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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:
- 240 IN
- Product Weight:
- 20.64 LB
- Product Width:
- 2.12 IN
- Department:
- Electrical
- Product Finish:
- Yellow zinc chromate
- Product Material:
- Steel
- Product Length:
- 240 in
B-LINE 4D21S-240YZN – Frequently Asked Questions
1) Is the B-Line 4D21S-240YZN slotted or solid back?
Slotted. The S in 4D21S is the hole pattern designation, so the back is punched with the slot pattern rather than run solid. That lets you drop a channel nut or a threaded rod hanger anywhere along the run without field drilling.
2) Can yellow zinc chromate strut channel be used outdoors?
Keep it inside. The 4D21S-240YZN is 18 gauge steel with a yellow zinc chromate finish, which is a dry-interior coating. For exposed exterior runs, rooftops, parking structures or wash-down areas, order hot dip galvanized or stainless channel instead.
3) What does the 4D21S-240YZN part number break down to?
Eaton B-Line breaks it into four pieces: 4D21 is the 4Dimension channel type, S is the slotted hole pattern, 240 is the length in inches, and YZN is the yellow zinc chromate finish. If you are matching an existing run, the 4D21 and the S are the two parts that have to agree.
4) Can I cut this strut to length on site, and what do I do about the cut end?
Yes, steel channel cuts with a bandsaw, chop saw with a metal blade or a portable band saw. The cut face loses its zinc chromate coating, so touch it up with a cold galvanizing or zinc-rich spray to keep rust out of an interior run, and deburr the edge before you slide a nut past it.
How fast can I get the B-LINE 4D21S-240YZN 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-240YZN come with a warranty?
Absolutely. The B-LINE 4D21S-240YZN 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-240YZN?
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-240YZN 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.