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Slip-on Locknuts 1/2-13 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 SLN12 – Frequently Asked Questions
1) What thread size do Metallics SLN12 slip-on locknuts take?
The SLN12 slip-on locknut is sized for 1/2-13 thread, meaning 1/2 inch diameter at 13 threads per inch. That is the standard UNC coarse thread for 1/2 inch rod and bolts, so it slips onto 1/2 inch all-thread hanger rod used for conduit, strut, and fixture supports.
2) What is the point of a slip-on locknut versus a standard hex nut on threaded rod?
A slip-on nut pushes straight up the rod without spinning it on from the end, then locks against the thread when load is applied. On a long rod drop, that saves running a hex nut dozens of turns, and it eliminates the free end you would otherwise need to start the nut from. A standard 1/2-13 hex nut is what you want where the joint will be adjusted up and down repeatedly or where you need a defined torque; the SLN12 is for fast, one-direction landing on 1/2 inch rod.
3) Will a Metallics SLN12 fit 3/8 inch threaded rod?
No. The SLN12 is a 1/2-13 nut and will not grip 3/8-16 rod, which is the other common hanger size. For 3/8 inch rod you need the 3/8 size slip-on nut, not this one. Confirm the rod diameter at the deck insert before ordering, since 3/8 and 1/2 inch rod are often mixed in the same ceiling.
4) How many locknuts come in a bag of Metallics SLN12?
Five nuts per bag. The SLN12 is packaged in bag quantities of 5, so a run of hanger rod drops needs the bag count figured against how many rods you are landing.
5) Are Metallics SLN12 locknuts suitable for damp or exterior-adjacent electrical work?
The SLN12 is steel with a zinc finish (st-zn). Zinc plating handles normal indoor and protected locations, mechanical rooms, and ceiling spaces. For direct weather exposure, corrosive wash-down areas, or coastal exterior work, specify a stainless or hot-dip galvanized nut instead.
6) Is the Metallics SLN12 the right part number to reorder for a standardized 1/2 inch rod hanger program?
Yes, SLN12 is the manufacturer part number for the 1/2-13 slip-on locknut from Metallics, bagged in fives. One model, no finish or size options to pick between, so a facility standardizing on 1/2 inch rod drops can reorder on that number alone.
How fast can I get the Metallics SLN12 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 SLN12 come with a warranty?
Absolutely. The Metallics SLN12 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 SLN12?
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 SLN12 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.