Comparison : Item # SDCF8X120, 0.315" x 4-3/4" (4-1/4" Thread Length) Simpson Strong-Tie SDCF Flat Head Timber Screw (Black E-coat®), T40 6-Lobe Drive, SawTooth® Point, 250/pk
Item # SDCF8X120-R50, 0.315" x 4-3/4" (4-1/4" Thread Length) Simpson Strong-Tie SDCF Flat Head Timber Screw (Black E-coat®), T40 6-Lobe Drive, SawTooth® Point, 50/pk
Item # SDCF8X140, 0.315" x 5-1/2" (5-1/8" Thread Length) Simpson Strong-Tie SDCF Flat Head Timber Screw (Black E-coat®), T40 6-Lobe Drive, SawTooth® Point, 250/pk
Item # SDCF8X140-R50, 0.315" x 5-1/2" (5-1/8" Thread Length) Simpson Strong-Tie SDCF Flat Head Timber Screw (Black E-coat®), T40 6-Lobe Drive, SawTooth® Point, 50/pk
Item # SDCF8X160-R50, 0.315" x 6-1/4" (5-7/8" Thread Length) Simpson Strong-Tie SDCF Flat Head Timber Screw (Black E-coat®), T40 6-Lobe Drive, SawTooth® Point, 50/pk