Locking Knobs and various dog door parts
Black locking knobs and nuts for Magnador pet doors in the size large
Small locking knobs for the plastic pet door frame for Magnador doors
Diagram showing that the bolt locking knob is located at the bottom corners of the Magnador pet door, right next to the flap
The logo for Lakeside Products, which specializes in economy-priced pet door that is easily installed into doors, walls, kennels, and more
Medium-sized locking knobs for and nuts for secure Magnador pet doors
Large locking knobs for added security for large Magnador Pet Doors

Magnador Nut & Bolt Locking Knob Set

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  • Replaces the existing locking knobs on your pet door frame
  • Pet door replacement parts available in black only
  • Sets are specific to pet door size: small or medium and large
  • Locking nuts do not included the outside frame replacements

The Magnador nut and bolt set serves to replace the old or damaged locking knobs on your Magnador pet door. Magnador dog door replacement parts only work for Magnador doors and are not usable for other brands of pet door. The nut and bolt sets are specific to the size of your pet door, so make sure you select the correct size. These dog door parts are only available in black. Choose between small/medium and large.

For more doggy door replacement parts see Magnador replacement flaps and parts.

Size Chart

Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionStock Nr
Small6" w x 8" h6 5⁄8" w x 9 5⁄16" h7 7⁄8" w x 10 1⁄2" h19MDnb Mini
Medium11" w x 13" h11 7⁄16" w x 14" h13" w x 15 5⁄8" h19MDnb MagI
Large13" w x 19 3⁄4" h14 1⁄2" w x 22 7⁄16" h16 7⁄8" w x 23 3⁄4" h19MDnb MagII



Lakeside Products warrants to the original purchaser this product to be free of defects in materials and workmanship for a period of one year from the date of purchase (proof of purchase required). Specific exclusions from this warranty include damage caused by accident, improper installation or abuse, including damage caused by pets. Lakeside Product's maximum liability on any claim shall be no greater than the original purchase price of the product. Under no circumstances shall Lakeside Products be responsible for consequential damage resulting from the use or miss-use of this product. For warranty claims, please return defective product or part, including PROOF of PURCHASE DATE, freight prepaid, to Lakeside Products for repair or replacement. Purchaser is responsible for return shipping and handling charges. This warranty is the only warranty made by Lakeside Products and replaces any and all previous warranties. 

Installation Instructions

Step 1: Unscrew and remove the old knobs.

Step 2: Line up the new knobs with with holes on the bottom of the flap.

Step 3: Screws in the new knobs.

Additional Information



Flap Colors


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