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Screw M5 x 40 FH PH MS St-Zn (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics JMFMP540 – Frequently Asked Questions
1) What size and type of screw is the Metallics JMFMP540?
It's an M5 x 40 mm machine screw with a flat head and a Phillips drive, made of steel with a zinc plating. M5 is the metric thread diameter and 40 mm is the length under the head, so it's a metric fastener, not a #10-24 or other inch thread.
2) How many screws come in a jar of Metallics JMFMP540?
Each jar holds 100 of the M5 x 40 flat head Phillips machine screws. Metallics packages them in a jar rather than a bag or box, which keeps them sorted on a cart or in a van bin.
3) Will an M5 x 40 flat head screw sit flush in a countersunk hole?
Yes, that's what the flat head is for. The JMFMP540's flat head is tapered to seat down into a countersunk or chamfered hole so the top of the head finishes level with the surface. If your plate or enclosure has a straight, un-countersunk hole, a flat head will stand proud and you want a pan or round head instead.
4) Can I use the Metallics JMFMP540 machine screw in a drilled hole in sheet metal without a nut?
No. A machine screw like the M5 x 40 has a straight machine thread, so it needs a tapped hole or a nut to hold. It will not cut its own thread in raw sheet metal. For that you'd use a self-tapping or self-drilling screw instead.
5) Is the Metallics M5 x 40 screw suitable for outdoor or damp locations?
It's steel with a zinc plating, which handles indoor and dry electrical work fine and gives light corrosion resistance. Zinc plated steel is not a marine or sustained wet-location finish, so for exterior, washdown, or coastal work specify stainless instead.
6) What is the Metallics part number for the M5 x 40 flat head Phillips machine screw?
JMFMP540 is the Metallics part number, covering the M5 x 40 flat head Phillips steel zinc machine screw in the 100-piece jar. That's the number to quote when ordering or matching an existing jar on the shelf.
How fast can I get the Metallics JMFMP540 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 JMFMP540 come with a warranty?
Absolutely. The Metallics JMFMP540 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 JMFMP540?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JMFMP540 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.