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Eaton B-Line series 4Dimension strut channel
Manufacturer Resources
Product Specs
- Certifications:
- Not Applicable
- Channel Type:
- 4D21
- 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:
- Pre-galvanized
- Product Material:
- Steel
B-LINE 4D21-120GLV – Frequently Asked Questions
1) Is pre-galvanized strut channel okay to use outdoors?
Pre-galvanized is a mill galvanized coating applied to the steel before roll forming, which leaves the cut ends and any field cuts bare. It is intended for dry indoor and protected areas. For open exterior runs, wet process areas, or coastal exposure, specify hot dip galvanized after fabrication or stainless instead. The 4D21-120GLV is the pre-galvanized version.
2) What gauge steel is the B-Line 4D21 channel, and what is a 10 foot stick going to weigh on the truck?
It is 18 gauge steel, and a full 120 inch length weighs 10.32 pounds. That is a light duty channel compared to the 12 gauge strut most people picture, so it is aimed at supporting conduit runs, small pipe, cable tray droppers, and similar light loads rather than heavy trapeze work.
3) What is the exact part number to order for the 10 foot pre-galvanized 4D21 strut?
Order Eaton B-Line part number 4D21-120GLV. The 4D21 is the channel profile, 120 is the length in inches, and GLV is the pre-galvanized finish.
4) Will the 4D21 channel work where I only have about an inch of clearance above a ceiling grid?
Yes. At 1.06 inches tall it fits tight plenum and soffit spaces where a full 1-5/8 inch deep channel will not clear. Width is 2.12 inches, so plan your hanger rod spacing and any back to back stacking around that footprint.
5) Does the 4D21 strut come with nuts, bolts or brackets?
No. This is plain channel only, a single 120 inch length of 18 gauge pre-galvanized steel. Strut nuts, hanger rod, end caps, and any fittings or brackets are ordered separately.
6) Do I need to do anything to the ends after I cut B-Line pre-galvanized strut to length?
Cut ends expose bare steel because the zinc goes on before forming, not after. In a dry conditioned space that is normally accepted. In damp or unheated areas, touch the cuts up with a zinc rich cold galvanizing compound, or use a hot dip galvanized channel instead of the GLV version.
How fast can I get the B-LINE 4D21-120GLV 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 4D21-120GLV come with a warranty?
Absolutely. The B-LINE 4D21-120GLV 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 4D21-120GLV?
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 4D21-120GLV from ZenSupply?
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and
rewards on
every order.
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