The box dimensions for the 50 count box of SDWC15600-KT are 2.88" wide, 7" long and 2" high. Thank you!
Please contact your local The Home Depot store for pricing information. It would be up to the Designer/Engineer of Record to specify how many screws are needed for the connection based on demand loads, local building codes, etc. Thank you!
These screws are intended for interior dry service conditions as they do not have corrosion resistant finish. They should not be used with preservative treated wood exposed to the elements.