Metallics JFW89 14 x 2-1/2 in. Flat Head Slotted Wood Screws - Steel Zinc - Each

Yes, as long as the hole is countersunk. The Metallics JFW89 is a flat head screw with a head height of 0.153 in. and a head diameter between 0.452 and 0.507 in., so the countersink has to be cut to roughly half an inch across for the head to sit flush with the surface. Without a countersink the head will stand proud and the trim or hinge leaf will not seat.

It is. The JFW89 is made to ASME B18.6.1, with threads to ASME B18.6.1-1997, which is the standard that fixes head diameter, head height, slot width, and thread form for inch wood screws. Any other #14 x 2-1/2 in. flat head slotted screw built to the same standard drops into the same countersink and pilot hole.

The JFW89 ships in a jar with a minimum order of 100 count, so the smallest purchase is a full 100-piece jar rather than loose pieces. Jar weight is listed at 2.61 lbs.

Plan on it in hardwood. The JFW89 has a tapered point and 10 threads per inch, which is a traditional tapered wood screw shank rather than a self-drilling design, so a pilot hole keeps it from splitting trim, stiles, or the edge of a jamb. In soft pine it will often drive without one.

Zinc plating on steel is a mild corrosion coating, suited to interior framing, trim, strike plates, and hinge work. For exterior exposure, pressure treated lumber, or a wet mechanical room, step up to a stainless or hot dip galvanized screw instead; the plating on the JFW89 will eventually bleed rust in those conditions.

It can be. The JFW89 uses a slotted drive with a slot width of 0.064 to 0.075 in. and a depth of 0.046 to 0.07 in., which means a flat blade bit and controlled torque. Slotted heads cam out under an impact driver, so for high volume driving a Phillips or square drive wood screw is the better call. Where slotted is specified for appearance, such as restoration or period hardware, this is the right head.

The JFW89 carries both ARRA and Buy American compliance flags in its product record, with country of origin listed as China. For federally funded projects, verify which clause your contract invokes, since compliance treatment differs between Buy American Act and Build America Buy America provisions.

Threading on the JFW89 runs about two thirds of the length, leaving a smooth shank under the head. That unthreaded portion is what lets the screw pull two pieces of wood tight together, since the threads bite only the bottom member. If you need full thread engagement in a single thin piece, a shorter screw is the better choice.