Simpson Anchors
Simpson Strong-Tie CSD25300MG (1/4" x 3") Split-Drive Anchors Mechanically Galvanized (100 Pack)
$42.80Unit price /UnavailableVery low stock (3 units)Simpson Anchors
Simpson Strong-Tie CSD25400MG (1/4" x 4") Split-Drive Anchors Mechanically Galvanized (100 Pack)
$59.69Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie DSD25300 (1/4 in. x 3 in.) Duplex-Head Split-Drive Anchor Zinc-Plated (100 Pack)
$57.30$58.29Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie CSD25300 (1/4 in. x 3 in.) Zinc-Plated Split-Drive Anchors (100 Pack)
$34.25$37.93Unit price /UnavailableVery low stock (7 units)

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
Frequently Asked Questions
What tools do I need to install split-drive anchors?
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?
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?
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?
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?
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?
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.