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Description
Simpson Strong-Tie HDIA37 (3/8") Hollow Drop-In Internally Threaded Anchor for Rod (50 Pack)Simpson Strong Tie HDIA37 Description The HDIA Hollow Drop In Anchor is designed for suspending conduit, cable trays, pipe supports, fire sprinklers, and lighting into concrete. Its expansion design allows anchoring into various materials including CMU, hollow core plank, brick, and concrete. Simpson Strong Tie HDIA37 Includes (50) Hollow Drop In Internally Threaded Anchors Simpson Strong Tie HDIA37 Features Suitable for suspending conduit, cable
Simpson Strong-Tie HDIA37 Description
The HDIA Hollow Drop-In Anchor is designed for suspending conduit, cable trays, pipe supports, fire sprinklers, and lighting into concrete. Its expansion design allows anchoring into various materials including CMU, hollow-core plank, brick, and concrete.
Simpson Strong-Tie HDIA37 Includes
- (50) Hollow Drop-In Internally Threaded Anchors
Simpson Strong-Tie HDIA37 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 HDIA37 Applications
- Suspending conduit and cable trays
- Pipe supports and fire sprinklers
- Suspended lighting installations
- Anchoring into concrete, CMU, hollow-core plank, and brick
Simpson Strong-Tie HDIA37 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
- Perform additional hammer blows to drive the anchor body over the cone
- Position fixture, insert fastener, and tighten
Simpson Strong-Tie HDIA37 Specifications
| Material | Die-cast Zamac 3 alloy shell with carbon-steel cone or Type 304 stainless-steel cone |
| Application | Mechanical / Electrical / Plumbing |
| Drill Bit Diameter | 5/8 in. |
| Rod Diameter | 3/8 in. |
| Length | 1 1/4 in. |
| Threads per Inch | 16 |
| Package Quantity | 50 |
| Carton Quantity | 200 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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- 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
4.9 ★★★★★
Based on 1497 reviews
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Product Reviews
★★★★★ 4
Fun, but not for aggressive chewers
Pattern Name: Classic Squeaky Tug
My dog really enjoyed this toy. However, not a you for an aggressive chewer. Was in pieces in 20 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 3
Large adult aggressive chewer? No. Puppy? Yes
Pattern Name: Classic Squeaky Tug
My large adult dog who is an aggressive chewer got this toy in pieces within minutes, BUT this is a great toy for a lighter touched dog. When I got my newest addition (Malinois mix puppy. Pls thoughts and prayers for me), this toy came to mind because she loves chewing and she’s only 11 weeks old! She needed an interesting toy that is sturdy and won’t hurt her teeth or gums, but is still interesting (the rope piece and the squeaker). She’s not nearly as rough of a chewer as my older guy YET. But when she gets bigger, she will more than likely destroy this. She is almost 20lbs at 11 weeks right now, so I will update if she does destroy it.
Long story short:
Not good for large aggressive chewers, good for aggressive chewers on the smaller side (maybe 15-30lbs)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
lasted about 2 hours
Pattern Name: Classic Squeaky Tug, Pattern Name: Classic Squeaky Tug
my 2 yorkies fought over it. the squeaker lasted maybe 2 hrs, being generous
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Great toy!!
Pattern Name: Classic Squeaky Tug
Love, LOVE, LOOOVVVEEE this toy!! Finally, an actual indestructable toy for my super chewer!! As others have said, the little rope thing came off in less than an hour, LOL. But the 'Corn cob' is great!! My baby LOVES this thing and chews on it constantly and it shows no sign of wear!! I am optmistic that it will actually last more than a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Great for aggressive chewers
Pattern Name: Classic Squeaky Tug
This is my dogs new favorite toy. I’ve had it close to a month I think. She is an aggressive chewer and it’s still intact
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
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