Simpson DIA37SS DIA Type 303/304 Stainless-Steel Drop-In Internally Threaded Anchor for 3/8-in. Rod by Simpson is a flush-mount expansion anchor engineered for use in solid base materials such as concrete. Constructed from Type 303/304 stainless steel, this internally threaded drop-in anchor delivers reliable, corrosion-resistant performance in demanding applications where a flush finished surface is required.

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: DIA37SS
• Material: Type 303/304 Stainless Steel
• Finish: Type 303/304 Stainless Steel
• Bolt/Rod Diameter: 3/8 in.
• Length: 1-9/16 in.
• Thread Length: 5/8 in.
• TPI: 16
• Drill Bit Diameter: 1/2 in.
• Anchor Body Material: AISI 303 - meets chemical requirements of ASTM A582
• Expander Plug Material: AISI 303
• Thread Type: UNC
• Packaging: Packs of 50 and Cartons of 250
• Country of Origin: Taiwan

Approved Applications

• Flush-mount anchoring in solid concrete base materials
• Applications requiring a 3/8-in. internally threaded rod connection
• Installations where the anchor surface must sit flush with the base material

Frequently Asked Questions

What drill bit diameter is required to install the DIA37SS anchor?

A 1/2-in. drill bit diameter is required for proper installation. Using an oversized hole will make it difficult to set the anchor and will reduce the anchor's load capacity.

What rod or bolt size is compatible with this drop-in anchor?

The DIA37SS is designed for use with a 3/8-in. rod or bolt. Minimum thread engagement should be equal to the nominal diameter of the threaded insert.

What material is this anchor made from, and is it suitable for corrosive environments?

This anchor is manufactured from Type 303/304 stainless steel, with the anchor body meeting the chemical requirements of ASTM A582. The stainless-steel construction provides enhanced resistance to corrosion compared to standard carbon-steel anchors.

What tools are needed to set the DIA37SS drop-in anchor?

Both hand- and power-setting tools are available for installation, allowing for fast, easy, and economical setting. 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.