Metallics JDS160V 6 x 3/4 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - Steel Zinc - Each

Yes. The JDS160V has an indented hex head measuring 0.244 to 0.25 in. across the flats, so a standard 1/4 in. magnetic nut setter seats on it. Width across corners is 0.272 in., and head height runs 0.08 to 0.093 in. It is also slotted (0.039 to 0.048 in. slot width, 0.033 to 0.046 in. deep), so a #2 flat blade works where a driver will not reach.

They need a hole. The JDS160V is a Type A tapping screw with a gimlet (sharp) point, which means it taps its own thread in sheet metal, plastic, or soft material but does not drill. Punch or drill a pilot first. If you want a screw that drills and taps in one pass, you need a self-drilling point instead.

They ship 500 to a jar, and 500 count is the order minimum, so that is the smallest quantity available. The jar weighs 1.85 lbs. Other sizes and quantities are available by request.

Yes, the JDS160V is flagged both ARRA compliant and Buy American compliant, which is what a public agency, school district, or federally funded project submittal usually asks for. Country of origin is listed as multiple.

They run 18 threads per inch at a #6 diameter, 3/4 in. long, to ASME B18.6.4 for thread form. The coarse 18 TPI Type A thread is intended for thin gauge sheet metal and soft materials where only one or two threads engage. With 3/4 in. of length, you have room for stacked sheets or a bracket plus panel.

Keep them dry. The JDS160V is AISI 1016-1024 carbon steel with a zinc finish, which handles indoor electrical work (panels, enclosures, strut, device mounting) but is not a stainless or hot-dip coating. For wet, exterior, or corrosive environments, specify a stainless or hot-dip galvanized fastener instead.

The JDS160V is rated to a 24 lb-in minimum torsional strength and heat treated to Rockwell C28-38, which is the case hardness needed to form threads in sheet metal. That 24 lb-in figure is the ceiling for a #6 of this type, so set the clutch low on a cordless driver. A full-power impact driver will twist the head off.

There is a washer-style bearing surface under the indented hex head, 0.302 to 0.328 in. outside diameter and 0.015 to 0.025 in. thick. That gives you more bearing area than a plain hex head, so it spreads load on thin sheet and over slightly oversized holes without a separate washer.

Head and body dimensions follow ASME B18.6.3-2010, with threads to ASME B18.6.4 and steel to AISI 1016-1024. Note that on the JDS series, dimensions for #9 diameter screws fall outside ASME B18.6.4; the #6 size here is covered.