Metallics JDS164V 6 x 1-1/4 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - Steel Zinc - Each

Yes. The JDS164V has an indented hex head measuring 0.244 to 0.25 in. across the flats, so a standard 1/4 in. magnetic nut setter drives it. Width across corners is 0.272 in., and head height runs 0.08 to 0.093 in. The head is also slotted (slot width 0.039 to 0.048 in., depth 0.033 to 0.046 in.), so a flat blade works when you cannot get a driver square to the work.

The JDS164V is a Type A tapping screw with a gimlet (sharp) point, so it forms its own thread in sheet metal, and in thin gauge material it will start without a pilot. Type A is a coarse thread, 18 threads per inch here, intended for thin sheet, not for heavy plate or structural steel. In thicker stock, drill to the recommended hole size for the gauge rather than forcing the point.

These are carbon steel with a zinc finish, built from AISI 1016 to 1024 steel. Zinc plating handles indoor electrical work, panel and enclosure assembly, and dry interior framing fine. For wet exterior, coastal, or chemically aggressive settings, zinc plated carbon steel will eventually corrode, so a stainless fastener is the better call there.

The JDS164V ships as a 500 count jar, and 500 CT is the order minimum, so it is sold by the full jar rather than loose by the piece. Filled jar weight is 2.55 lbs. Other sizes and quantities in the same screw are available by request.

Torsional strength is 24 lb-in minimum and the screw is heat treated to Rockwell C28-38, which is the normal case hardness range for a tapping screw. That is enough to tap its own thread in sheet metal, but 24 lb-in is not much margin under an impact driver at full speed. Drive it with a clutched screwgun or dial the impact back, especially on the last turn once the head seats.

The JDS164V is flagged compliant for both ARRA and Buy American, which is what a government, school, or healthcare procurement file usually needs on a fastener line item. Country of origin is listed as multiple, so if your contract requires a single named origin on the submittal, specify it when you order.

Head and body dimensions follow ASME B18.6.3-2010 and the thread follows ASME B18.6.4, the tapping screw thread standard. Steel is AISI 1016 to 1024. One caveat worth knowing if you order the family: dimensions for the #9 diameter are independent of ASME B18.6.4.

Yes, the head carries a washer section with an outside diameter of 0.302 to 0.328 in. and a thickness of 0.015 to 0.025 in. That spreads the clamp load wider than the 0.25 in. hex itself, which helps when you are pulling down a bracket, strap, or thin cover and do not want the head pulling through.