Grommet & Flange Mounting Dimensions

Grommet
Number
Description Hole Size Max Panel
Thickness
127-18 Grommet, rectangle, flush mount, black 3.50" x 2.40" 0.16"
127-181 Grommet, rectangle, flush mount, white 3.50" x 2.40" 0.16"
142-17 Grommet, round, raised mount 2.75" diameter 0.18"
142-18 Grommet, round, recess mount 3.125" diameter 0.18"
142-181 Grommet, round, recess mount 3.125" diameter 0.18"
143-17 Grommet, round, flush mount, closed-back 3.125" diameter 0.15"
143-18 Grommet, round, flush mount 2.75" diameter 0.25"
144-18 Grommet, round, flush mount, closed-back 2.75" diameter 0.075"
146-18 Grommet, round, flush mount 2.25" diameter 0.25"
146-181 Grommet, round, raised mount 2.125" diameter 0.25"
146-182 Grommet, round, flush mount, closed-back 2.25" diameter 0.25"
146-184 Grommet, round, raised mount 2.25" diameter 0.17"
150-18 Grommet, rectangle, flush mount 2.88" x 1.53" 0.25"
150-181 Grommet, rectangle, flush mount 3.00" x 1.65" 0.25"
177-18 Grommet, round, flush mount 0.75" diameter 0.20"
421-18 Grommet, oval, flush mount 2.50" x 6.75" 1.25" r. corners 0.0179 - 0.25"
426-18 Grommet, round, flush mount 4.50" diameter 0.25"
450-18 Grommet, rectangular, flush mount 5.43" x 3.58" 0.23"
850-18 Grommet, rectangular, flush mount 5.43" x 3.58" 0.375"
Dimensions given are for reference only. Due to various panel thickness, the size of the hole may need to be adjusted.


Lamp Series w/Flange Lamp Type Mounting Hole Diameter
411, 413, 418, 424, 425, 818, 824 4" Round 4.5"
350F, 354F, 423, 822, 823, 2875 Oval 6.75" x 2.5"
162, 163, 192, 193 2 1/2"Round 2.75"
146, 164, 165, 194, 195 2"Round 2.25"