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HeadLok 4-1/2 in. Heavy Duty Flathead Fastener (50-Box)

$4250
/box
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  • ACQ approved and code-compliant design
  • Included spider drive
  • Self-tapping design eliminates the need for drilling
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Price:
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Product Overview

Save time, money and labor costs. HeadLok eliminates the need to predrill and hand-ratchet in 3/8 in. galvanized lag screws in wood-to-wood projects. HeadLoks aggressive threading and sharp gimlet point allows it to zip right into wood or OSB without pre-drilling. Plus, the wafer head eliminates the need for washers and offers increased pull through strength. Perfect for deck framing, stair stringers, fencing, cabinets, and more. Sizes are perfect for virtually any dimensional wood-to-wood project.
  • Nationally code compliant; stronger design shear values than 3/8 in. lag screws
  • No pre-drilling; zip right in
  • Patented spider drive virtually eliminates cam-out
  • Guaranteed corrosion resistance for the life of the project; ACQ approved
  • Free spider drive bit in every package

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Questions & Answers

Typical questions asked about products:

  • Is the product durable?
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Customer Reviews

  • 4.7
    out of 184 reviews
  • 93%recommend this product
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Showing 1-10 of 184 reviews
The Picture Says it All
Purchased a pack of 50 of these since these were in stock at the location closest to me... The first one started to strip but made it all the way into the wood, the second one went in okay, the third again stripped without quite getting all the way in, and then the image is of the 4th one, which stripped so badly only half way in I had to back it out with vise grip. Returned and purchased GRK instead at a location an hour further away, haven't had a single failure on the GRKs.
by
Response from FastenMaster teamAug 23, 2022
Hi Mark,
Thank you for your review. I'm sorry that our HeadLOK screws did not performed as intended. This is very uncharacteristic of this fastener. Can you please answer some questions or call us so we can understand why this this happened? What type of drill (brand, voltage) did you use? What type of lumber are you driving the screws into? did you use the bit included in the box and did the fit feel loose or did it feel like it didn't fit. We can be reached at 800-518-3569 or techsupport@fastenmaster.com. Thank you. fastenmaster
    good quality but why this bit?
    is good quality I can refuse that but if you loose the bit there's no way to use unless you buy another box believe me I had this problem now I have almost all the box without use the regular bits box doesn't work with these screws.
    by
    Response from FastenMaster teamNov 22, 2021
    Thank you for your review. The spider drive bits can be purchased separately and they are available at your local Home Depot. They are located with the rest of the Fasten Master products. Please feel free to contact Fasten Master at 800-518-3569 or techsupport@fastenmaster.com fastenmaster
      Used these to tie some corbel/gussets to the post and beam of a pavillion I built. They say these...
      Used these to tie some corbel/gussets to the post and beam of a pavillion I built. They say these replace lag bolts and I believe it. The button heads look great and the key pattern ensures that they will not strip. They went in butter smooth!
      by
      • Verified Purchase
      • Recommended
      The driver bit was missing from the box. I used them to attach 4x4 PT legs to a 4’x2’ table top f...
      The driver bit was missing from the box. I used them to attach 4x4 PT legs to a 4’x2’ table top for planting
      by
      • Verified Purchase
      • Recommended
      Rating provided by a verified purchaser...
      Rating provided by a verified purchaser
      by
      • Verified Purchase
      Rating provided by a verified purchaser...
      Rating provided by a verified purchaser
      by
      • Verified Purchase
      The fasteners worked great and the bit supplied with the...
      The fasteners worked great and the bit supplied with the fasteners worked great. I wanted to buy an extra bit but the size of the bit wasn’t printed on the outside of the box. I felt they were significantly overpriced.
      by
      • Verified Purchase
      by
      • Verified Purchase
      Rating provided by a verified purchaser...
      Rating provided by a verified purchaser
      by
      Response from FastenMaster teamJul 11, 2022
      Hi, Thank you for your review. I'm sorry to see that you are not satisfied with the 4-1/2" HeadLOK screws, but you do not state why. Please contact Fasten Master @ 800-518-3569 or techsupport@fastenmaster.com and let us know what we could have done or what you did not like about the fastener. Thank you fastenmaster
      • Verified Purchase
      easy to use with drill bit included. extra strength also...
      easy to use with drill bit included. extra strength also
      by
      • Verified Purchase
      Showing 1-10 of 184 reviews