1-3/8" Zinc Plated Steel Flush Head Hole Plugs HLPLG-095 (6 pcs.)

Diameter: 1-3/8"
Diameter 2: 1.55"
Thickness: .40"
Material: Steel
Finish: Zinc
Head Style: Flush
Type: Hole Plug
Application: 1-2/5" hole

Box of 6.

Hole plugs are used to cover a hole to prevent debris from entering.