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Fastening Identification Guide

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Also see nails.

  These hole types are used on various Simpson connectors.
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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
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.

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ITT Tab Nailing
The nail is hammered in at an angle of approximately 45° to prevent the wood from splitting. 		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.
 
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ITS Strong-Grip™
(IUS Similar)
The Strong-Grip™ seat allows the I-joist to "snap" in securely without the need for joist nails.		 Speed Prongs
Used to temporarily position and secure the connector for easier and faster installation. 		Pilot Holes
Tooling holes for manufacturing purpose. No fasteners required.

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