Metallics JPMP78 6-32 x 1/4 in. Pan Head Phillips Machine Screws - Steel Zinc - Each

6-32 is the standard thread for electrical device and cover plate mounting, and the Metallics JPMP78 is a 6-32 pan head Phillips machine screw in a 1/4 inch length, made for the electrical, plumbing, heating and air conditioning trades. At 1/4 inch it is a short screw, so it suits mounting into tapped box ears or straps where you only need a couple of threads of engagement. If you are setting a device forward in a deep plaster ring, you will need a longer 6-32 screw instead.

The JPMP78 is zinc plated carbon steel, which is a mild corrosion coating meant for dry indoor use. In wet, coastal, or washdown areas the plating will eventually rust through. For those conditions specify a stainless 6-32 pan head Phillips screw instead.

No. The JPMP78 is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your federal, transit, or publicly funded project carries a domestic sourcing clause, this fastener will not satisfy it.

A #2 Phillips. The recess diameter is 0.159 inch with a gaging depth of 0.055 to 0.080 inch, so a #2 bit seats properly without camming out. A #1 will spin in the recess and a #3 will not seat.

The pan head measures 0.256 to 0.270 inch across and stands 0.087 to 0.097 inch above the surface. That matters if the screw sits under a plate, a cover, or a sliding part, since a pan head is not flush like a flat head. Head geometry follows ASME B18.6.3-2010.

Minimum tensile strength is 60,000 psi, with a hardness of Rockwell B70 to B100, from AISI 1006 to 1022 carbon steel. That is a known, published figure. Stainless machine screws have no single performance standard, so their tensile values are approximations only, which is why spec work that needs a stated strength number usually lands on plated carbon steel.

A machine screw like the 6-32 JPMP78 has a uniform straight thread and needs a mating tapped hole or a nut. It will not cut its own threads. Use it where the hole is already tapped, as on electrical boxes, straps, and equipment chassis. If you are driving into untapped sheet metal, you want a self tapping or sheet metal screw instead.

They ship in a jar, with a minimum order of 100 pieces. The jar weighs 0.23 lbs. It is a bulk count for an MRO shelf or a service van, not a retail blister card.