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Questions and Answers for FastenMaster ThruLok 1/4 in. 6-1/4 in. External Hex Drive, Hex Head Wood Screw Bolt Fastening System (6-Pack)

Internet #202618093

Model #FMTHR614-6

Store SKU #341684

ThruLok 1/4 in. 6-1/4 in. External Hex Drive, Hex Head Wood Screw Bolt Fastening System (6-Pack)
(5)Questions & Answers (5)
  • Replaces 1/2" Carriage or Thru bolts
  • Ideal for post connections on a deck
  • No need for pre-drilling or wrenching
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Questions & Answers

5Questions
caret
Q:which Thrulok product is recommended for deck beams, fastening a 2x to 6x?
by|Aug 19, 2020
0 Answer
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caret
Q:How do I size for my project? Double box beam, through post, then through 2x. I'll be drilling through double 2x (3"), then through a 4x (3.5") post, then through another 2x (1.5") for a total of 8" - are the 8" EXACTLY 8", or do I need to change my project design? By the looks of these bolts, they only thread at the end.
by|Mar 27, 2020
0 Answer
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caret
Q:What is "thought-bolted"? Sounds like science fiction.
by|Sep 9, 2019
0 Answer
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caret
Q:What is the shear strength of these?
by|Apr 9, 2019
0 Answer
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caret
Q:Can the 7" be used to fasten two 2x's and a 4x?
by|Jul 26, 2017
2 Answers
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A:  I put an 1 1/2" x 7" notch in a 4x4 and attached it to a double 2x8. I boxed in the 4x4 with 2x8 blocking. The result was 6 1/2" of material to bolt thru. I used three ThruLok fasteners in a skewed triangle pattern. It was quicker and stronger than two 1/2" bolts.

by|May 5, 2023

    A:  No. From the Fasten Master website; the capacity of the 7" ThruLok is 5 1/4" to 6". Your two 2X are 3" and your 4X is 3 1/2" so you're a half inch over manufacturer rated capacity. The 8" ThruLok is rated 6 1/4" to 7" and the 9 1/2" is rated 7 3/4" to 8 1/2". Go with the 8" version especially if you're meeting code. As long as I'm quoting ThruLok the 6 1/4" capacity is from 4 1/2" to 5 1/4" .

    by|May 5, 2023

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      Screw Length

      6-1/4 in

      2-3/4 in

      8 in

      3-1/8 in

      Size

      1/4 in

      #9

      #12

      #9

      Drive Style

      Hex

      Torx

      Torx

      Torx

      Head Style

      Hex Head

      Bugle Head

      Bugle Head

      Bugle Head

      Thread Style

      Coarse Thread

      W-Cut Thread

      W-Cut Thread

      W-Cut Thread