You may also like
Screws 1/4-20 x 3/4 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 RM100-1M – Frequently Asked Questions
1) Will a 1/4-20 machine screw thread into standard electrical box and strut hardware?
Yes. 1/4-20 is the standard machine screw thread for strut nuts, channel nuts, box mounting hardware and most 1/4 inch tapped electrical fittings, so the RM100-1M threads straight into them. Just confirm your grip: at 3/4 inch overall length the screw gives you roughly 3/4 inch of usable thread under the round head, which covers thin bracket plus nut but not thick stacked material.
2) Is the RM100-1M screw OK for outdoor or damp locations?
It's zinc plated steel, which is built for dry indoor and protected use. Zinc plating slows corrosion but it is not a marine or wet-location finish, so for exterior, roof, wash-down or coastal work step up to stainless or hot dip galvanized fasteners instead.
3) Do these machine screws come with nuts?
No. The RM100-1M is screws only, 1000 pieces, no nuts or washers in the box. If you are fastening through sheet metal or strut you need to order matching 1/4-20 hex nuts, channel nuts or washers separately.
4) Is a machine screw the right choice, or should I use a self-tapping screw?
A machine screw like the 1/4-20 x 3/4 RM100-1M is for pre-tapped holes or for use with a nut. It cuts no thread of its own. If you are fastening into plain sheet metal with no tapped hole and no access for a nut on the back, you want a self-drilling or sheet metal screw instead. For enclosure covers, device mounting and strut channel nuts, the machine screw is correct.
5) What driver do I need for Metallics combination head screws?
The combination (CD) head takes either a #2 Phillips or a flat blade, so one screw works whether the crew has a Phillips bit in the impact or a slotted screwdriver on the belt. That's the main reason shops standardize on combo head round head machine screws for panel and fitting work.
6) Is the 1000-piece count a bulk box for MRO stock?
Yes, RM100-1M is sold as a 1000 piece bulk pack of a single size, which is how maintenance shops and electrical contractors stock a common fastener rather than buying small blister packs. One part number covers every 1/4-20 tapped connection on the job.
How fast can I get the Metallics RM100-1M 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 RM100-1M come with a warranty?
Absolutely. The Metallics RM100-1M 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 RM100-1M?
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 RM100-1M 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.