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Manufacturer Resources
Product Specs
- Minimum Purchase:
- 100 units
- Division:
- Electrical H1
- Fastener Head Type:
- Round
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Material:
- Steel Zinc
Metallics JTRM33 – Frequently Asked Questions
1) Will a 10-32 x 1/2 in. tri-drive machine screw work in a standard electrical box or device ring?
Yes. 10-32 is the standard machine screw thread used for grounding screws, device mounting and box hardware in US electrical work, and the Metallics JTRM33 is a 10-32 x 1/2 inch round head machine screw in zinc plated steel. The 1/2 inch length suits mounting devices, covers and ground connections in standard box depths.
2) What driver do I need for a Metallics JTRM33 tri-drive screw?
Three will work. The JTRM33 head is a combination tri-drive, taking a flat slotted tip, a Phillips tip, or a square (Robertson) drive. That means an electrician can drive it with whatever is already in the pouch, and a stripped Phillips recess can usually be backed out with a slotted or square bit instead.
3) Will a round head screw sit flush on a cover plate?
No. The JTRM33 has a round head, which is a domed head that seats on top of the surface rather than pulling down into a countersink. For a flush finish on a faceplate or cover you need a flat head or oval head 10-32 screw. The round head is what you want for grounding lugs, strap mounting and anywhere the head sitting proud is fine.
4) Is the Metallics JTRM33 screw sold individually or in a box?
It ships in a jar of 100 pieces. That is the packaging for this item, which suits keeping a countable refill on the truck or in an MRO stockroom rather than loose bulk.
5) Is a zinc plated steel machine screw okay for outdoor or damp electrical work?
The JTRM33 is zinc plated steel, which is a mild corrosion coating meant for dry interior use. For wet locations, exterior enclosures or coastal jobs, specify a stainless steel 10-32 machine screw instead; zinc plating will eventually rust through in standing moisture.
6) Can I use these machine screws in sheet metal or drywall?
No. A 10-32 machine screw needs a mating tapped hole or a nut; it has a uniform machine thread with no self-tapping point. The JTRM33 is for pre-threaded holes such as device ears, box grounding holes and tapped straps. For sheet metal use a self-drilling or self-tapping screw, and for drywall use a drywall anchor.
7) Is the Metallics JTRM33 machine screw made in the USA?
Yes, these 10-32 tri-drive machine screws are US made, which matters on government, institutional and public works jobs carrying domestic sourcing requirements.
8) What part number do I order for the 10-32 by 1/2 inch Metallics tri-drive screw?
Order Metallics JTRM33. That is the manufacturer part number for the 10-32 x 1/2 inch round head tri-drive machine screw in zinc plated steel.
How fast can I get the Metallics JTRM33 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JTRM33 come with a warranty?
Absolutely. The Metallics JTRM33 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 JTRM33?
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