Simpson Strong-Tie QuikDrive WSHL134S7 - #7 x 1-3/4" Subfloor Screw 2000ct

Works great with my older porter cable quick drive system.

Good price and delivery. First box delivered had been opened before shipment ... drive bits had been removed and clip count revealed 3 clips short..minor problems, perhaps, but very annoying. Second order was delivered with full count of clips and drive bits included as they were supposed to be

These screw strips do not advance to the proper spot for self drive bit alignment like bigger screws do. Had to put pressure on plastic screw strip to get bit to align and screw in the screw.

Without the bits for the screws it's a bit hard to use them ! There should have been at least two bits in the box lid, but someone ripped open the bag for the bits and took them and then taped the box back together.

Been using these screws for year to screw down sub floors.

Cheaper via Amazon than at the building supply store. Same good quality.