Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
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<strong>Understanding</strong> <strong>UL</strong>Page 2 – Nails vs. Screws5. Nails and ScrewsNails are specified according to ASTM F547 or ASTMC514. Nails used to attach gypsum board to woodframing shall be cement coated box nails or cementcoated cooler nails unless specified o<strong>the</strong>rwise in <strong>the</strong>specific designs. Screws meeting ASTM C1002 orASTM C954 may be substituted for nails, one forone, when <strong>the</strong> head diameter, length, and spacingequal or exceed <strong>the</strong> requirements for <strong>the</strong> specifiednails.