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HeadLOK Structural Wood Screws – 6 inch flat head wood screws – Black (50 Pack)

$4837
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  • Heavy duty screws for wood – deck, fences & more
  • 6 inch flat headed wood screws, 8 point star bit – 50 pack
  • HeadLOK screws replace 3/8" lag bolts in a fraction of the time
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Product Details

FastenMaster TimberLOK is a hex head, heavy duty wood screw available in a variety of lengths and packaging sizes for applications such as attaching rafter or trusses to the top plate, headers, stair stringers and more. Designed to replace traditional 3/8 inch lag bolts, TimberLOK installs in a fraction of the time with fewer steps and less effort. Its sharp point and aggressive threads zip right into the densest woods. TimberLOK is tested and supported by engineering data that conforms to the most current ICC standards. It is also approved for use in ACQ or treated lumber. Includes 50, 6 inch wood screws with hex head, and 1 hex driver bit. In 1998, TimberLOK pioneered the category of structural wood-to-wood screws. Since then, TimberLOK and the rest of FastenMaster's LOK Line have been trusted by PROs everywhere.
  • Versatile structural wood screw, ideal for installing decks, fences and more
  • Includes 50, 6 inch wood screws with hex head, and 1 hex driver bit
  • The flat head installs flush saving additional time and money – combined with the black coating on the fastener, HeadLOK provides a great finished look.
  • Non-countersinking, wide head for increased loads without the need for a washer
  • Installs in a fraction of the time versus traditional bolts with fewer steps and less effort
  • Replaces 3/8 inch lag bolts with no predrilling required
  • Chamfer under head for increased strength
  • Specifically heat treated to maximize strength while maintaining ductility
  • 2" of thread for greater holding strength
  • Sharp point for fast installation
  • SpiderDrive 8 point star bit offers superior bit engagement, maximizing bit fit and reducing stripping
  • Tested and supported by engineering data that conforms to the most current ICC standards (ICC-ER ESR-1078) – approved for use in ACQ or treated lumber
  • Warrantied for the life of the project
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

Dimensions

Screw Length6 inSize3/8 in
Thread Pitch (mm)0 mmThreads Per Inch (TPI)0

Details

Drive StyleTorxFastener ColorBlack
Fastener MaterialCarbon SteelFastener PlatingGalvanized
Fastener TypeWood ScrewFeaturesNo Additional Features
Head StyleFlat HeadIncludedDriver Bit
Interior/ExteriorExteriorMeasurement StandardSAE
Package Quantity50Product Weight (lb.)2.95 lb
Returnable90-DayThread StyleCoarse

Warranty / Certifications

Manufacturer WarrantyLifetime
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Questions & Answers

4Questions
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Q:what star bit size does these 6 use? I didn't have a free bit included
by|Oct 9, 2023
1 Answer
Answer This Question

A:  Hi Anika, Thank you for reaching out. I'm sorry the Spider drive bit was missing in your box of Headloks. Can you please send your address to orders@fastenmaster.com (or call us at 1-800-518-3569) & I can further assist you. Some Home Depot stores do sell the Spider drive bit separately & the part number is FMSPIDER3-2PK. Thanks!!

by|Oct 11, 2023
    caret
    Q:If I screw these into the cut off end of a 2x4, will it split the wood without predrilling holes?
    by|Jun 15, 2020
    5 Answers
    Answer This Question

    A:  I have had this occur. I predrill the board(s) you are going through to prevent this. Looking at the design on the fastener you can see the first portion of it goes straight through and it bits into the final material so predrilling is acceptable and has prevented splitting for me.

    by|Sep 1, 2020
      1 found this answer helpful

      A:  I used them on 2x10's but i did not pre drill the holes. It did not split out the wood. I would recommend it at least an inch from the side of the wood just in case. Mine was in the main part of the post.

      by|Jul 1, 2020

      A:  I would suggest you back off about 2 inches if not pre drilling and then I had no problem

      by|Sep 1, 2020
      1 found this answer helpful

      A:  Yes you should always pre drill using a bit 30 % the size of the fastener

      by|Aug 10, 2023
      3 found this answer helpful

      A:  I screwe 2 of them into the ends of 2x8s and there was no sign of splitting. Really pulled the woo together great.

      by|Nov 13, 2020
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        Q:I have 6" x 6" (5 1/2" x 5 1/2" actual) deck posts that I'm using for railing. Note that these a...
        by|Jul 4, 2019
        3 Answers
        Answer This Question

        A:  If you are angle drilling these screws I would drill the holes to counter sink them. I used these screws to hold corbels on my front porch. They worked perfect. I only used one on each side of the corbel. I counter sunk them so I did not see the screw. Because of the length I would go deeper into the wood so you would not tear out the post. Hope this helps.

        by|Nov 25, 2022
        1 found this answer helpful

        A:  If you use 8 inch screws these would work.

        by|Sep 1, 2020
          1 found this answer helpful

          A:  Thats what i did...works great with no wobble.

          by|Oct 3, 2019
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          Q:Is the screw ok for pressure treated 4X 4's?
          by|Jul 14, 2015
          5 Answers
          Answer This Question

          A:  Absolutely.

          by|Feb 5, 2019

            A:  Yes, I use it in pressure treated lumber all the time.

            by|May 5, 2023

            A:  Yes,and you do not need to pre-drill

            by|May 5, 2023

              A:  They would work great. I used them to put landscape timbers together. My landscape timbers were 3" thick and the 4x4's are 3 1/2" thick, but the screws would still go 2 1/2" into the wood you are attaching them to.

              by|Sep 1, 2020
                2 found this answer helpful

                A:  Yes. These are technically deck screws. It will however go all the way through the 4x4 with 2.5 inches sticking out the other side. Make sure you do the math and find your ideal length and this fastener will work beautifully.

                by|Sep 1, 2020
                  4 found this answer helpful
                  Showing 1-4 of 4
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                  Customer Reviews

                  4.6 out of 5
                  (185)
                  • 4.6
                    out of 185 reviews
                  • 80% recommend this product
                  Filter by:
                  Showing 1-10 of 185 reviews
                  do not buy this product
                  there are so many screws got grind off. you cannot take them off or finish.
                  by
                  Response from FastenMaster teamNov 22, 2022
                  Hi John,
                  Thank you for your review. I'm sorry to hear that our 6" HeadLOK did not meet your expectations or perform as you expected. Please give Fasten Master a call @ 800-518-3569. We would like to understand the issue that you experienced and hopefully you can give us a second chance. Thank you. fastenmaster
                    1 found this review helpful
                    Better to buy in volume than a 12 pk. Make sure you have a bit when you buy them. Bit is unique. ...
                    Better to buy in volume than a 12 pk. Make sure you have a bit when you buy them. Bit is unique. Great product
                    by
                    • Verified Purchase
                    • Recommended
                    Excellent product. Zero issues with the included drive bit, no issues with finish chipping. I use...
                    Excellent product. Zero issues with the included drive bit, no issues with finish chipping. I used 75+ to build a generator platform at camp. Professional installed appearance & heavy duty with no pre drilling in treated 4x4's needed.
                    by
                    • Verified Purchase
                    • Recommended
                    Great screw but the threads need to be longer like the legerlok. And I was disappointed that the ...
                    Great screw but the threads need to be longer like the legerlok. And I was disappointed that the bit doesn't last. For a starbit it should do the whole box?
                    by
                    • Verified Purchase
                    • Recommended
                    3 found this review helpful
                    by
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                        by
                          by
                            I use these in lieu of 1/2" bolts to hold railing posts. Because they are thinner and have a large head, I can place additional Fasteners that make for a much sturdier 'feel', and better appearance. I have gone back several years later to inspect the performance and have not seen the loosening that inevitably happens with standard bolting. I use these for various structural connections that require high strength withdrawal resistance - just use plenty since they are only equivalent to a 3/8" Lag. I'm anxious for them to come out with a heavier duty HeadLOK!
                            by
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                                Showing 1-10 of 185 reviews

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