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Structural and General Fastening <br />StrongoDrive° <br />SDWS TIMBER Screw (Exterior Grade) (cont.) <br />Min. spacing for loading <br />Min. end distance (2) <br />parallel to grain 4Q <br />Min.spacingforloadin <br />�5 <br />perpendicular to grain <br />Min. edge <br />distance Q1 <br />Load Parallel to <br />O <br />� <br />Load <br />Perpendicular <br />Min. <br />stagger 72) <br />I <br />Min. <br />fo Grain <br />stagger (D <br />for loading <br />Direction of Grain <br />Min. spacing <br />parallel to grain <br />or <br />Minspacing for Ioadin� <br />3 <br />perpendicular to gram <br />SDWS Timber <br />Screw Spacing Requirements <br />Cn\A/C TimhPr qt .rP.\A/ Snacina Reauirements <br />Condition <br />Edge Distance <br />Direction of Load to Grain <br />Perpendicular <br />1 <br />1@ <br />Minimum Distance or Spacing <br />1'/s <br />Parallel <br />1Q <br />17/,a <br />End Distance <br />Perpendicular <br />(Z <br />6 <br />Parallel <br />(Z <br />6 <br />Spacing Between Fasteners in a Row <br />Perpendicular <br />G <br />4 <br />Parallel <br />® <br />8 <br />Spacing Between Rows of Fasteners <br />Perpendicular <br />0 <br />4 <br />parallel <br />4 <br />Spacing Between Staggered Rows <br />Perpendicular or Parallel <br />07 <br />5/8 <br />1. For axial loading only, use the following minimum dimensions: ena alstance = w4 , euye ul-al <br />parallel to grain = 21/4", spacing perpendicular to grain = 11/e". <br />SDWS Timber Screw — Reference Allowable Withdrawal Loads — <br />Douglas Fir —Larch, Southern Pine, Spruce -Pine -Fir and Hem -Fir Lumber <br />ClTJJ�A ANA <br />�lann ing Agency <br />I <br />_I <br />;Dpproved <br />FOR PERMIT ISSUANCE <br />Master ID: <br />Date: <br />Reference Allowable <br />Max. Reference <br />Allowable <br />Thread <br />WithLoads, W (lb./in.) <br />Withdrawal Loads, Wmax (lb.) <br />Model <br />No. <br />Length <br />(in.) <br />Length <br />(in.) <br />DFL and SP <br />DFL and SP <br />HF and SPF <br />Main MemberMain <br />MemberMain <br />MemberMain <br />Member <br />SDWS2230ODB <br />SDWS2240ODB <br />SDWS2250ODB <br />SOWS2260ODB <br />i•1 <br />e• <br />SDWS2280ODB <br />©© <br />I <br />•1 <br />1 U I l i l: <br />1. The tabulated reference withdrawal design value, W, Is in pounds per inch of the thread penetration into uie slue yiau <br />of the main member. <br />2. The tabulated reference withdrawal design value, Wmex, is in pounds where the entire thread length must penetrate into <br />the side grain of the main member. <br />3. The tabulated reference withdrawal design values, W and W_ are shown at a Co = 1.6. For end -grain withdrawal, Cag = 0.65. <br />Tabulated values must be multiplied by all applicable adjustment factors from the NDS as referenced in the IBC or IRC. <br />4. Embedded thread length is that portion held In the main member including the screw tip. <br />5. Values are based on the lesser of withdrawal from the main member or pull -through of a 1 1/2" side member. <br />6. For In-service moisture content greater than 19%, use CM = 0.7, <br />38 <br />