Prime-Line Door Knob Lock-Out Device, Gray

Updated October 19, 2026

This auction ended on October 21, 2026. See upcoming auctions from Rockey Auctions.

Lot number	30r
Auction	1081 HOME IMPROVEMENT AUCTION ~MILTON~
Date	October 21, 2026 at 4:00 PM EDT
Auction house	Rockey Auctions
Location	NORTHUMBERLAND, Pennsylvania

Brand: Prime-Line Model: EP 4180 Retail Price: $14 This Defender Security doorknob lock-out device is designed to be mounted directly over the entry doorknob to prevent access to the keyhole only, effectively preventing unauthorized access by key. The durable, diecast cylinder is held in place with a removable O-ring for cleaning the cylinder when the lock-out device is unlocked and open. The cylinder cannot be removed when the device is closed and locked. This lock-out device is often used in evictions, rentals, home sales, on job sites, in-home, on in-office storage room knobs to keep other keyholders out, even if they have a key to the door. It is a quicker and easier solution than replacing the entire knob and lock system on a door while still getting the protection you need. The maximum outside diameter of a round knob that can be secured with this device is 2-7/16 inch.. Specially designed to lock your doorknob effectively. Gray-finished die-cast construction ensures prolonged use. Features a keyed-alike lock that offers convenient use. Builders Hardware Product Type: Other Door Hardware. Commercial/Residential: Residential. Finish: Gray. Hardware Color Family: Gray. Material: Cast Metal. Pack Size: 1. Package Quantity: 1 Disclaimer : DISCLAIMER: This listing contains a stock image of the item to be auctioned, in order to illustrate the item’s design and functionality when new. However, this stock image is provided for ILLUSTRATION PURPOSES ONLY and cannot be relied upon by any bidder. Instead, actual photos of the specific item up for auction are provided within the gallery. Any written overview regarding features, operations, or capabilities reflects the item’s original specification when new and does not guarantee current condition or complete performance. The absence of any description by Rockey Auction of the item to be auctioned does not establish an implied representation that it is new or functional. It is a bidder's sole responsibility to inspect all actual product photos, read descriptions carefully, and perform any desired pre-bid inspections or inquiries. Bids placed constitute full acknowledgment and satisfaction with the item's condition along with Rockey Auction’s terms AND CONDITIONS of sale, which can be found in full in the tab below.

Prime-Line Door Knob Lock-Out Device, Gray

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