These general instructions for the installer are provided to ensure proper selection and installation of Simpson Strong-Tie Company Inc. products and must be followed carefully. These general instructions are in addition to the specific installation instructions and notes provided for each particular product, all of which should be consulted prior to and during installation of Simpson Strong-Tie Company Inc. products.

1. All specified fasteners must be installed according to the instructions in this catalog. Incorrect fastener quantity, size, type, material, or finish may cause the connection to fail.
2. Holes for 1/2" diameter or greater bolts shall be no more than a maximum of 1/16" larger than the bolt diameter per 2001 American Iron and Steel Institute North American Specification for the Design of Cold-Formed Steel Structural Members, (AISI NAS) Section E3a.
3. Install all specified fasteners before loading the connection.
4. Some hardened fasteners may have premature failure if exposed to moisture. The fasteners are recommended to be used in dry interior applications.
5. Use proper safety equipment.
6. When installing a joist into a connector with a seat, the joist shall bear completely on the seat, if the connector has a seat. The gap between the end of the joist and the connector or header shall not exceed 1/8" per ICC-ES AC 261 and ASTM D1761 test standards.
7. For holdowns, anchor bolt nuts should be finger-tight plus 1/3 to 1/2 turn with a hand wrench. Care should be taken to not over-torque the nut, impact wrenches should not be used. This may preload the holdown.
8. All screws shall be installed in accordance with the screw manufacturer’s recommendations. All screws shall penetrate and protrude through the attached materials a minimum of 3 full exposed threads per AISI Standard for Cold-Formed Steel Framing - General Provisions section D1.3.
9. Welding galvanized steel may produce harmful fumes; follow proper welding procedures and safety precautions. Welding should be in accordance with A.W.S. Standards. Unless otherwise noted Simpson connectors cannot be welded.
10. Temporary lateral support for members may be required during installation.

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