SIMPSON STRONG-TIE STB2-37234 STRONG-BOLT 2 ANCHOR 3/8 X 2-3/4

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STRONG-BOLT® 2Wedge Anchor for Cracked and Uncracked Concrete

The Strong-Bolt® 2 wedge anchor is the next-generation solution for cracked and uncracked concrete. Following rigorous testing according to ICC-ES acceptance criteria, the Strong-Bolt 2 anchor received classification as a Category 1 anchor*, the highest attainable anchor category for performance in cracked concrete under static and seismic loading. Available in stainless steel, it is code-listed by ICC-ES under the 2012 IBC requirements for post-installed anchors in cracked and uncracked concrete.

Available in the popular 3/8" diameter, the Strong-Bolt 2 anchor is ideal for MEP applications in cracked concrete, such as hanging pipes, struts, equipment anchorage and other fixtures overhead. The anchor is also effective for lightweight- concrete applications, including concrete-over-metal decking.

The Strong-Bolt 2 wedge anchor in type 316 stainless steel** also offers optimum performance in both cracked and uncracked concrete, meeting 2012 IBC standards for post-installed anchors. This wedge anchor is ideal for corrosive environments, including construction in coastal areas, wastewater and sewage treatment facilities, food processing facilities, pulp and paper mills, and other high-exposure environments.

* the 1" diameter is classified as Category 2

** 1/4" diameter Strong-Bolt 2 are also available in type 304 stainless steel

Strong-Bolt® 2 wedge anchor

·         The proprietary design of the tri-segmented clip has dual undercutting embossments on each segment, which enable secondary or "followup" expansion if a crack forms and intersects the anchor location. This significantly increases the ability of the Strong-Bolt® 2 wedge anchor to carry load if the hole expands as a result of the crack.

Head Stamp

·         The head is stamped with the length identification letter.

FEATURES

    Category 1 anchor classification: The Strong-Bolt 2 anchor received classification as a Category 1 anchor, which is established by performance in reliability tests in accordance with AC193 and ACI355.2 test criteria. Category 1 is the highest attainable anchor category for reliability.

    Tri-segmented clip: Each segment adjusts independently, increasing follow-up expansion should the hole increase in size as a result of a crack.

    Dual embossments on each clip segment: Enables clip to undercut into the concrete thereby increasing follow-up expansion should a crack occur.

    The 3/8" anchor solution approved for 3 ¼" concrete thickness: The Strong-Bolt 2 anchor can be installed in cracked concrete with a minimum thickness of 3 ¼", including concrete-over-metal decking.

    High-strength alloy clip on carbon-steel anchors: This special alloy clip offers improved performance.

    Standard (ANSI) fractional anchor: Fits most fixtures and installs with common drill bit sizes and tools.

    Type 316 stainless-steel clip on stainless steel anchors: In addition to superior corrosion resistance, a stainless-steel clip offers "memory" that contributes to the anchor's performance if the hole increases in size because of a crack.

MATERIAL

·         Carbon-steel stud with special alloy clip; stainless-steel stud with stainless-steel clip.

FINISH

·         Zinc-plated (carbon-steel)

CODE REPORTS

·         ICC-ES ESR-3037 (PDF) (carbon and stainless steel - in cracked and uncracked concrete)

·         IAPMO UES ER-240 (PDF) (carbon steel in CMU)

·         Florida Statewide Product Approval FL15731

·         City of Los Angeles RR 25891 (PDF) (carbon and stainless steel - in cracked and uncracked concrete)

·         City of Los Angeles RR 25936 (PDF) (carbon steel in CMU)

·         Underwriters Laboratories FIle Ex3605

·         Factory Mutual 3043442 and 3047639

TEST CRITERIA

The Strong-Bolt 2 wedge anchor has been tested in accordance with the ICC-ES Acceptance Criteria for Mechanical Anchors in Concrete Elements (AC 193) and ACI 355.2 for the following:

·         Static tension and shear loading in cracked and uncracked concrete

·         Seismic and wind loading in cracked and uncracked concrete

·         Performance in cracked concrete

·         Performance in lightweight concrete over metal deck

Strong-Bolt® 2 Anchor Product Data