BIT40T-R1 SDW Driver Bit (1pc pack)

*For further description please see Simpson Strong-Tie Wood Construction Connectors Catalog.

**Click Load Table icon for size & fastening requirements.

The Simpson Strong-Tie® Strong-Drive® SDW wood screw is a 0.22" diameter, high-strength structural wood screw specifically designed for fastening multi-ply wood members, such as joining plated trusses, engineered-lumber products and solid-sawn lumber. The SDW installs easily with no pre-drilling and is available in optimized lengths for fastening 2-, 3- and 4-ply trusses or 1 3/4" engineered lumber, such as structural composite lumber (SCL).

With the SDW screw, multi-ply trusses and beams can be fastened from one side without requiring the lifting and flipping of heavy assemblies. The large, flush head eases the handling of assembled girders and simplifies the installation of finishes or structural connectors. Each SDW head is stamped with the Simpson Strong-Tie “No Equal” sign and the fastener length for easy identification after installation.

Special Features:

Strong-Drive® SDW Structural Wood Screws Provide An Easy-to-Use, Cost-Effective Solution

Low-profile head makes stacking and sliding members easier and allows installation of hardware and finishes to be virtually flush Higher shear values than competitive products enable wider screw spacing, saving time and money Patented 4CUT™ tip has a square core and serrated threads to provide fast starts, reduce installation torque and make driving easier with no pre-drilling Bold thread design firmly cinches plies together for consistent installation Deep, 6-lobe T-40 recess reduces cam-out, making driving easier Under head nibs provide the installer with greater installation control when the head meets the wood surface Optimal screw lengths provide maximum penetration while preventing the tip from protruding out the back of the member Ability to penetrate multi-ply trusses from only one side eliminates the need for truss flipping Available in retail, mini-bulk and bulk quantities to suit user needs Material: Heat-treated carbon steel

Finish: Black E-coat™

WARNING: Industry studies show that hardened fasteners can experience performance problems in wet or corrosive environments. Accordingly, the SDW wood screws should only be used in dry, interior and non-corrosive environments. Installation:

SDW screws install best with a low-speed 1/2" drill and a T-40 6-lobe bit. The matched bit included with the screws is recommended for best results. No pre-drilling is typically required. SDW screws may be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2007 Section 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32" bit). Screw heads that are countersunk flush to the wood surface are acceptable if the screw has not spun out. Individual screw locations may be adjusted up to 3" to avoid conflicts with other hardware or to avoid lumber defects.

Notes To Designer:

Single-fastener shear loads for Tables 1-4, and withdrawal loads in this section, are based on testing per ICC-ES AC233. Allowable withdrawal load for DF/SP/SCL is 200 pounds per inch (lbs./in.) and for SPF/HF withdrawal is 150 lbs/in. Total allowable withdrawal load is based on actual thread penetration into the main member. Allowable loads in tables are shown at the load duration factor of CD = 1.00 and shall be multiplied by all applicable adjustment factors per the NDS. Loads may be increased for load duration per the building code up to a CD of 1.6.

Minimum fastener spacing requirements: 6" end distance, 17/16" edge distance, 5/8" between staggered rows of fasteners, 4" between non-staggered rows of fasteners and 6" between fasteners in a row. Note exceptions in Table 5. Maximum fastener spacing is recommended to not exceed 24" on-center except as approved by a qualified Designer. For structural composite lumber (SCL = LVL, PSL or LSL) loads, assume an equivalent Specific Gravity of 0.50 or higher.

Tabular loads on this web page are based on the capacity of the Simpson Strong-Tie® SDW22 fasteners. The capacity of the multi-ply assembly must be checked by a qualified Designer.