Metallics TRM100M 1/4-20 x 3/4...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.40
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Metallics TRM100M 1/4-20 x 3/4 in. Round Head Tri-Drive Machine Screws - Steel Zinc - Each

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Model: TRM100M

In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.40
$0.40
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1/4-20 x 3/4 in. Round Head Tri-Drive Machine Screws - Steel Zinc - 1000qty

  • Features

    • Round head with slotted, Phillips and square Drive
    • Made in the USA
    • Steel Zinc Material
    • 1/4-20 Diameter, 3/4" Length

Manufacturer Resources

Product Specs

Minimum Purchase:
1000 units
Division:
Electrical H1
Fastener Head Type:
Round
Product Group:
Fasteners
Sub Division:
Electrical-E H2
Department:
Electrical
Product Subgroup:
Screws
Product Material:
Steel Zinc

Metallics TRM100M – Frequently Asked Questions

1) What driver do I need for Metallics TRM100M tri-drive machine screws?
The TRM100M round head screw takes a slotted, Phillips, or square (Robertson) driver. The head is cut for all three, so whatever bit is already in your pouch will turn it. That is the point of a tri-drive head on electrical work, where you are often one-handed in a panel or ceiling box.
2) Will a 1/4-20 x 3/4 in. machine screw thread into a standard electrical box or strut nut?
Yes. The TRM100M is a 1/4-20 machine thread, 3/4 inch long, which is the common thread used for strut channel nuts, box mounting lugs, and ground lugs tapped 1/4-20. Machine threads need a mating tapped hole or nut, so you will need a 1/4-20 nut or tapped part; it will not cut its own thread in sheet metal.
3) Is a zinc plated steel screw okay for an outdoor or damp location?
Zinc plated steel is the material on the TRM100M, which is suited to dry interior work, panels, boxes, and covered runs. For wet, coastal, or corrosive locations, step up to a stainless fastener instead; zinc plating is a sacrificial coating and will eventually rust through in sustained moisture.
4) Round head vs. pan head machine screw - which should I use on a cover plate?
The TRM100M has a round head, which sits proud of the surface with a domed crown and a flat bearing face. It works where you want a finished look and some bearing area against a plate or strap, and it will not sit flush. If the application calls for a countersunk hole or a flush surface, you need a flat head screw, not this one.
5) Are Metallics TRM100M screws made in the USA?
Yes, the TRM100M 1/4-20 x 3/4 in. tri-drive machine screw is made in the USA. That matters on public and institutional jobs carrying domestic sourcing requirements, where a buy-American clause can disqualify an import fastener.
6) What is the exact part number to order these tri-drive screws for a standardized MRO stock list?
Order Metallics part number TRM100M. One number covers the 1/4-20 x 3/4 inch round head tri-drive screw in zinc plated steel, which makes it easy to put on a shop or facility stock list and reorder against.
How fast can I get the Metallics TRM100M 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 TRM100M come with a warranty?
Absolutely. The Metallics TRM100M 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 TRM100M?
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 TRM100M 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.
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