National Manufacturing Co.
National Manufacturing Co. 117 3-1/2 In. x 5/8 In. Zinc Flat Corner Iron 4-Count window hardware
Zinc-plated steel corner irons reinforce joints with four pre-drilled holes and included screws
- MaterialSteel
- Selling UnitPack
- Zinc-plated steel resists corrosion for long-lasting window repairs
- Four pre-drilled holes simplify installation on sash corners
- Screws included in the pack so no extra fasteners are needed
- Model 117 series fits standard 3-1/2 inch corner joints
Zinc Flat Corner Iron 4-Count
National Manufacturing Co. model 117 supplies four zinc-plated steel corner irons measuring 3-1/2 inches by 5/8 inches with four pre-drilled holes each. Screws are included so the pack is ready for immediate installation on doors or windows.
DIY installers reinforcing frames
Homeowners and DIY installers who need a small pack of flat corner brackets for standard frame reinforcement will find this quantity convenient. Builders requiring larger bulk packs, alternative finishes or different dimensions should look at other options.
Highlights
- Zinc-plated steel resists corrosion for long-lasting window repairs
- Four pre-drilled holes simplify installation on sash corners
- Screws included in the pack so no extra fasteners are needed
- Model 117 series fits standard 3-1/2 inch corner joints
Specifications
| Material | Steel |
|---|---|
| Selling Unit | Pack |
Questions about this item
What size screws do the 4 holes on this corner iron accept?
The pack includes matching screws for the four pre-drilled holes, so no separate fasteners are needed.
Will the zinc-plated finish react with the brass hinges already on my window?
Zinc-plated steel is compatible with brass hardware; no galvanic reaction occurs under normal indoor conditions.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



