Metallics TRM103M 1/4-20 x 1-1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.57
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Metallics TRM103M 1/4-20 x 1-1/2 in. Round Head Tri-Drive Machine Screws - Steel Zinc - Each

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Model: TRM103M

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

$50.57
$0.57
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1/4-20 x 1-1/2 in. Round Head Tri-Drive Machine Screws - Steel Zinc - 1000qty

  • Features

    • Steel Zinc Material
    • Made in the USA
    • 1/4-20 Diameter, 1-1/2" Length
    • Round head with slotted, Phillips and square Drive

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 TRM103M – Frequently Asked Questions

1) What driver do I need for a Metallics TRM103M tri-drive machine screw?
The TRM103M head takes three drivers: a flat blade for the slot, a Phillips bit, or a square (Robertson) bit. That's what tri-drive means here, one recess that accepts all three, so whatever is already on your belt will turn it. For a 1/4-20 screw a #2 or #3 Phillips and a #2 square are the usual fits.
2) Is the Metallics TRM103M a machine screw or a self-tapping screw?
It's a machine screw, 1/4-20 x 1-1/2 inches. The threads are a straight 20-per-inch machine thread, so it needs a tapped hole or a 1/4-20 nut to pull against. It will not cut its own thread in sheet metal or form a thread in wood.
3) Will a 1/4-20 Metallics TRM103M screw thread into a standard electrical box or strut nut?
Yes. 1/4-20 is the common thread used for ground screws, box and enclosure hardware and strut channel nuts, and the TRM103M is a 1/4-20. At 1-1/2 inches of length it gives plenty of reach for stacking a clamp, bracket or cover plate on top. Confirm your tapped part is 1/4-20 and not 10-32, which is the other thread you see in boxes.
4) Are Metallics TRM103M screws okay outdoors or in a damp location?
The TRM103M is zinc plated steel. Zinc plating handles indoor and dry or occasionally damp locations fine, but it is not a stainless screw, so for wet exteriors, coastal air or corrosive environments specify stainless instead.
5) Why pick a round head screw instead of a flat or pan head?
Round head, as the TRM103M is, sits proud on the surface with a domed crown and a flat bearing face, so it clamps a bracket or strap down without needing a countersink in the part. If the drawing calls for the head flush with the surface, you want a flat head in a countersunk hole instead.
6) Do Metallics TRM103M machine screws come with nuts?
No. The TRM103M is the screw only. If the hole isn't already tapped 1/4-20 you need to order 1/4-20 nuts, and any washers or lock washers, separately.
7) Is the Metallics TRM103M made in the USA?
Yes, the TRM103M 1/4-20 x 1-1/2 inch round head tri-drive machine screw is US made, which matters on jobs carrying a domestic sourcing requirement on the fastener line items.
8) How do I order the right length in this Metallics tri-drive machine screw?
The part number carries the size: TRM103M is the 1/4-20 x 1-1/2 inch round head tri-drive in zinc plated steel. Measure the grip you need (material thickness plus a couple of threads past the nut) and order the length to match rather than trimming a longer screw, since cutting damages the thread.
How fast can I get the Metallics TRM103M 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 TRM103M come with a warranty?
Absolutely. The Metallics TRM103M 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 TRM103M?
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 TRM103M from ZenSupply?
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