Simpson THGQH4-SDS6 Truss Girder Hanger W/SDS Screws - Gray Painted, Made to Order Non-ReturnableThe Simpson THGQ truss girder hangers are a lower cost alternative to bolted hangers, the THGQ and THGQH hangers for multi ply girder trusses use Simpson Strong Tie Strong Drive SDS Heavy Duty Connector screws to provide high load capacities and easier installation compared to bolts. The Strong Drive SDS Heavy Duty Connector screws help transfer the load between the plies of the supporting girder when they penetrate all plies. THGQ and THGQH models