Grommet & Flange Mounting Dimensions

Specs & Requirements

Grommet NumberDescriptionHole SizeMax Panel Thickness
127-18Grommet, rectangle, flush mount, black3.50″ x 2.40″0.16″
127-181Grommet, rectangle, flush mount, white3.50″ x 2.40″0.16″
142-17Grommet, round, raised mount2.75″ diameter0.18″
142-18Grommet, round, recess mount3.125″ diameter0.18″
142-181Grommet, round, recess mount3.125″ diameter0.18″
143-17Grommet, round, flush mount, closed-back3.125″ diameter0.15″
143-18Grommet, round, flush mount2.75″ diameter0.25″
144-18Grommet, round, flush mount, closed-back2.75″ diameter0.075″
146-18Grommet, round, flush mount2.25″—2-5/16″ diameter0.25″
146-181Grommet, round, raised mount2.125″ diameter0.25″
146-182Grommet, round, flush mount, closed-back2.25″ diameter0.25″
146-184Grommet, round, raised mount2.25″ diameter0.17″
150-18Grommet, rectangle, flush mount2.88″ x 1.53″0.25″
150-181Grommet, rectangle, flush mount3.00″ x 1.65″0.25″
177-18Grommet, round, flush mount0.75″ diameter0.20″
421-18Grommet, oval, flush mount2.50″ x 6.75″ x 1.25″ r. corners0.0179 – 0.25″
426-18Grommet, round, flush mount4.50″ diameter0.25″
450-18Grommet, rectangular, flush mount5.43″ x 3.58″ x 1.0″ r. corners0.23″
850-18Grommet, rectangular, flush mount5.43″ x 3.58″ x 1.0″ r. corners0.375″

Lamp Series w/FlangeLamp TypeMounting Hole Diameter
411, 413, 418, 424, 425, 818, 8244″ Round4.5″
350F, 354F, 423, 822, 823, 2875Oval6.75″ x 2.5″
162, 163, 192, 1932 1/2″Round2.75″
146, 164, 165, 194, 1952″Round2.25″
853FRectangular5.0″ x 3.13″ x 0.67″ r. corners