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Simpson Anchor Bolts & Foundation Bolts

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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.

Simpson Anchor Bolts & Foundation Bolts

Anchor bolts are the backbone of structural construction, embedding deep into concrete to secure steel columns, wood framing, heavy machinery, or seismic hold-down systems. Simpson Strong-Tie offers one of the most comprehensive lineups of foundation bolts and accessories, trusted by builders, engineers, and contractors for their strength, code compliance, and field-tested reliability. Whether it’s cast-in-place installation or post-installed retrofits, Simpson provides a bolt solution that keeps your foundation connections safe and lasting.

Simpson Anchor Bolts (Model PAB)

Designed for tilt-up construction and pre-engineered metal buildings, PAB anchor bolts deliver reliable performance where precision alignment and stability are critical. Their engineered design ensures strong, code-approved fastening for structural steel connections and wall panels.

Simpson Anchor Bolts (Model RFB)

Rebar fastening bolts (RFB) are threaded rods made to bond into cured concrete using epoxy. Perfect for retrofit or repair applications, RFBs develop exceptional load capacity and provide a seamless connection between existing foundations and new construction.

Simpson Anchor Bolts (Model SB)

SB anchor bolts are engineered cast-in-place solutions for structural hold-downs and shear walls. Built for heavy tension and uplift loads, these bolts are widely used in seismic and high-wind zones where code compliance is non-negotiable.

Simpson Anchor Bolts (Model SSTB)

SSTB anchor bolts are pre-engineered, code-listed anchors designed specifically for use with Simpson Strong-Tie hold-downs. They simplify installation, save time on the jobsite, and provide the strength needed for shear wall and structural applications in demanding environments.

Simpson Coupler Nuts (Model CNW-HSCNW)

Coupler nuts extend the length of threaded rod or anchor bolts, making them a key accessory in foundation and retrofit work. Simpson’s CNW and HSCNW coupler nuts are built for high-strength connections and allow contractors to adapt anchors to project-specific requirements without sacrificing performance.

Simpson Wedge Anchors

For post-installed anchoring, Simpson wedge anchors provide heavy-duty fastening directly into cured concrete. Once tightened, they expand to lock in place, resisting vibration and pullout. Available in zinc, galvanized, and stainless steel finishes, they’re a go-to for machinery bases, structural retrofits, and equipment anchoring.

Why Choose Simpson Foundation Bolts?

Simpson Strong-Tie is a name synonymous with structural safety. Each bolt, coupler, and anchor is engineered to meet strict building codes and withstand the toughest conditions, which is from seismic loads to outdoor exposure. With cast-in-place and post-installed options, plus a full line of accessories, Simpson foundation bolts deliver flexibility and confidence for any project.

Frequently Asked Questions

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?

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?

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?

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?

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?

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.

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