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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Simpson Strong-Tie HDIA25 Hollow Drop-In Anchor for 1/4-in. Rod (100 Pack)Simpson Strong Tie HDIA25 Description The Simpson Strong Tie Hollow Drop In Anchor (HDIA) is an internally threaded, flush mount expansion anchor designed for use in hollow materials like CMU and hollow core plank, as well as solid base materials such as brick and concrete. Simpson Strong Tie HDIA25 Includes (100) Hollow Drop In Internally Threaded Anchor Simpson Strong Tie HDIA25 Features Suitable for suspending conduit, cable trays, pipe supports,
Simpson Strong-Tie HDIA25 Description
The Simpson Strong-Tie Hollow Drop-In Anchor (HDIA) is an internally threaded, flush-mount expansion anchor designed for use in hollow materials like CMU and hollow-core plank, as well as solid base materials such as brick and concrete.
Simpson Strong-Tie HDIA25 Includes
- (100) Hollow Drop-In Internally Threaded Anchor
Simpson Strong-Tie HDIA25 Features
- Suitable for suspending conduit, cable trays, pipe supports, fire sprinklers, and suspended lighting into concrete
- Expansion design allows anchoring into CMU, hollow-core plank, brick, normal-weight concrete, and lightweight concrete
- Internally threaded anchor allows for easy bolt removal
Simpson Strong-Tie HDIA25 Applications
- Suspending conduit and cable trays
- Pipe supports and fire sprinklers
- Suspended lighting into concrete
Simpson Strong-Tie HDIA25 Installation Overview
- Drill a hole in the base material using the specified diameter carbide drill bit.
- Blow the hole clean using compressed air.
- Insert the HDIA into the hole and tap with a hammer until flush against the surface.
- Using the designated setting tool, drive the anchor to the bottom of the drilled hole.
- Position the fixture, insert the fastener, and tighten.
Simpson Strong-Tie HDIA25 Specifications
| Material | Zamac 3 |
| Length | 3/4" |
| Accepts rod size | 1/4" |
| Drill bit size | 3/8" |
| For Treated Lumber | Yes |
| Quantity | 100 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1571 reviews
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Product Reviews
★★★★★ 5
This shelf is beautiful and well made.
Color: White, Size: 3Tier24in
Love this shelf!! It looks great in my bathroom and is both functional and easy to install. It is very well made and I have had many compliments. If you like this style I highly recommend.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Great Looking Shelf
Color: Brown, Size: 4Tier48in, Color: Brown, Size: 4Tier48in
I love this shelf! It took two people to hang it and you definitely want to ensure you hit a stud on at least one side or 1-2 screws if mounting between studs. It is heavy but a single person can lift it, just not maneuver easily due to its dimensions. It has a ton of room and fits mini helmets nicely in my office. Where I mounted it made it difficult to an extent to install but if you are even somewhat handy, you’ll be fine. You absolutely need a stud finder to hang this shelf. Sorry, I’m married! I would buy this shelf, or versions of it, again. Very practical and useful to display autographs, housewares or decor.
Last note: do not over tighten the poles. The wood is soft and the poles are light weight. They are not traditional black pipe and weigh far less.
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Very satisfied!
Color: Brown, Size: 3Tier48in, Color: Brown, Size: 3Tier48in
Quality product, very sturdy, real wood shelves, easy to put together and mount. Not too heavy and the size is nice.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
AWESOME Look and Quality
Color: Brown, Size: 2Tier60in
I love these shelves and have bought additional for other areas in the house. I love the look of the industrial pipes, the color of the shelves is perfect, they are sturdy and hold a lot of weight. They are somewhat difficult to assemble, but it's expected as hanging shelves are never fun to hang. I love them. If you are on the fence, just do it :)
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Reviewed in the United States on October 10, 2025
★★★★★ 4
Nice, but a bear to install
Color: Black, Size: 3Tier48in
Quality product that looks good on our shiplap wall of the wet bar space. The install was a real trip and extremely difficult. You definitely need 2 or more people to install as the direction tell you to put the entire item together, then hang on the wall. This makes it impossible to do yourself.
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Reviewed in the United States on April 20, 2026
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