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Internet # 317641871

Model # MP9403

Store SKU # 1006837300

Lock and Door Reinforcer, 1-3/4 in. x 2-3/4 in., Solid Brass, Polished Finish

  • Reinforces or helps repair a damaged door lock area
  • Solid brass construction for long-term durability
  • Designed to fit 1-3/4 inch thick doors only
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Product Details

About This Product

This lock and door reinforcer is constructed of solid, polished brass and fits 1-3/4 in. T doors. This security device assists in preventing forced entry by reinforcing the weak spot of an entry door, and it can be used on both metal and wood doors. Accommodates key-in knob locksets on doors that have a backset of 2-3/4 in. These door reinforcers are easy to install and they are used by many. All installation fasteners are included with this item. This guard features a 2-1/8 in. bore, 2-3/4 in. backset, 1-3/4 in. door thickness, 3-7/8 in. W, 9 in. H.


  • Used to reinforce and repair doors to aid in preventing forced entry
  • Fits 1-3/4 in. T doors with 2-3/4 in. backsets
  • Polished finish
  • Solid brass construction
  • Installation fasteners included
  • For further dimensional information, please see the line drawing
  • Return Policy

Product Information

Internet # 317641871

Model # MP9403

Store SKU # 1006837300

Additional Resources

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Dimensions: H 9 in, W 3.8758 in, D 1.75 in


Inside Diameter (in.)2.125 inProduct Depth (in.)1.75 in
Product Height (in.)9 inProduct Width (in.)3.8758 in


Builders Hardware Product TypeDoor SecurityCommercial/ResidentialResidential
Door Guard FunctionSwingFinishBrass
Hardware Color FamilyBrassHardware Finish FamilyGlass
Installation MethodScrewMaterialBrass
Package Quantity1Returnable90-Day

Warranty / Certifications

Manufacturer WarrantyGoods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.

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