Nut 3/4-10 Hvy Hx Nut St-Zn (100pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Nuts
Metallics HHN34C – Frequently Asked Questions
1) What thread size is the Metallics HHN34C heavy hex nut?
The HHN34C is a 3/4-10 nut, meaning 3/4 inch nominal diameter with 10 threads per inch, which is the standard UNC coarse pitch for 3/4 inch rod and bolts. It will thread onto 3/4-10 all-thread rod, anchor bolts, and hex bolts; it will not fit 3/4-16 fine thread.
2) What is the difference between a heavy hex nut and a standard finished hex nut in 3/4-10?
A heavy hex nut like the HHN34C has a larger across-flats width and greater thickness than a finished hex nut of the same 3/4-10 thread. That extra bearing area spreads load over a wider footprint, which is why heavy hex is the usual call on structural connections, strut and trapeze hangers, and anchor bolts. It also means a bigger wrench size, so check your socket and the clearance in the connection before swapping a finished hex for heavy hex.
3) Are these 3/4-10 nuts plated for corrosion resistance, and can I use them outdoors?
These are steel nuts with a zinc finish. Zinc plating handles indoor and protected-exterior service and resists general rust in dry or sheltered conditions. For constant weather exposure, wet locations, pool areas, or coastal air, zinc is on the light side; hot-dip galvanized or stainless is the better call there. Also match the plating to your rod, pairing a zinc nut with hot-dip rod can bind on the thread fit.
4) Can I use these heavy hex nuts for electrical trapeze hangers and strut support runs?
Yes, that is the typical use. The HHN34C is catalogued with electrical fasteners and in 3/4-10 it matches the all-thread rod commonly used for overhead trapeze supports, conduit racks, and strut hangers. Pair it with a flat washer where it bears on strut or channel so the nut does not pull through the slot, and use a second nut or a lock nut where vibration is a concern.
5) How many nuts come in a box of Metallics HHN34C?
HHN34C is packed 100 pieces per box. For an electrical or mechanical crew running 3/4 inch rod on trapeze hangers, that is a job-quantity box rather than a loose count, so figure two nuts per hanger point when you estimate how many boxes the run needs.
How fast can I get the Metallics HHN34C delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 HHN34C come with a warranty?
Absolutely. The Metallics HHN34C 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 HHN34C?
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