Metallics JFWP24 8 x 3 in. Flat Head Phillips Wood Screws - Steel Zinc - Each

These are steel with a zinc finish, which is a dry-interior coating. Zinc plating handles indoor humidity but corrodes in sustained wet, exterior exposure, or treated lumber. For outdoor framing, strut mounting on an exterior wall, or anywhere wet, go to a stainless or hot-dip galvanized wood screw instead.

The JFWP24 is a partially threaded wood screw: on lengths over an inch the thread runs roughly two-thirds of the screw, so about 2 inches of thread on this 3 inch screw with a smooth shank under the head. That unthreaded shank is what lets the head clamp the top board down tight against the one below instead of jacking the two apart. Thread count is 15 per inch with a tapered point.

No. The JFWP24 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. On a federally funded project with domestic sourcing requirements you will need a domestically produced wood screw instead.

A #2 Phillips bit. The JFWP24 is a Phillips drive screw with a recess diameter of 0.191 to 0.204 in. and a recess depth of 0.113 to 0.136 in., so a standard #2 tip seats fully without camming out. One bit covers the whole jar.

In hardwood or near an edge, yes. The JFWP24 has a tapered point, not a self-drilling or type-17 auger point, so it relies on a pilot hole to start cleanly and avoid splitting. In soft pine or SPF framing away from edges it will usually drive without one.

They are built to ASME B18.6.1, with the thread specifically to ASME B18.6.1-1997. That is the wood screw dimensional standard, so head diameter, head height, recess geometry and thread form fall within published tolerances rather than being a house size. Useful when a submittal calls out a standard-conforming fastener.

Metallics lists the JFWP series for the electrical, plumbing, heating and air conditioning trades. At 3 inches a #8 reaches through strapping, backer, or drywall into a stud, which is what makes it the go-to for anchoring boxes, panel backboards, strut, hangers, and conduit standoffs to wood framing. Flat head means it can be countersunk flush so a plate or box sits flat against it.

They come in a jar, with a minimum of 100 per jar. The jar weighs 1.34 lbs. If you are buying for a shop or truck stock, that is the unit you buy in rather than a loose count.