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Simpson Split-Drive Anchors

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Simpson Split-Drive Anchor Types

  • Simpson CSD Countersunk Split-Drive Anchors: Flush-mount expansion anchors for concrete, grout-filled block, and stone applications
  • Simpson DSD Duplex Split-Drive Anchors: Split-drive anchors with duplex heads for removable fixture applications in masonry substrates
  • Simpson Mechanically Galvanized Split-Drive Anchors: Enhanced corrosion protection for exterior applications and moderate moisture environments
  • Simpson Zinc-Plated Split-Drive Anchors: Standard corrosion resistance for interior and protected exterior installations
  • Simpson Mushroom Head Split-Drive Anchors: Low-profile anchors with minimal surface protrusion requirements
Simpson Strong-Tie Split-Drive Anchors: Professional Guide

Simpson Strong-Tie split-drive anchors are engineered to handle light to medium-duty fastening applications, delivering reliable holding power in concrete and solid masonry installations.

These anchors provide a straightforward solution for permanent attachments where immediate loading capability and installation efficiency are priorities on the jobsite.

Split-Drive Anchor Overview

Split-Drive Anchors: Simple hammer-set anchors that expand upon installation without requiring nuts or additional hardware. The split design creates immediate holding power in concrete and solid masonry applications through pre-formed expansion curves that activate when driven into pre-drilled holes.

The one-piece construction eliminates secondary operations - just drill the hole to specification, insert the anchor, and drive it home with hammer blows. No torquing, curing time, or specialized setting tools required, making them efficient for high-volume installation work where speed and simplicity matter.

These anchors work by expanding against the hole walls when the drive pin is hammered home, creating mechanical interlock with the base material. The expansion mechanism distributes loads across the concrete surface while providing immediate load-carrying capacity upon installation.

Available in multiple diameters and embedment lengths to match different load requirements and base material thicknesses. Standard zinc-plated carbon steel construction provides adequate corrosion resistance for most interior and protected exterior applications, with stainless steel options available for harsh environmental conditions.

Made for Professional Performance

Simpson Strong-Tie split-drive anchors are designed to meet specific load requirements for non-structural and light structural applications. When you need fastening solutions that install quickly and perform reliably in solid concrete and masonry substrates, split-drive anchors provide dependable holding power to keep projects on schedule and within code requirements.

Frequently Asked Questions

What tools do I need to install split-drive anchors?

You need a hammer drill with masonry bits, compressed air or wire brush for hole cleaning, and a standard hammer or pneumatic setting tool for driving the anchor.

Can split-drive anchors be removed after installation?

No, split-drive anchors are permanent fasteners. Once the expansion mechanism is activated, removal typically requires drilling out the anchor, which damages the base material.

What's the minimum concrete strength required?

Split-drive anchors require a minimum concrete strength of 2,500 psi for full rated loads. Lower strength concrete will reduce holding capacity.

What's the difference between CSD and DSD anchors?

CSD anchors have countersunk heads for flush mounting, while DSD anchors have duplex heads that allow for easier fixture removal and reinstallation.

How do I know when the anchor is properly set?

You'll feel increased resistance when hammering, and the expansion head should be flush or slightly below the surface. The drive pin should be fully seated.

How do split-drive anchors compare to wedge anchors?

Split-drive anchors install faster and don't require torquing, but wedge anchors typically offer higher load capacity for structural applications.

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