Screws 1/4-20 x 3/8 RH CD MS St-Zn (1000 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics RM22-1M – Frequently Asked Questions
1) Is the 3/8 inch length long enough for mounting into strut channel spring nuts?
At 3/8 inch under the head, the RM22-1M gives you enough thread for a single sheet-metal or channel-thickness connection with a 1/4-20 spring nut or tapped hole. If you are stacking a bracket plus a plate, or need to pass through thicker material, step up to a longer 1/4-20 screw instead, since a 3/8 inch screw will bottom out before the nut engages fully.
2) Are zinc plated steel screws OK for outdoor or damp electrical work?
Zinc plated steel, which is what the RM22-1M is, is a dry indoor finish. It handles normal interior panel, enclosure, and strut work fine, but in wet locations, exterior runs, or washdown areas the plating will corrode. Specify stainless for those openings.
3) How many screws come in a box of Metallics RM22-1M?
1,000 pieces per box. That is a bulk contractor pack, so it suits an electrical crew standardizing on one 1/4-20 fastener across a job or an MRO crib stocking a single bin rather than someone needing a handful.
4) Is the RM22-1M a machine screw or a self-tapping screw?
It is a machine screw, not self-drilling or self-tapping. The 1/4-20 threads need a mating nut or an already tapped 1/4-20 hole. If you are fastening into bare sheet metal with no nut, you want a self-drilling screw instead.
5) What driver do I need for the Metallics RM22-1M round head screws?
The head is a combination drive, so either a #2 Phillips bit or a flat blade will turn it. Handy on a panel build where the crew is already carrying one or the other.
6) Will the round head sit flush with the surface?
No. A round head screw sits above the surface with a domed profile, so it is not for flush or countersunk applications. If the drawing calls for flush, use a flat head screw in a countersunk hole; the RM22-1M is for through-holes where head height does not matter.
How fast can I get the Metallics RM22-1M 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 RM22-1M come with a warranty?
Absolutely. The Metallics RM22-1M 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 RM22-1M?
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installation tips, and troubleshooting. Contact Us
Why buy the Metallics RM22-1M from ZenSupply?
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and
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