Simpson 0.220 x 4" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk accurate longitudinal movement and a

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

Applications in wind- or seismic-loading environments

2-Cutter Head - Designed to improve durability and drilling speed throughout the bit's service life

the blade rides on two load bearings mounted on a pivot shaft with side bearings and carbide pads assisting in distributing the load equally for stable

Simpson 0.220 x 4" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk accurate longitudinal movement and aModel 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