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Prime-Line EP 4180 Doorknob Lock-Out Device – Doorknob Lock with Key to Block Access to Keyhole, Removeable and Easy to Use, Fits Round Doorknobs with Max Diameter of 2-7/8 in., Gray (Single Pack)
✅ In stock
F
Grade
Analysis Confidence
63%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 2:29 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉A lower price did appear very recently, suggesting the market may revisit that level before long.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
Product Details
✓Ideal Use: Blocks access to the keyhole of keyed entry doorknobs for rentals, evictions, home sales, job sites, office storage rooms, and temporary access control applications
✓Dimensions & Compatibility: Fits round doorknobs up to 2-7/16 in. in outside diameter and features a 1-3/16 in. circular shaft opening; designed for compatible keyed entry doorknobs
✓Materials & Components: Durable diecast cylinder and lock-out housing with removable O-ring retention system; includes keys and lock-out device
✓Key Features: Covers the keyhole to prevent access by other keyholders, removable cylinder for cleaning when unlocked, and reusable design that installs without replacing existing door hardware
✓Fit Guidance: Measure the outside diameter of the doorknob and shaft area before purchasing; this device blocks key access only and is intended for use on locked keyed-entry doorknobs
⚙️ Specifications
Brand
PRIME-LINE
Special Feature
Key Lock
Lock Type
Key Lock
Item dimensions L x W x H
2.31 x 6 x 8 inches
Material
Diecast
Brand Name
PRIME-LINE
Recommended Uses For Product
Evictions, rentals, home sales, job sites, in-home storage, in-office storage
Number of Pieces
1
Included Components
Lock out device and 2 keys
Model Number
EP 4180
UPC
049793941800