Metallics JFWP22SS 8 x 2 in. Flat Head Phillips Wood Screws - 18-8 Stainless - Each

Yes, these are flat head screws meant to be driven flush or slightly below the surface. Head width runs 0.292 to 0.332 in. and head height is 0.100 in., so a standard #8 countersink cutter will seat it level. In softwood you can often let the flat head pull its own countersink; in hardwood or plywood face layers, pre-countersink to avoid splitting or a raised ring around the head.

18-8 stainless is the usual pick for exterior and damp-location fastening because the corrosion resistance is in the base metal, not a coating, so cut or scratched heads do not start rusting. The JFWP22SS stainless wood screws are supplied without additional finish for that reason. Common uses are electrical, plumbing, heating and air conditioning work where mounting boards, straps and boxes see moisture. Note that 18-8 is not hardened, so do not treat it like a structural or deck ledger screw.

No. These stainless wood screws are not Buy American compliant and are not ARRA compliant; country of origin is listed as multiple. If your project has domestic sourcing requirements written into the contract, you will need a domestically produced fastener instead.

A #2 Phillips bit. The recess is cut to 0.191 to 0.204 in. diameter and 0.113 to 0.136 in. deep, which is standard #2 geometry. Stainless is softer than hardened steel, so a worn or undersized bit will cam out and chew the recess fast. Use a fresh #2 and keep the driver straight and the clutch low.

Pilot it. These are tapered point screws with 15 threads per inch, and stainless shanks will twist off before they force their way through dense material. Softwood can take them with a shank-clearance hole in the top piece; in oak, maple or old growth framing drill a full pilot the depth of the screw. A broken stainless screw in a finished board is a far bigger problem than the extra drilling.

Yes. The JFWP22SS is built to ASME B18.6.1, with thread dimensions to ASME B18.6.1-1997. That is the wood screw standard a submittal or spec sheet will reference, so head, recess and thread dimensions are to published tolerance rather than a house pattern.

They ship in a jar, with a 100 piece minimum per jar. The packed jar weighs 0.84 lbs. Other sizes and quantities in the JFWP series can be had by request, so if you are standardizing a truck stock on #8 stainless flat heads you are not limited to the 2 inch length.