#14 x 4 inch Heavy Duty Black Timber/Log/Landscaping Wood Screws - Exterior Coated Heavy Duty Screws (250 Count Pkg -Heavy Duty

4 Heavy Duty Black Log Timber Screws These screws are a far superior alternative to spikes for greater holding power. The black log screw coating passed the 1000 hour salt spray tests without coating failure. These screws are manufactured from high quality heat treated steel and are ACQ treated lumber compatible. Shaft diameter measures 33/128ths of an inch, approximately 1/4, with a 1/2 washer head and with a 5/16 hex head The deep, wide, sharp threads provide maximum holding power require less torque to drive the screw Our Black Log Timber/Landscaping Screws Have Drag Reducing Knurled Shoulders for Easy Installation Heavy duty black log timber screws are most often used for landscaping timbers, log construction, log homes and fencingThese Heavy Duty Black Log Timber Screws come in a 250 count package.Screw Engineering Specs:Average screw shear strength is 3540 lbs Average screw shear strength ---- 3540 lbs Average Pull-Out Strength --------- 1120 lbs (Screw Pull-Out is Calculated with a 6 Length Black Log Timber Screw in the wood species: Yellow Pine Wood)