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One-way lag screws, also known as security screws are commonly used in applications where either theft or vandalism is common or expected. Common applications include safes, security gates, public restroom fixtures and enclosures, and other scenarios requiring greater security. Heat-treated and made high quality, this screw meets strict standards having virtually no chance of shearing. This screw is designed with a slotted drive for simple installation with a standard slotted screwdriver. For greater security, the one-way lag screw requires an extraction tool for removal. Use this screw in a pre-drilled hole to prevent snapping.
From the Manufacturer
One way lag screw, when installed cannot be removed by conventional tools providing security from someone trying to take it apart. Lag Screws are used for directly fastening into wood surfaces. They are used with a lag shield, and lag screws can be used in masonry applications.
erick
2025-07-21 17:49:46
Used these to put a metal mesh door on my homes front door. They hold up great. Just pre drill a hole through the concrete and a bit into the wood frame and youre set
Javier Montes
2025-06-12 10:53:01
They worked really well
Andrew L.
2025-03-24 15:36:18
much better price than home depot!
Francis m.
2025-03-12 21:46:24
Good screw but missing one order 50 but received 49 if it was a small screw I don’t mind but this is a 3 inch one way security screw
Travis
2025-02-16 11:06:18
Very stout screws. Works great and is perfect for one direction security screws
Bird jones
2025-01-26 13:16:05
Good luck getting them out.....!!!!
Wally Cat
2025-01-19 14:40:12
High quality lag screws at a reasonable price.
DZW
2024-12-07 16:27:12
They won’t come out without a lot of effort. Meets the need for trail markers on my property.
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