm Size from Table 1
E. Spacer Style from Table 2
F. Phase Spacing (Feet and Inches)

Table 1 - Common sizes for solid sawn and/or laminated crossarms

Solid Sawn Code	Size
A	2-5/8" x 9-1/2"
B	3-5/8" x 7-1/2"
C	3-5/8" x 8-1/2"
D	3-5/8" x 9-1/2"
E	3-5/8" x 11-1/2"
F	5-1/2" x 7-1/2"
G	5-5/8" x 7-1/2"

Laminated Code	Size
J	2-5/8" x 9-1/2"
K	3-1/8" x 7-1/2"
L	3-1/8" x 9"
M	3-1/8" x 10-1/2"
N	3-5/8" x 7-1/2"
O	3-5/8" x 8-1/2"
P	3-5/8" x 9-1/2"
Q	3-5/8" x 11-1/2"
R	5-1/8" x 7-1/2"
S	5-1/8" x 9"
T	5-1/8" x 10-1/2"
U	5-1/2" x 7-1/2"
V	5-5/8" x 7-1/2"
W	6-3/4" x 7-1/2"

Table 2 - Spacer Fittings

Code	Spacer Style	Adjustments
1	5860*	8-3/4" to 12-3/4"
2	5861	10-3/4" to 14-3/4"
3	5862	12-3/4" to 16-3/4"
4	5870	8-3/4" to 12-3/4"
5	5871	10-3/4" to 14-3/4"
6	5872	12-3/4" to 16-3/4"
7	5840	8-1/2" to 12-1/2"
8	5841	10-1/2" to 14-1/2"
9	5842	12-1/2" to 16-1/2"

Table 3 - Spacer Fitting Mounting Bolt Size

Code	Vertical	Horizontal
45*	1/2"	5/8"
46	1/2"	3/4"
55	5/8"	5/8"
56	5/8"	3/4"
66	3/4"	3/4"

Table 4 - Mounting Bolt Size

Code	Bolt	Hole
6	3/4"	13/16"
7*	7/8"	15/16"
8	1"	1-1/16"

*Industry standard

Double Arm Ordering Code

D	X	X	-	XX	X	-	XXX	-	XXX	*
"D" (Double Arm Assembly)	Crossarm Size (Table 1)	Type of Spacer Fitting (Table 2)		Assembly Bolt Sizes (Table 3)	Pole Mounting Bolt Hole Diameter (Table 4)		Pole Spacing (Feet and Inches)		Phase Spacing (Feet and Inches)

Example

DD1-457-156-156

Double Crossarm Assembly
3-5/8" x 9-1/2" x 32' 0" Solid Sawn Crossarms
Assembled with (3) 5860 Spacer Fittings (8-3/4" to 12-3/4" adjustment) using 1/2" vertical and 5/8" Horizontal Mounting Bolts.
Drilled for 7/8" Arm Mounting Bolts.
15'-6" C/C Pole Spacing
15'-6" Phase Spacing.

Pole mounting hardware is not furnished standard as part of the assembly and should be ordered separately.
* To purchase a side arm, bored but less the assembly hardware, add a "W" to the assembly number Ordering Code.