Metallics JMPMP46SS M4 x 6mm Pan Head Phillips Machine Screws - 18-8 Stainless - Each

It's metric. The JMPMP46SS is an M4 diameter screw, 6mm long, with a 0.7 thread pitch, which is the standard coarse pitch for M4. It will not thread into an inch-size tapped hole such as 8-32 or 6-32, so if you're working on equipment with imperial threads this is the wrong screw.

The JMPMP46SS is made from 18-8 stainless steel, which is the austenitic grade normally used for corrosion resistance in wet and outdoor locations. It is a good choice for damp enclosures, exterior boxes and washdown areas. For heavy chloride exposure such as coastal or pool chemical environments, 316 stainless is the usual step up.

The JMPMP46SS ships in a jar of 100 with a 100-count order minimum, so a single order gets you the full jar rather than a loose screw. Packed weight is 0.35 lbs.

Yes, the head is built to ISO 1580, the standard for slotted/cross-recessed pan head screws. That matters if you're matching a screw already in a device: an ISO 1580 pan head has a defined head diameter and height for a given thread size, so a replacement will sit the same way in a countersink-free clearance hole as the original.

The JMPMP46SS is flagged compliant for both Buy American and ARRA. Country of origin is listed as multiple, so if your submittal package needs a specific origin documented for a given lot, that is worth confirming with the paperwork that ships with the jar.

At 6mm, the JMPMP46SS is a short screw: usable thread is roughly the full 6mm under the pan head, so it suits thin sheet metal, device plates and tapped bosses where only a few threads of engagement are available. If you are stacking a gasket or a bracket more than a couple of millimeters thick, step up to a longer M4; other lengths in the MPMP series are available by request.

Phillips. At M4 these take a #2 Phillips bit in most cases; a #1 can be used on tighter recesses but will cam out sooner under torque. There is no slotted option on this screw.