Item # SIMSTB2-37700
3/8" X 7" SIMPSON STRONG-BOLT 2 WEDGE ANCHOR CS ZINC
Item # SIMSTB2-37700
3/8" X 7" SIMPSON STRONG-BOLT 2 WEDGE ANCHOR CS ZINC
- UM: EA
The SIMSTB2-37700 is a Simpson Strong-Tie Strong-Bolt 2 wedge anchor: 3/8" diameter x 7" length, Carbon Steel, Zinc Plated finish. Used for anchoring into solid concrete in structural, equipment-mounting, and utility installations.
Specifications
| Spec | Value |
|---|---|
| Anchor diameter | 3/8" |
| Length | 7" |
| Drill bit size | 3/8" (carbide-tipped, SDS) |
| Minimum embedment (h_ef) | 1-1/2" |
| Minimum hole depth | 2" |
| Install torque | 30 ft-lbf |
| Minimum concrete thickness | 3-1/4" |
| Material | Carbon Steel |
| Finish | Zinc Plated |
| Code listing | ICC-ES ESR-3037 (concrete), seismic categories A-F |
Design Load Values
| Property | Value |
|---|---|
| Steel strength in tension (N_sa) | 5,600 lbf |
| Steel strength in shear (V_sa) | 1,800 lbf |
| Critical edge distance (c_ac) | 6-1/2" |
| Minimum edge distance (c_min) | 6" |
| Minimum spacing (s_min) | 3" |
| Strength reduction factor φ_sa | 0.75 tension / 0.65 shear |
Engineering data disclaimer. Tension and shear values shown are catalog reference values per ACI 318 design methodology (Simpson C-A-2023). They do NOT include code-required reduction factors (φ) or load combinations. For design loads, consult the current ICC-ES ESR-3037 evaluation report and apply project-specific load combinations. Eugene Fastener provides this data as reference; not for use as design loads without independent verification.
Installation Summary
- Drill a 3/8" hole at least 2" deep using a carbide-tipped SDS or hammer drill bit.
- Clean the hole with compressed air or a blow-out pump.
- Insert the anchor through the fixture into the hole until the wedge clip reaches the bottom.
- Tighten the nut to 30 ft-lbf using a calibrated torque wrench.
- Verify the fixture is firmly seated against the concrete with no gap.
Stocked at Eugene Fastener & Supply. Same-day shipping on orders before 2 pm Pacific. Will-call pickup available at our Eugene, Oregon warehouse.
Downloads & Helpful Resources
Printable PDFs:
- STB2 Wedge Anchor Install Guide (PDF) — tools, step-by-step install, common mistakes
- STB2 Engineering Reference Sheet (PDF) — full load tables, edge distance, code listings
- STB2 Material & Finish Selection Guide (PDF) — pick the right finish for your environment
On-site guides:
- Wedge Anchor Selection & Installation Guide
- Pull-Out Strength & Load Tables
- Material & Finish Selection Guide
- How to Remove a Wedge Anchor
- Wedge vs Sleeve Anchor Comparison
- Concrete Anchor Drill Bit & Hole Size Chart
Need volume pricing or submittals? Email sales with diameter, length, finish, and quantity.
| Brand | Simpson Strong-Tie |
| Diameter | 3/8 |
| Length | 7 |
| Drill Size | 3/8 |
| Finish | Zinc Plated |
| Material | Carbon Steel |
| Part Number | SIMSTB2-37700 |