Metallics JFWPB61 4 x 3/4 in. Flat Head Phillips Wood Screws - Brass - Each

Yes, if the countersink is cut for a standard 82 degree flat head. The JFWPB61 head measures 0.195 to 0.225 inch across and 0.067 inch high, and it is dimensioned to ASME B18.6.1, so a standard #4 countersink bit drops it flush with the surface. In softwood the head will pull itself flush without a countersink; in hardwood, countersink it or the brass head will snap off.

No. The JFWPB61 brass wood screw is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a job with a domestic-source clause you will need a fastener certified to it.

They ship 100 to a jar, and the jar is the order minimum, so 100 pieces is the smallest quantity. Metallics notes other sizes and quantities in the JFWPB series are available by request.

All of it, effectively. Metallics specifies full thread up to 1 inch of length and two-thirds thread above that, so at 3/4 inch the JFWPB61 is threaded the full way to the head. Thread pitch is 22 threads per inch to ASME B18.6.1-1997. Full thread means it pulls two thin pieces together only if the top piece is drilled as a clearance hole, otherwise the threads bite the top board and hold the joint open.

For the light work these are made for, yes. Metallics lists this screw for the electrical, plumbing, heating and air conditioning trades, which is clamp blocks, cover plates, trim, and small device mounting into wood. Brass will not rust or stain and it stays non-magnetic, but it is far softer than steel. Pilot drill hardwood and drive by hand or on a low clutch setting, because a #4 brass shank will twist off before a steel one complains. For structural or high-torque fastening, use a steel screw.

Drill a pilot sized to the screw's root, not its outside diameter, and drill it the full 3/4 inch depth. Because the JFWPB61 is brass and only a #4 shank, the pilot matters more than it would with steel. An undersized hole in oak or maple will shear the head off at the Phillips recess. A clearance hole through the top piece and a pilot in the bottom piece is the right approach for any joint you want pulled tight.

The JFWPB61 is solid brass material rather than a brass-plated steel screw, so the head color stays consistent as it wears and it will not rust-streak the wood like plating that chips. That is why brass flat heads get specified alongside brass hinges, strike plates, and trim. The head is 0.195 to 0.225 inch across, which is the standard #4 flat head footprint.