B-Line B321-1ZN Eaton series b...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$251.66
$239.18
B-Line B321-1ZN Eaton series beam clamps, 1300 lb, Steel, Safety factor of 5, setscrew included, Beam clamp, 3/8”-16 thread/rod size, 3/8”-16 screw size, 1-11/16” beam thickness, Electro-plated zinc

B-Line B321-1ZN Eaton series beam clamps, 1300 lb, Steel, Safety factor of 5, setscrew included, Beam clamp, 3/8”-16 thread/rod size, 3/8”-16 screw size, 1-11/16” beam thickness, Electro-plated zinc

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Model: B321-1ZN
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$251.66
$239.18
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Eaton B-Line series beam clamps, 1300 lb, Steel, Safety factor of 5, setscrew included, Beam clamp, 3/8”-16 thread/rod size, 3/8”-16 screw size, 1-11/16” beam thickness, Electro-plated zinc

Manufacturer Resources

Product Specs

Beam Thickness:
.313 in
Certifications:
cULus Listed
Load Capacity:
1300 lb
Product Height:
3.5625 in
Product Length Depth:
3.25 in
Product Weight:
1.87 lb
Product Width:
.625 in
Set Screw Size:
3/8”-16
Special Features:
Safety factor of 5, setscrew included
Thread Rod Size:
3/8”-16
Department:
Electrical
Product Group:
Clamps & Supports
Product Subgroup:
Clamps
Product Type:
Beam clamp
Product Details:
Beam clamp
Product Material:
Steel

B-LINE B321-1ZN – Frequently Asked Questions

1) What size hanger rod does the B-Line B321-1ZN beam clamp take?
The B321-1ZN is threaded 3/8"-16, so it accepts standard 3/8" all-thread rod. The setscrew that locks it to the beam flange is the same 3/8"-16 size and ships with the clamp, so you don't need to source it separately.
2) Will a zinc-plated beam clamp like the B321-1ZN hold up outdoors or in a wet area?
The B321-1ZN is steel with an electro-plated zinc finish. That's a dry indoor or protected interior finish, fine for mechanical rooms, ceilings, and plenums. For exterior, wash-down, coastal, or corrosive process areas, step up to a hot-dip galvanized or stainless beam clamp instead, because plated zinc will bloom and rust.
3) Do I need to weld or drill the beam to install a B321-1ZN clamp?
No drilling and no welding. The B321-1ZN is a setscrew beam clamp: it hooks over the beam flange and the 3/8"-16 setscrew tightens against it to lock the clamp in place. The steel stays untouched, which is why these get used on existing structure where the engineer won't allow field holes in the beam.
4) Can I hang sprinkler pipe or plumbing from a B321-1ZN, or is it only for electrical?
Mechanically it's a 1300 lb steel setscrew beam clamp with a 3/8"-16 rod tap, which is the same attachment a pipe hanger uses. It is catalogued and cULus Listed as electrical support hardware, though. Fire sprinkler hangers have their own listing requirements, so for sprinkler work use a clamp specifically listed for that service.
5) How much clearance do I need around a B-Line B321-1ZN beam clamp?
The clamp body measures 3.5625 in, 3.25 in, and .625 in across its three dimensions, so it's a narrow profile that will sit between closely spaced beams or tight to a deck. It weighs 1.87 lb each, which matters when you're pricing a pallet quantity or hauling a few hundred up to a ceiling.
6) What is the exact part number to order this Eaton B-Line beam clamp?
Order it as B321-1ZN, the Eaton B-Line series beam clamp in electro-plated zinc. The ZN suffix is the zinc-plated finish; the clamp is otherwise the 1300 lb, 3/8"-16 rod-size B321 body.
How fast can I get the B-LINE B321-1ZN 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 B-LINE B321-1ZN come with a warranty?
Absolutely. The B-LINE B321-1ZN 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 B-LINE B321-1ZN?
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 B-LINE B321-1ZN from ZenSupply?
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