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Fastening Identification


These hole types are used on various Simpson Strong-Tie connectors.

Also see fastener types and nails.

  roll over images below to see larger image:
 
round holes obround holes hex
Round Holes
Purpose: to fasten a connector.
Fill Requirements: always fill, unless noted otherwise.
  Obround Holes
Purpose: to make fastening a connector in a tight location easier.
Fill Requirements: always fill.
  Hexagonal Holes
Purpose: to fasten a connector to concrete or masonry.
Fill Requirements: always fill when fastening a connector to concrete or masonry.
triangular holes   diamond holes   diamond holes
Triangular Holes
Purpose: to increase a connector's strength or to achieve Max strength.
Fill Requirements: when the Designer specifies Max nailing.
  Diamond Holes
Purpose: to temporarily fasten a connector to make installing it easier.
Fill Requirements: none.
  Pilot Holes
Tooling holes for manufacturing purposes. No fasteners required.

  roll over images below to see larger image
 
Speed Prongs
Used to temporarily position and secure the connector for easier and faster installation.
Positive Angle Nailing (PAN)
Provided when wood splitting may occur, and to speed installation.
Dome Nailing
This feature guides the nail into the joist and header at a 45° angle.
U.S. Patent 5,603,580
 
Double Shear Nailing
The nail is installed into the joist and header, distributing the load through two points on each joist nail for greater strength.
ITS Strong-Grip™
(IUS Similar)
The Strong-Grip™ seat allows the I-joist to "snap" in securely without the need for joist nails.
 
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