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Screws 10-24 x 1/2 PN PH MS St-Zn (5000 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics PMP39-5M – Frequently Asked Questions
1) What size and thread are the Metallics PMP39-5M machine screws?
They are 10-24 x 1/2 inch machine screws, so a #10 diameter with 24 threads per inch and a 1/2 inch length under the head. The 10-24 thread is the standard machine screw thread used in tapped holes in device boxes, panel enclosures and mounting brackets, and it will not thread into sheet metal the way a self-tapping screw does; the hole has to be tapped or carry a 10-24 nut.
2) Will a 10-24 x 1/2 machine screw work for mounting devices and covers in a steel box?
Yes, where the box or bracket already has a tapped 10-24 hole, which is the common thread in steel device boxes, mounting straps and panel enclosures. At 1/2 inch of length there is enough thread for a device yoke or a cover plate but not for stacking thick spacers or multiple brackets; for a deeper stack, step up to a longer 10-24 screw.
3) What head style and driver do the PMP39-5M screws take?
Pan head with a Phillips recess. The pan head gives a low, rounded profile with a flat bearing face, so it seats on top of the material rather than countersinking, and it drives with a standard Phillips bit (a #2 bit suits a #10 screw). If the job calls for a flush finish in a countersunk hole, a flat head screw is the right choice instead.
4) Are these zinc plated steel screws suitable for outdoor or wet locations?
The PMP39-5M is steel with a zinc plating, which is a mild corrosion coating intended for dry indoor use. For exterior, damp or washdown locations, specify stainless steel machine screws in the same 10-24 x 1/2 size rather than zinc plated steel.
5) How many screws come in a box of Metallics PMP39-5M?
5,000 pieces per carton. That is a bulk MRO or panel shop quantity, not a contractor pack, so it suits an electrical shop standardizing on one 10-24 x 1/2 machine screw across device and enclosure mounting rather than a single service call.
6) What is the difference between the PMP39-5M machine screw and a sheet metal or self-drilling screw?
A machine screw like this one has a uniform 10-24 machine thread and a blunt end, so it needs a tapped hole or a nut. Sheet metal and self-drilling screws cut their own thread in untapped steel. If you are fastening into a factory tapped hole in a box, strap or enclosure, the machine screw is correct; if you are fastening through bare sheet steel with no prepared thread, use a self-tapping screw instead.
How fast can I get the Metallics PMP39-5M delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics PMP39-5M come with a warranty?
Absolutely. The Metallics PMP39-5M is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics PMP39-5M?
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