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ADR21-21 WITH SOCKET HEAD SCREWS
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Group:
- Wire & Cable Management
- Product Type:
- Mechanical connectors
- Selling Unit Of Measure:
- each
- Type2:
- Mechanical connectors
- Department:
- Electrical
- Product Subgroup:
- Connectors
Blackburn ADR21-21SH – Frequently Asked Questions
1) What is the difference between the ADR21-21SH and the standard ADR21-21?
The SH suffix means the connector ships with socket head screws. Everything else is the ADR21-21 connector. Socket head screws take an Allen key or hex bit instead of a hex driver or wrench, which is what you want when the connector sits in a tight enclosure or where a spec calls for a recessed drive.
2) What is the Blackburn ADR21-21SH?
It's a mechanical connector from Blackburn, part number ADR21-21SH, which is the ADR21-21 supplied with socket head screws rather than hex head. Mechanical connectors like this are torqued down onto the conductors with the screws, so no crimp tool or compression die is needed to make the connection.
3) Do I need a crimp tool to install the Blackburn ADR21-21SH?
No. This is a mechanical connector, so the conductors are clamped by tightening the socket head screws with a hex key or hex bit. There's no crimping or compression tooling involved, which is why electricians reach for mechanical connectors on service and repair work where dragging a hydraulic crimper to the job isn't practical.
How fast can I get the Blackburn ADR21-21SH 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 Blackburn ADR21-21SH come with a warranty?
Absolutely. The Blackburn ADR21-21SH 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 Blackburn ADR21-21SH?
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 Blackburn ADR21-21SH 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.