Timber Hex ScrewsQuote NowApplicationStructural wood-to-wood, engineered wood, including ledgers and pile connections MaterialsStainless Steel / Carbon Steel Specification Head Diameter (in) Head Drive Type Nominal Length (in) Thread Length (in) Shank Diameter² (in) Thread Diameter Minor/Major (in) Specified Minimum Cor Hardness (HV 0.3) Nominal Bending Yield, (psi) Allowable Fastener Strength (lbf) Tensile/Shear³ 0.487 Hex 5/16 4 2 0.189 0.171/0.258 300 177,700 725 6 2 0.189 0.171/0.258 300 177,700 725 0.570 Hex 5/16 4 2 0.224 0.211/0.297 355 172,600 1240 5 3 0.224 0.211/0.297 355 172,600 1240 6 3 0.224 0.211/0.297 355 172,600 1240
