Spider Metal Deck Anchor Cast in Place Concrete Insert

SKU # SX-MD, SX-MD-LP

Spider Metal Deck Cast-In-Place Concrete Insert is designed for fast, secure anchoring into metal deck. Installed before the pour, it creates a reliable fixing point for suspending MEP services—eliminating the need for post-install drilling or hot works.

Safe Working Load

Safe Working Load:

up to 1,700 lbs

Available Sizes

Available Sizes:

Rod sizes 3/8-3/4, and No.2-No.5 Toggle Kits

Forms

Forms:

Metal

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Metal Deck Cast-in-Place Concrete Inserts

 

Spider Cast-in-Place Metal Deck Concrete Inserts simplify anchor installation by creating a fixing point before the pour. No drilling or hot works needed. Spider ensures clean, fast, and safe installs across a range of projects.

Ideal for suspending pipework, ductwork, and cable tray, Spider offers high load performance and is fully compatible with our range of Push-In Toggles, including seismic-rated adapters for bracing and rigid suspension.

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How it Works:

Installation of the Spider Metal Deck Insert is shown below. Download the technical data pack for complete installation instructions and full product capabilities.

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Step 1. Drill a 1" diameter hole in the metal deck where the insert is needed.
Step 2. Push the Spider Insert through the hole until it’s seated correctly.
Step 3. Secure the insert to the deck using to ensure stability during the pour.
Step 4. Pour the concrete and allow it to fully cure to the required minimum compressive strength.
Step 5. Once cured, the Spider Insert is ready to accept the Spider Cable Push-In Toggle or Spider Rod Push-In Toggle for fast and secure suspension.

The Spider Metal Deck Range

Our Spider Metal Deck Cast-In-Place Concrete Inserts are available in 2 variants, standard and low profile. See load ratings here, or download the technical data packs for full product specifications.

Spider Variant Safe Working Load
Spider Metal Deck up to 1700 lbs | 770 kg
Spider Metal Deck Low Profile up to 1000 lbs | 450 kg

“The versatility (of Spider) with all the different attachments was one of the key things to this job. The toggle attachments mean we can use it with threaded rod, or switch back to cable. It makes it really versatile. I’ve been in the industry 27 years and this is definitely a game changer.”

Ryan Eder | Plumbing Superintendent – US Engineering

Watch the Full Case Study

Frequently Asked Questions

Yes. Screwed-in toggles are installed below deck quickly, dramatically reducing below-deck labor and assembly time.

Only Gripple’s own Swivel Cable Toggles, Threaded Rod Adapters, or Seismic Push-In Adapters are certified for use with the insert. Use with third-party products voids warranty.

Do not load the insert until the concrete has fully cured to its specified compressive strength.

Minimum concrete thickness and slab geometry must meet specifications based on ACI‑318 guidelines — for example, at least 4 in thicker slabs with proper edge distance and reinforcement. Separate guidelines apply for metal deck and wood form.

Yes. It’s ICC‑ES ESR‑4190 certified, UL‑listed per UL 2239, and UL 2043 for plenum use. Also, LARR approved by the Los Angeles Dept. of Building & Safety.

Yes, the system includes a Seismic Push-In Toggle Adapter variant rated for seismic restraint connections.

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