Stimpson 3RRGSWBN250 Rolled Rim Grommet and Spur Washer Nickel-Plated Durable, Reliable, Heavy-Duty #3 Set (250 Sets)
Grommet (inches):
Hole Size: 15/32
Flange Diameter: .970
Length Under Flange: .255
Metal Thickness: .020
Washer (inches):
Inside Diameter: .537
Outside Diameter: .970
Metal Thickness: .020