Web18 Apr 2016 · Per the 2015 National Design Specification for Wood Construction (NDS 2015), section 12.1.4.6, the minimum length of lag screw penetration Pmin not including the length of the tapered tip, E, of the lag screw into the main member of single shear connections and the side members of double shear connections shall be 4D where D = the … WebTCB building services ltd. I’m assuming you mean noggings. If you’re fixing through the original joists into the end gain of the new timber, I would suggest 100x5.0 or maybe 100x6.00. If you’re screwing through the new timber at an angle into existing joists you would probably be able to use 75x5.00 providing you didn’t start too far back.
ICC-ES Evaluation Report ESR-1976 - Buildex
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Sheet Metal Screw Sizes Chart - Yard and Garden Guru
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