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Prime-Line 9056372 Hex Lag Screws, 3/8 In. X 4 In., A307 Grade A Zinc Plated Steel (50 Pack)

Free shipping on orders over $29.99

$38.28

$ 18 .99 $18.99

In Stock

1.Size:3/8 In. -16


About this item

  • Size: 3/8 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.


Claydog
Reviewed in the United States on February 20, 2025
Looked and seem heavy-duty but didn't need to use them
pascal albert
Reviewed in Canada on August 20, 2021
Excellent
George D.
Reviewed in the United States on May 8, 2021
Good quality
tedatco
Reviewed in the United States on May 22, 2019
I used them to hang 2 x 4 studs on the ceiling of my garage. I hung a ceiling shelf (8' x 16') for storage. The studs worked great. Good value.
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