Metallics JFWPB10 6 x 3/4 in. Flat Head Phillips Wood Screws - Brass - Each

A #2 Phillips bit. The JFWPB10 is a Phillips drive screw, and the recess measures 0.161 to 0.174 inch in diameter with a 0.083 to 0.106 inch depth, which is standard #2 territory. Brass is soft, so seat the bit fully and keep the torque low to avoid stripping the recess.

Yes, if the countersink matches the head. The JFWPB10 flat head measures 0.244 to 0.279 inch across and 0.083 inch high, so an 82 degree countersink sized for a #6 flat head takes it flush or slightly below. In softwood you can often drive it flush without a separate countersink, but pre-drill in hardwood since brass shears easily.

The JFWPB10 is built to ASME B18.6.1, with threads to ASME B18.6.1-1997. That is the inch wood screw standard, so head diameter, head height and thread form are to published dimensions rather than a house pattern. One thing to flag for public work: these are not Buy American compliant and not ARRA compliant, and country of origin is listed as multiple.

Brass is non-magnetic and corrosion resistant, which is why these are catalogued for electrical, plumbing, heating and air conditioning work. They are the usual choice for brass or bronze trim, cover plates and fixtures where a steel screw would rust and stain the surrounding finish. The trade-off is strength: brass is softer than steel, so pre-drill and do not drive these with an impact driver.

At 3/4 inch long the JFWPB10 is fully threaded. Metallics threads these at 18 threads per inch and only switches to a 2/3 thread length once the screw reaches 1 inch, so everything shorter than that carries thread the full way to the head. Full thread means it pulls down thin trim or a cover plate tight with the short grip you have in 3/4 inch.

They come in a jar, with a minimum of 100 pieces per jar. If you need a different length, diameter or pack count in the JFWPB brass flat head Phillips line, Metallics offers other sizes and quantities by request.