Simpson 0.220 x 4" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk Applications in wind- or seismic-loading

Applications in wind- or seismic-loading environments

accurate longitudinal movement and a wide threading range without constant gear changes

Is this hoist safe to use if the power suddenly fails during a lift

88 is designed to support standard 90 deg

Model Number (MPN): THDB62800WH

Simpson 0.220 x 4" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk Applications in wind- or seismic-loadingModel No. SDWS22400DBB Coating Material. Double Barrier Coating Length. 4 Head Diameter (in.) 0. 76 Shank Diameter (in.) 0. 22 Drive Type. T40 6 Lobe Head Type. Washer Head Thread Type. 2 3 8 Point Type. SawTooth Point Color. Black The Strong Drive SDWS Timber screw is designed to provide an easy to install, high strength alternative to through bolting and traditional lag screws. This screw is ideal for the contractor and do it yourselfer alike. It is