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Prime-Line 9056009 Hex Lag Screws, 5/16 In. X 6 In., A307 Grade A Hot Dip Galvanized Steel (15 Pack)

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$16.74

$ 8 .99 $8.99

In Stock

About this item

  • Size: 5/16 inch X 6 inch (1/2 inch hex head, 3-1/2 inch thread length and 9 threads per 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
  • Thread Type: Deep, Point Style: Gimlet
  • Specification(s) Met: ASME B18.2.1 and ASTM A307A


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.


Customer
Reviewed in Canada on April 25, 2024
As described
The Honest Critique
Reviewed in the United States on October 19, 2023
When the regular 6" 1/4" lagscrews I had broke during install, I purchased these 5/16" lagscrews and had no problem.
Dennis Dougherty
Reviewed in the United States on January 18, 2022
Look like good quality
Jim M. (Austin)
Reviewed in the United States on September 1, 2021
Exactly what I was looking for.
KatFishStix
Reviewed in the United States on September 6, 2020
I had to remove a few, and half snapped...cheap quality
Martha
Reviewed in the United States on September 4, 2020
Using my hammer drill I drove these their full length into multiple 2x4 studs. Very impressed and satisfied with their quality.
Ken
Reviewed in the United States on July 24, 2018
Worked great for my solar panel stand!!