ROUND HOLES
What hole diameter do you need?


No. 7/0 Straight


Not to scale
.010" dia. (.254 mm)
.016" centers (.406 mm)
3906 holes per sq. in.
30% open

30 B&S ga. Brass


No. 4/0 Straight


Not to scale
.016" dia. (.406 mm)
.026" centers (.0660 mm)
1479 holes per sq. in.
30% open

26 B&S ga. Brass
.008" Stainless


No. 4/0 Staggered


Not to scale
.016" dia. (.406 mm)
.0346" centers (.879 mm)
1109 holes per sq. in.
22% open

26 B&S ga. Brass


No. 00 Straight

Not to scale
.020" dia. (.508 mm)
.030" centers (.762 mm)
952 holes per sq. in.
30% open

26 B&S ga. Brass
26 ga. Steel
.008" Stainless

22 B&S ga. Aluminum


No. 00 Staggered


Not to scale
.020" dia. (.508 mm)
.040" centers (1 mm)
714 holes per sq. in.
22% open

26 B&S ga. Brass
26 ga. Steel
.008" Stainless


No. 0 Straight


Not to scale
.024" dia. (.609 mm)
.044" centers (1.118 mm)
516 holes per sq. in.
23% open

26 B&S ga. Brass
26 ga. Steel


No. 0 Staggered


Not to scale
.024" dia. (.609 mm)
.060" centers (1.524 mm)
379 holes per sq. in.
17% open

26 ga. Steel


No. 1 Straight


Not to scale
.027" dia. (.685 mm)
.050" centers (1.270 mm)
400 holes per sq. in.
23% open

26 B&S ga. Brass
26 ga. Steel


No. 1-1/2 Staggered


Not to scale
.030" dia. (.762 mm)
.060" centers (1.524 mm)
379 holes per sq. in.
27% open

24 ga. Steel


No. 2 Straight


Not to scale
.033" dia. (.838 mm)
.055" centers (1.397 mm)
331 holes per sq. in.
28% open

26 B&S ga. Brass
26 ga. Stainless

24 ga. Steel
22 B&S ga. Aluminum


No. 2 Staggered


Not to scale
.033" dia. (.838 mm)
.077" centers (1.956 mm)
236 holes per sq. in.
20% open

24 ga. Steel


No. 2-1/2 Straight


Not to scale
.038" dia. (.965 mm)
.050" centers (1.270 mm)
400 holes per sq. in.
45% open

26 B&S ga. Brass
24 ga. Steel


No. 2-1/2 Staggered


Not to scale
.038" dia. (.965 mm)
.066" centers (1.676 mm)
303 holes per sq. in.
34% open

24 ga. Steel


No. 3 Straight


Not to scale
.040" dia. (1.016 mm)
.066" centers (1.676 mm)
230 holes per sq. in.
29% open

26 B&S ga. Brass
24 ga. Steel


© Harrington & King Perforating Company, Inc. 2016