0.188 x 6 Simpson Strong-Drive® SDWH Timber-Hex Screw 316 Stainless Steel - Pack (10) . Stainless-steel structural fasteners designed for lag-screw replacement. These 0.188" and 0.276" diameter hex-head
fasteners require no pre-drilling, making them easier and faster to install than typical lag screws.
Features:
Type 316 stainless steel for maximum corrosion protection
No pre-drilling necessary in most applications
Load values exceed those of larger diameter lag screws
Driver bit included
Can be used in ledger applications
Unique “box” thread design with raised-ridge technology
significantly reduces driving torque and installation time