Features and Functions: Contains 675 of 5 most used screws Includes self-tapping screw sizes for pocket-screw joinery All Kreg screws feature a deep No. 2 square drive Includes a durable easy-to-carry case Includes a a needlepoint self-tapping tip Description: Designed For Pocket-Hole Systems, Kreg Pocket-Hole Screws Increase The Strength Of A Pocket-Hole Joint. Cut-Thread Pattern Prevents Splitting. Coarse Thread Is For Any Combination Of Softwoods, Plywood, And Composites, And Fine Is For Hardwoods. Assortment Includes 150 Each Of #6 X 1″ Fine, #7 X 1″ Coarse, #7 X 1-1/4″ Fine, And #8 X 1-1/4″ Coarse. It Also Includes 75 Of The Blue-Kote Weather-Resistant #8 X 2-1/2″ Coarse Screws.