Simpson Anchors
Simpson Strong-Tie EWS373P (3-1/2") Opti-Mesh Epoxy Adhesive Plastic Screen Tube for 3/8" Rod
Regular price $3.60Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie HDIA37 (3/8") Hollow Drop-In Internally Threaded Anchor for Rod (50 Pack)
Regular price $67.43Unit priceVery low stock (2 units)Simpson Anchors
Regular price $20.84Unit priceVery low stock (1 unit)- 4% off
Simpson Anchors
Sale price $10.57 Regular price $11.00Unit priceLow stock (10 units) Simpson Anchors
Simpson Strong-Tie CSD25400 (1/4" x 4") Zinc-Plated Split-Drive Anchor (100 Pack)
Regular price $50.47Unit priceVery low stock (2 units)Simpson Anchors
Simpson Strong-Tie CSD25300MG (1/4" x 3") Split-Drive Anchors Mechanically Galvanized (100 Pack)
Regular price $42.80Unit priceVery low stock (2 units)Simpson Anchors
Simpson Strong-Tie THDB62800H Titen HD (5/8" x 8") Heavy-Duty Screw Anchor - Zinc Plated (10 Pack)
Regular price $80.32Unit priceIn stock (34 units)Simpson Anchors
Simpson Strong-Tie SSTB36 (7/8" x 36-7/8") Anchor Bolt for Concrete Applications
Regular price $41.97Unit priceVery low stock (5 units)- 30% off
Simpson Anchors
Simpson Strong-Tie SSTB28L (7/8" x 32-7/8") Anchor Bolt for Concrete Applications
Sale price $36.58 Regular price $52.61Unit priceVery low stock (8 units) - 38% off
Simpson Anchors
Simpson Strong-Tie SSTB28HDG (7/8 in. x 29-7/8 in.) Hot-Dip Galvanized Anchor Bolt
Sale price $47.65 Regular price $76.86Unit priceVery low stock (8 units) - 30% off
Simpson Anchors
Simpson Strong-Tie SSTB24L (5/8 in. x 28-1/8 in.) Anchor Bolt for Concrete Applications
Sale price $14.91 Regular price $21.44Unit priceIn stock (24 units) Simpson Anchors
Simpson Strong-Tie RFB#3X8 (3/8" x 8") Zinc-Plated Retrofit Bolt for Concrete and Masonry Anchoring
Regular price $2.57Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie RFB#5X8 (5/8" x 8") Zinc-Plated Retrofit Bolt for Concrete and Masonry Anchoring
Regular price $4.90Unit priceIn stock (46 units)Simpson Anchors
Simpson Strong-Tie RFB#3X4HDG (3/8 in. x 4 in.) Hot-Dip Galvanized Retrofit Bolt
Regular price $1.94Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie RFB#4X8HDGP2 (1/2" x 8") Hot-Dip Galvanized Retrofit Bolt (2 Pack)
Regular price $10.50Unit priceVery low stock (1 unit)Simpson Anchors
Simpson Strong-Tie RFB#5X5HDGP2 (5/8" x 5") Hot-Dip Galvanized Retrofit Bolt (2 Pack)
Regular price $12.61Unit priceVery low stock (5 units)
Simpson Strong-Tie Mechanical Anchors and Concrete Adhesives

Simpson Concrete Screws
- Blue Concrete Screws (Titen Turbo™): Innovative Torque Reduction Channel and reverse thread design for fast, reliable anchoring in concrete and masonry
- Simpson Bronze Concrete Screws: Durable bronze-coated screws that blend with darker masonry while providing structural strength
- Simpson Large Diameter Concrete Screws: Heavy-duty anchors with deeper threads for high-load applications and structural connections
- Simpson Rod Hanger Concrete Screws: Integrated internal threads for quick overhead rod suspension in commercial and industrial builds
- Simpson Stainless Steel Concrete Screws: Corrosion-resistant fasteners for harsh environments, including coastal, agricultural, and wet conditions
- Simpson White Concrete Screws: Low-profile masonry screws that blend with light-colored surfaces for discreet, professional finishes
Frequently Asked Questions
What types of projects are Simpson concrete anchors suitable for?
What types of projects are Simpson concrete anchors suitable for?
Simpson anchors are designed for both structural and non-structural applications, including temporary attachments, permanent structural connections, wood-to-concrete fastenings, and masonry restoration. They provide reliable holding power across various substrates.
How do concrete screws differ from other anchors?
How do concrete screws differ from other anchors?
Concrete screws are self-tapping fasteners that attach directly to concrete and masonry without the need for chemical adhesives or expansion. They are perfect for applications where removable fastening is required, like attaching wood or fixtures to concrete.
How do I install adhesive anchors correctly?
How do I install adhesive anchors correctly?
Drill a clean hole to the specified diameter, remove dust, inject the adhesive, and insert the rod or rebar. Allow the chemical to cure for the recommended time before applying load. Following the manufacturer’s instructions ensures optimal performance.
What are Simpson Strong-Tie drop-in anchors, and where are they used?
What are Simpson Strong-Tie drop-in anchors, and where are they used?
Drop-in anchors are internally threaded expansion anchors installed flush with the concrete surface. They accept machine screws, making them ideal for overhead installations and clean, professional surface-mount connections.
What is the difference between sleeve anchors and wedge anchors?
What is the difference between sleeve anchors and wedge anchors?
Sleeve anchors are versatile, through-fastening anchors suitable for multiple base materials and removable connections. Wedge anchors are heavy-duty expansion anchors designed for permanent, high-load connections in solid concrete.
How do I choose the right anchor for my project?
How do I choose the right anchor for my project?
Selection depends on the base material, load requirements, and whether the connection is permanent or removable. For solid concrete, wedge anchors or adhesive anchors work well for structural connections, while concrete screws or sleeve anchors are better for removable or light-duty installations.