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 Anchors
Simpson Strong-Tie RFB#5X8HDGP2 (5/8" x 8") Hot-Dip Galvanized Retrofit Bolt (2 Pack)
Regular price $15.74Unit priceLow stock (15 units)Simpson Anchors
Simpson Strong-Tie RFB#4X4 (1/2" x 4") Zinc-Plated Retrofit Bolt
Regular price $2.45Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SB5/8X24HDG (5/8" x 24") Hot-Dip Galvanized Anchor Bolt for Concrete Applications
Regular price $35.17Unit priceLow stock (10 units)Simpson Anchors
Simpson Strong-Tie HSCNW1 (1") High-Strength Coupler Nut with Witness Hole
Regular price $45.53Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie RFB#4X6 (1/2 in. x 6 in.) Zinc-Plated Retrofit Bolt
Sale price $3.24 Regular price $4.14Unit priceIn stock (34 units)Simpson Anchors
Simpson Strong-Tie SSWAB3/4X24 Strong-Wall (3/4" x 24") Heavy Duty Steel Anchor Bolt for Shearwalls
Regular price $16.24Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Regular price $33.59Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SSTB24LHDG (5/8 in. x 28-1/8 in.) Hot-Dip Galvanized Anchor Bolt
Regular price $27.50Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SSTB20LHDG (5/8 in. x 24-5/8 in.) Hot-Dip Galvanized Anchor Bolt
Regular price $25.27Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SSTB20HDG-R (5/8 in. x 21-5/8 in.) Hot-Dip Galvanized Anchor Bolt
Regular price $18.21Unit priceBackorder - Ships In 3-7 DaysSimpson Anchors
Regular price $17.64Unit priceBackorder - Ships In 3-7 Days
Simpson Strong-Tie Anchor Bolts in Concrete Foundation

Simpson Strong-Tie Anchor Bolts
Simpson Anchor Bolts (Model PAB): Pre-assembled anchor bolts designed for tilt-wall and panelized construction. Provide reliable anchoring with code-rated performance for commercial and industrial projects.
Simpson Anchor Bolts (Model RFB): Rebar fastening bolts used in post-installed applications with epoxy. Ideal for bonding into cured concrete when retrofitting or reinforcing foundations.
Simpson Anchor Bolts (Model SB): Code-approved anchor bolts for holdowns and shear walls in high-load or seismic areas. Trusted for structural framing where strength and compliance are critical.
Simpson Anchor Bolts (Model SSTB): Pre-engineered, cast-in-place anchor bolts designed for shearwall and holdown applications. Offer high-capacity anchoring in new concrete foundations.
Frequently Asked Questions
What are Simpson PAB Anchor Bolts used for?
What are Simpson PAB Anchor Bolts used for?
PAB anchors are pre-assembled bolts commonly used in tilt-up and panelized construction. They provide stable, code-rated anchoring in large concrete wall panels and structural bases.
Where are SB Anchor Bolts typically installed?
Where are SB Anchor Bolts typically installed?
SB bolts are cast-in-place anchors designed for use with holdowns and shear walls. They’re often specified in seismic or high-load zones where compliance and strength are required.
What is the main purpose of foundation anchor bolts?
What is the main purpose of foundation anchor bolts?
Foundation anchor bolts secure structural elements, such as steel columns, wood framing, or heavy equipment, to concrete. They provide the critical base connection that resists uplift, shear, and lateral forces.
What are coupler nuts used for in anchor systems?
What are coupler nuts used for in anchor systems?
Coupler nuts (CNW/HSCNW) connect threaded rods or extend anchor bolts. They’re useful in repair, retrofit, or tall-wall installations where standard bolt lengths aren’t sufficient.
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.
What’s the difference between wedge anchors and cast-in-place anchors?
What’s the difference between wedge anchors and cast-in-place anchors?
Cast-in-place anchors (like PAB, SB, SSTB) are set before pouring concrete, while wedge anchors are post-installed into cured concrete. Wedge anchors are ideal for retrofits, but cast-in-place anchors are typically required for new builds.