The bolt heads are countersunk and designed for optimum load-bearing capacity

7 x 3 Simpson Trim-Head Wood Decking Screws - Square Drive 316 SS - 5 lbs Pack (490)

9/16-18 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

this 6¾ wood screw touts a self-drilling tip

2" USS Flat Washer HDG

0.225 x 11 Strong-Drive® SDCP TIMBER-CP Screw Yellow Zinc Coating (T40 6-Lobe) - Box (50) 1 1/2-6 Socket Set Screws Cup Point Alloy The bolt heads are countersunk0. 225 x 11 Box (50) The Strong Drive SDCP Timber CP screw is a structural fastener available in a variety of lengths and is designed for cross laminated timber construction, mass timber construction and general interior applications. These partially threaded, 0. 315 in. and 0. 390 in. diameter structural fasteners are designed to pull structural members together with superb holding power. The large flat head with underhead nibs provides for clean