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Slip-on Locknuts 3/8-16 St-zn (Bag 5)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Bag
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Nuts
Metallics SLN38 – Frequently Asked Questions
1) What thread size do the Metallics SLN38 slip-on locknuts take?
The SLN38 is threaded 3/8-16, so it matches standard 3/8 inch UNC all-thread rod and 3/8-16 bolts commonly used for hanging electrical supports. If your rod is 1/4-20 or 1/2-13, this is the wrong size nut.
2) What is a slip-on locknut used for instead of a standard hex nut?
A slip-on locknut like the SLN38 pushes onto 3/8-16 threaded rod without spinning it down from the end, then locks in place under load. That saves time when you are hanging strut, conduit supports or fixtures mid-run, where a hex nut would have to be threaded the whole length of the rod. For final adjustable leveling, a standard hex nut and washer is still the better choice.
3) Will the Metallics SLN38 work on 3/8 inch threaded rod already installed in a ceiling?
That is exactly the case it is built for. Because it slips onto the thread rather than being wound up from the rod end, the SLN38 works on 3/8-16 rod that is already hung and cut, with no need to remove the rod or back off existing hardware.
4) Are the SLN38 locknuts zinc plated for damp indoor use?
Yes, the SLN38 is steel with a zinc finish, which handles general indoor and dry commercial work. Zinc plating is not a substitute for stainless or hot-dip galvanized hardware in wet, exterior or corrosive areas, so pick a different material for those locations.
5) How many locknuts come in a Metallics SLN38 pack?
The SLN38 ships as a bag of 5 locknuts. If you are rodding out a full ceiling run, count your hanger points and order multiple bags, since each bag covers five 3/8-16 connections.
How fast can I get the Metallics SLN38 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 SLN38 come with a warranty?
Absolutely. The Metallics SLN38 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 SLN38?
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 SLN38 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.