The Simpson DIA376SS Drop-In Internally Threaded Anchor from Simpson is a Type 316 stainless steel flush-mount expansion anchor engineered for secure, permanent fastening in solid concrete base materials. Designed to accept 3/8-in. threaded rod, this internally threaded drop-in anchor delivers a clean, flush finish ideal for demanding concrete applications where corrosion resistance and reliable load performance are critical.

Key Features

• Flush-mount expansion anchor for concrete applications
• Hand- and power-setting tools available for fast, easy and economical installation
• Fixed-depth stop bit helps you drill to the correct depth every time
• Rod size: 3/8 in.
• Drill bit diameter: 1/2 in.
• Length: 1-9/16 in.
• Caution: Oversized holes will make it difficult to set the anchor and will reduce the anchor's load capacity

Specifications

• MPN: DIA376SS
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Bolt/Rod Diameter: 3/8 in.
• Length: 1-9/16 in.
• Thread Length: 5/8 in.
• Drill Bit Diameter: 1/2 in.
• TPI: 16
• Thread Type: UNC
• Anchor Body Material: Type 316 Stainless Steel
• Expander Plug Material: Type 316 Stainless Steel
• Packaging: Packs of 50 and Cartons of 250
• Country of Origin: Taiwan

Approved Applications

• Flush-mount fastening in solid concrete base materials
• Applications requiring 3/8-in. threaded rod connections
• Installations demanding Type 316 stainless steel corrosion resistance
• Overhead and standard concrete anchoring where a flush surface finish is required

Frequently Asked Questions

What size drill bit is required to install the DIA376SS drop-in anchor?

The DIA376SS requires a 1/2-in. drill bit for proper installation. Using an oversized hole will make it difficult to set the anchor and will reduce the anchor's load capacity, so drilling to the correct diameter is essential.

What threaded rod size is compatible with the DIA376SS?

The DIA376SS is designed to accept 3/8-in. threaded rod. The thread specification is UNC with 16 threads per inch (TPI), and the thread length is 5/8 in. Minimum thread engagement should be equal to the nominal diameter of the threaded insert.

What base materials is the DIA376SS drop-in anchor approved for use in?

The DIA376SS is an internally threaded drop-in expansion anchor intended for use in solid base materials, specifically solid concrete. It is not intended for use in hollow or lightweight masonry materials.

What installation tools are compatible with the DIA376SS?

Both hand- and power-setting tools are available for installing the DIA376SS, allowing for fast, easy, and economical installation. A fixed-depth stop bit is also available to help ensure the hole is drilled to the correct depth every time.

Note: Product dimensions may differ from picture. Please see item description for specifications.