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Manufacturer Resources
Product Specs
- Application:
- Suitable for solid and hollow core materials
- Certifications:
- UL Listed
- Product Diameter:
- .5 in
- Product Height:
- 2.25 in
- Product Weight:
- .102 lb
- Department:
- Electrical
- Product Group:
- Fasteners
- Product Subgroup:
- Anchors
- Product Type:
- Sleeve type expansion anchors
- Product Details:
- Sleeve type expansion anchors
- Product Material:
- Zinc plated
B-LINE ASA-37-300HNR – Frequently Asked Questions
1) Can I use a sleeve anchor in hollow block, or does it need solid concrete?
Both. The ASA-37-300HNR is rated for solid and hollow core materials, which is the main reason to pick a sleeve anchor over a wedge anchor - the expanding sleeve grips against the wall of a hollow block cell instead of relying on a solid mass of concrete. For solid concrete only, a wedge anchor is the usual choice.
2) Is this B-Line anchor UL Listed for electrical support work?
The ASA-37-300HNR carries a UL Listing, which is what most electrical inspectors want to see when an anchor is carrying strut, conduit racks, or cable tray supports. It is an Eaton B-Line electrical fastener, not a general hardware-store anchor.
3) Will a zinc plated sleeve anchor hold up outdoors or in a wet area?
The plating on the ASA-37-300HNR is zinc, which is a mild corrosion coating meant for dry interior work - mechanical rooms, parking garages under cover, interior block walls. For a continuously wet, washdown, or coastal exterior location, specify a stainless anchor instead.
4) What drill bit size do I need for a 3/8 inch sleeve anchor?
A sleeve anchor is drilled with a carbide bit matching the anchor's nominal diameter, so a 3/8 inch anchor takes a 3/8 inch hammer-drill bit. Drill through the fixture where possible, blow the hole clean, then drive the ASA-37-300HNR through and tighten the nut to expand the sleeve.
5) How much material thickness can the 3/8 x 3 inch B-Line anchor fasten through?
With a 3 inch overall length, the usable grip is whatever remains after the expansion section is seated in the base material, so it suits thin fixtures like strut channel, bracket ears, or a mounting plate against block or concrete. If you are fastening through a thick standoff or a layer of insulation, step up to a longer anchor.
6) Is the nut and washer included with the ASA-37-300HNR, or do I order those separately?
A sleeve type expansion anchor is supplied as an assembly - the threaded stud, expansion sleeve, and the nut and washer that tighten it. The ASA-37-300HNR ships ready to drive, so nothing extra is needed beyond a correctly sized carbide bit.
How fast can I get the B-LINE ASA-37-300HNR 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 ASA-37-300HNR come with a warranty?
Absolutely. The B-LINE ASA-37-300HNR 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 ASA-37-300HNR?
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 ASA-37-300HNR 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.