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Anchoring Systems General Instructions for the Installer

Technical and Installation Notes

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

  1. Do not modify Simpson Strong-Tie products as the performance of modified products may be substantially weakened. Simpson Strong-Tie will not warrant or guarantee the performance of such modified products.
  2. Do not alter installation procedures from those set forth in this catalog.
  3. Drill holes for post-installed anchors with carbide-tipped drills meeting the diameter requirements of ANSI B212.15 (shown in the table to the right). A properly sized hole is critical to the performance of post-installed anchors. Rotary-hammered drills with light, high-frequency impact are recommended for drilling holes. When holes are to be drilled in archaic or hollow base materials, the drill should be set to "rotation only" mode.
  4. Failure to apply the recommended installation torque can result in excessive displacement of the anchor under load or premature failure of the anchor. These anchors will lose pre-tension after setting due to pre-load relaxation. See Supplemental Topic M1 for more information.
  5. Do not disturb, make attachments, or apply load to adhesive anchors prior to the full cure of the adhesive.
  6. Use proper safety equipment.
Finished Diameters for Rotary and Rotary-Hammer Carbide-Tipped Concrete Drills per ANSI B212.15
Nominal Drill Bit Diameter (in.) Tolerance Range Minimum (in.) Tolerance Range Maximum (in.)
1/8 0.134 0.140
5/32 0.165 0.171
3/16 0.198 0.206
7/32 0.229 0.237
1/4 0.260 0.268
5/16 0.327 0.335
3/8 0.390 0.398
7/16 0.458 0.468
1/2 0.520 0.530
9/16 0.582 0.592
5/8 0.650 0.660
11/16 0.713 0.723
3/4 0.775 0.787
13/16 0.837 0.849
27/32 0.869 0.881
7/8 0.905 0.917
15/16 0.968 0.980
1 1.030 1.042
1 1/8 1.160 1.175
1 3/16 1.223 1.238
1 1/4 1.285 1.300
1 5/16 1.352 1.367
1 3/8 1.410 1.425
1 7/16 1.472 1.487
1 1/2 1.535 1.550
1 9/16 1.588 1.608
1 5/8 1.655 1.675
1 3/4 1.772 1.792
2 2.008 2.028

Additional Instructions for the Installer for Gas- and Powder-Actuated Fastening

Before operating any Simpson Strong-Tie gas- or powder-actuated tool, you must read and understand the Operator's Manual and be trained by an authorized instructor in the operation of the tool. Simpson Strong-Tie recommends you read and fully understand the safety guidelines of the tool you use. To become a Certified Operator of Simpson Strong-Tie gas- and powder-actuated tools, you must pass a test and receive a certified operator card. Test and Operator's Manual are included with each tool kit. Extra copies may be obtained by contacting Simpson Strong-Tie at (800) 999-5099.

To avoid serious injury or death:

  1. Always make sure that the operators and bystanders wear safety glasses. Hearing and head protection is also recommended.
  2. Always post warning signs within the area when gas- or powder-actuated tools are in use. Signs should state "Tool in Use."
  3. Always store gas- and powder-actuated tools unloaded. Store tools and powder loads in a locked container out of reach of children.
  4. Never place any part of your body over the front muzzle of the tool, even if no fastener is present. The fastener, pin or tool piston can cause serious injury or death in the event of accidental discharge.
  5. Never attempt to bypass or circumvent any of the safety features on a gas- or powder-actuated tool.
  6. Always keep the tool pointed in a safe direction.
  7. Always keep your finger off the trigger.
  8. Always keep the tool unloaded until ready to use.
  9. Always hold the tool perpendicular (90°) to the fastening surface to prevent ricocheting fasteners. Use the spall guard whenever possible.
  10. Never attempt to fasten into thin, brittle or very hard materials such as glass, tile or cast iron as these materials are inappropriate. Conduct a pre-punch test to determine base material adequacy.
  11. Never attempt to fasten into soft material such as drywall or wood. Fastening through soft materials into appropriate base material may be allowed if the application is appropriate.
  12. Never attempt to fasten to a spalled, cracked or uneven surface.
  13. Re-driving of pins is not recommended.