Metallics JFW131 8 x 3/4 in. Flat Head Slotted Wood Screws - Steel Zinc - Each

Yes, that is what the flat head is for. The head measures 0.292 to 0.332 inch across with a head height of 0.100 inch, so in a standard countersink for a #8 flat head it seats flush with the surface. The point is tapered, so it starts in wood without a pilot hole in softer material.

These are steel with a zinc finish, which is a dry-location, interior-grade coating. Fine for wood trim, device mounting, boxes on studs, and general interior carpentry. For sustained exterior exposure or treated lumber, use a stainless or hot-dip galvanized screw instead, since plain zinc plating will corrode.

Yes. Both the dimensional and thread specs are built to ASME B18.6.1, with the thread standard called out as ASME B18.6.1-1997. Thread count is 15 per inch. That matters on government and Buy American jobs where the submittal has to name a dimensional standard rather than just a size.

Metallics lists the JFW131 as both ARRA compliant and Buy American compliant. Country of origin is China. Procurement officers should read those together, because the compliance flag and the origin are both part of the record you will be asked to document.

The drive is a slot, 0.045 to 0.054 inch wide and 0.029 to 0.045 inch deep. A slot that shallow and narrow cams a bit out easily under power, so hand driving or a slow, well-seated slotted bit is the practical route. If you want a screw you can run fast with an impact driver, choose a Phillips or square drive wood screw instead.

On a 3/4 inch screw the thread runs essentially the full length. Metallics notes that screws too short to carry the minimum thread length have threads extending as close to the underside of the head as practicable; the 2/3-length thread rule only kicks in at 1 inch and longer. So you get full-length bite in a 3/4 inch screw, which is what you want when you are only picking up thin stock or a strap into a stud.

Yes. The JFW series covers other diameters, lengths, and quantities beyond the #8 x 3/4 inch, 100-count jar, available by request. If you are standardizing a maintenance stock across several sizes, ask for the sizes you need in the series rather than mixing brands.

A jar of 100 runs 0.4 lbs, with the container measuring 3 in by 3 in by 2.15 in. Useful if you are building out a van stock kit or a shelf plan and need to budget space and weight across several sizes.