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Eaton B-Line series 4Dimension strut channel
Manufacturer Resources
Product Specs
- Certifications:
- Not Applicable
- Channel Type:
- 4D21
- Hole Pattern:
- S
- Material Gauge:
- 18 Gauge
- Product Height:
- 1.06 IN
- Product Length Depth:
- 120 IN
- Product Weight:
- 10.32 LB
- Product Width:
- 2.12 IN
- Department:
- Electrical
- Product Finish:
- Yellow zinc chromate
- Product Material:
- Steel
- Product Length:
- 120 in
B-LINE 4D21S-120YZN – Frequently Asked Questions
1) Is the 4D21 strut channel solid back or slotted?
It's slotted. The S in 4D21S is the hole pattern designation, so the back of the channel carries the slotted pattern rather than being solid. That lets you drop a strut nut or a threaded rod hanger anywhere along the run without drilling, which is the point of using it for pipe trapezes and conduit racks.
2) Can I use yellow zinc chromate strut channel outdoors?
Keep it inside. Yellow zinc chromate is a plated indoor finish on steel, fine for mechanical rooms, ceiling spaces and dry interior conduit runs. For rooftops, exterior walls, wash-down areas or anywhere it sees weather or standing moisture, specify hot dip galvanized or stainless strut instead.
3) What gauge steel is this B-Line 4Dimension strut, and is 18 gauge heavy enough for my run?
18 gauge steel. That's the light-duty end of the strut range, suited to conduit racks, small pipe runs, low voltage tray, signage and light equipment mounting. For heavy pipe trapezes, seismic bracing or long unsupported spans, step up to a 12 gauge channel or a back-to-back double section.
4) How do I identify the exact B-Line part number when reordering this strut?
Order by MPN 4D21S-120YZN. Read it in pieces: 4D21 is the 4Dimension channel profile, S is the slotted hole pattern, 120 is the length in inches, and YZN is the yellow zinc finish. Change any one of those segments and you get a different channel, so quote the full string to keep a job standardized.
How fast can I get the B-LINE 4D21S-120YZN 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 4D21S-120YZN come with a warranty?
Absolutely. The B-LINE 4D21S-120YZN 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 4D21S-120YZN?
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 4D21S-120YZN 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.