Metallics JRM10SLT 6-32 x 5/16 in. Round Head Slotted Machine Screws - Steel Zinc - Each

6-32 is the standard thread used for mounting devices, covers and plates in outlet and switch boxes, and the Metallics JRM10SLT is a 6-32 screw with 32 threads per inch at 5/16 inch length. The short 5/16 length suits shallow tapped holes and bracket work where a longer screw would bottom out or stick through. For device yokes into a box with built in standoffs you usually need a longer 6-32, so check your grip length before ordering this one.

Slotted drive only, with a flat blade slot measuring 0.039 to 0.048 inch wide and 0.051 to 0.068 inch deep. If your crews are running Phillips or combo bits, this one will slow them down, so order a combo or Phillips head 6-32 instead.

The round head measures 0.091 to 0.103 inch in height and 0.24 to 0.26 inch across. That domed profile sits proud of the surface rather than flush, so if you need the head buried in a countersunk hole you want a flat head 6-32, not this round head.

The JRM10SLT ships in a jar with a minimum of 100 count, so this is a bulk pack rather than a loose handful. The packaged jar weighs 0.23 lbs. Metallics notes other sizes and quantities are available by request.

These are AISI 1006 to 1022 carbon steel with a zinc finish. Zinc plating handles dry interior service and incidental moisture, but it is not stainless, so for wet locations, coastal exposure or washdown areas specify a stainless 6-32 machine screw instead.

The JRM10SLT is flagged Buy American compliant and ARRA compliant in Metallics' data, with country of origin China. Institutional and government buyers writing a domestic preference clause should take the origin into account against their own project language.

60,000 psi minimum tensile, with hardness of Rockwell B70 to B100. That is standard low carbon steel machine screw strength, fine for device mounting, panel covers and bracket work, not for structural or high torque joints. Metallics notes that tensile figures for stainless machine screws are approximations only since no single performance standard exists for them.