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[Pack of 50] #14 x 3 Wood Structural Lag Screws, Black Coated Torx/Star Drive Heavy Duty Construction Wood Screw, Modified Truss Washer Head, Star Drive Bit Included.

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$12.59

$ 6 .99 $6.99

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About this item

  • 【DIMENSIONS】 - Thread Diameter 0.171" - Head Diameter 0.55" - Length 3" - Use with T30 Star Bit.
  • 【PREMIUM QUALITU】 - These Heavy-Duty wood screws are made of high-quality alloy steel, offering strength and durability, They're capable of withstanding considerable weight and pressure without bending, rusting, or breaking, making them ideal for heavy duty applications. These screws passed the 1200 Hour Salt Spray Test without coating failures. it remain smooth and fully functional even after prolonged exposure to the elements; They can endure and resist the rusting effect of sun and rain.
  • 【KNURL THREAD & SELF-TAPPING】 - The knurled shank significantly reduce drill torque requirements, and the deep, sharp threads allow easy drilling into the wood without damage. The extra sharp point makes screwing a breeze, reducing the need for pre-drilling and saving you time and effort.
  • 【MODIFIED TRUSS WASHER HEAD & STAR DRIVE】The modified truss washer head design of our structural lag screw guarantees a flush and neat finish, enhancing the overall appearance of your woodworking creations. Featuring a T30 star drive style, these wood screws ensure a safe and efficient fastening process without slipping.
  • 【APPLICATION】 - These heavy duty screws can widely use for outdoor, home and industrial applications such as deck building, log construction and timber framing.



Product Description

lag 1
lag 2
lag 3
lag 4

Andrew P.
September 3, 2025
I went through a box of these in less than a year, and when I needed more, I chose the same brand. It does come with a bit, but more importantly, I like the container. Durable with two plastic latches, I can use this container for other things for a few more years. Perfect for small screws used for electrical work or maybe clamps used in plumbing.
Jeffrey Blomquist
August 5, 2025
These lag screws were the perfect length and color for the installation of my security door...
Express
July 29, 2025
The more expensive structural screws start much easier than this item. However, if you start the screw by giving it a firm strike with a hammer (like a nail), it takes no effort to start the screw and drive it home.
P. Dilutis
July 2, 2025
These are very sturdy and come with the corresponding drill bit. The bit is very sturdy and I have been able to use it for more than just one box although each box contains one already.
Bahman Aghdaie
June 23, 2025
Flange prevents the lumber from spliting and provides better clamping.Didn't have to purchase a large quantity at high cost.
Bus Boss
May 30, 2025
Good design, used to build up a replacement beam on a 110yo camp. I actually used the 3" long ones to pull two 2x6x10's together first, then added a 3rd board and used these. Some of the boards were warped, but the design of these really pulled them tightly together. Very good price!
Donald Carr
May 20, 2025
they worked great . also had great pull down.
J Eubanks
April 9, 2025
I bought these as a cheap alternative to Spax. They aren't quite as well-made as Spax screws, but they do drive in well and seem to hold well. I am using them in less critical applications, but after comparing them to Spax, when I need to hang something like a shelf holding heavy items, I reach for the Spax.However, these do have their place, and I would purchase them again and use them where I can get away with it.
Mike Beckett
March 8, 2025
Works well
Mike Beckett
February 27, 2025
Works well
Bizzo
February 8, 2025
i havent used them yet, but they are good quality and will work good.
gordon hampton
February 1, 2025
Used them for building garage lean to, great product
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