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Prime-Line 9056978 Hex Lag Screws, 1/2 x 4 In., A307 Grade-A Hot Dip Galvanized Steel (25 Pack)

5.0 (3) Write Review
Free shipping on orders over $29.99

$44.69

$ 20 .99 $20.99

In Stock

About this item

  • Size: 1/2 inch X 4 inch
  • Heavy duty wood screw with 6 sided hex bolt head
  • Features deep wood screw threads and does not accept a nut
  • Used in applications where standard wood screws cannot support the load (deck building, etc.)
  • Requires pilot hole to be drilled and installs using wrench or socket tool


Lag screw bolts are used in place of standard wood screws whenever the mounting surface must bear a heavy load. The hex head allows for lag screws to be tightened with more torque than can be used on Phillips head screws, though a pilot hole is still required prior to installation. Note that lag screws do not accept nuts as they are technically thick heavy duty wood screws with threads designed to cut into wood. They are ideal for use on decks since installation can be accomplished without having access to both ends of the fastener, as opposed to standard hex bolts that require a nut on the opposite end.


Tim E.
Reviewed in the United States on May 13, 2023
Package arrived with a single loose lag bolt. Where are the other 24?
Awoo
Reviewed in the United States on January 9, 2023
These work great for building my deck, and as good as the ones I got from the big box store. The clincher is the price -- a box of 25 from them is over sixty-eight bucks! So for nearly a third of the price AND 1-day shipping is a no-brainer.
Ian Pruitt
Reviewed in the United States on October 30, 2020
Working great to secure my safe to the floor and I have several more for any future safes or projects.