Simpson 18 3/4" Heavy Holdown Quick-Install w/Screws HHDQ14-SDS2.5 Solid Sawn Lumber Connectors Four large hexagon holes are

Four large hexagon holes are intended for GFCMU and concrete applications

It is advisable to provide an adequate means of anchor support during cure time for all overhead applications

diameter machine bolts for installation (sold separately)

keeping all hardware concealed beneath the deck surface for a clean

standoff height above concrete - reducing the potential for decay at post or column ends and meeting requirements for structures exposed to weather

Simpson 18 3/4" Heavy Holdown Quick-Install w/Screws HHDQ14-SDS2.5 Solid Sawn Lumber Connectors Four large hexagon holes areSimpson HHDQ14 SDS2. 5 HHDQ 18 3 4 in. Heavy Holdown with Strong Drive SDS Screws by Simpson Strong Tie is engineered for extra high load applications where reliable, fast installation is critical. This heavy holdown installs directly on the sill plate and is well suited for back to back applications where eccentricity is a concern. Supplied complete with Strong Drive SDS Heavy Duty Connector screws, the HHDQ simplifies the installation process while