They feature a red finish for easy identification. The T15 star drive bits are compatible with the low profile cabinet screws #9 trim head screws #6 or #8 R4 screws and #8 vinyl window screws..
The Zip-Tip feature allows for no pre-drilling and 1-step installation. Star Drive Low Profile Washer Head Structural Wood Screw, 100PK. The W-Cut provides low installation torque which allows for fast driving and ease of install. x 3-1/8 in.