Product Technical Guides : US-EN Direct Fastening - Volume 1 Edition 22 | Page 65

Direct Fastening Technical Guide , Edition 22

General guidelines for untreated and pressure-treated lumber 1 , 2 , 3

Environment

Indoor - dry : untreated lumber with no moisture exposure

Indoor and exterior - dry : pressure treated lumber with no moisture exposure

Wood type

Fastener

Untreated lumber

Carbon Steel , electro-galvanized ( min . 5 - 13 microns )

SBX / DOT , Zinc borated ACQ , CA-B , CBA-A treated or untreated lumber

Carbon steel , thick mechanical plated ( power driven fasteners > 86 microns )

Washer designation inspection

X-CF washer

X-CP washer denoting ASTM A153 corrosion resistance

1 If the moisture content of Pressure-Treated Lumber is high (> 18 %) or unknown , stainless steel fasteners are recommended . Select appropriate stainless steel grade for your application . 2 Guidelines based on fastener coating / material resistance to environmental corrosion ( commonly called “ rusting "). Evaluate site conditions which may affect these guidelines , such as : corrosive agents other than those listed ; expected service life ; other ( non environmental ) types of corrosion etc . 3 In highly corrosive environments ( such as direct exposure to chlorides with average temperatures above 86 ° F ( 30 ° C )) it is generally recommended that a Highly Corrosive Resistant ( HCR )

Fastener be used such as Hilti HAS HCR Adhesive Anchor Rods . Contact Hilti Technical Support for more information .

3.2.10.3 TECHNICAL DATA

Allowable loads for sill plate fasteners installed in minimum f ' c = 2,000 psi normal weight concrete 1 , 2 , 3

Interior shear wall or interior non-shear wall 4 X-CF 72 P8 S23 0.145 ( 3.7 ) 0.905 ( 23 ) 2-7 / 8 ( 72 ) 130 ( 0.58 ) 210 ( 0.93 ) X-CP 72 P8 S23 0.145 ( 3.7 ) 0.905 ( 23 ) 2-7 / 8 ( 72 ) 175 ( 0.78 ) 250 ( 1.11 )

Exterior Shear Wall 5 X-CF 72 P8 S23 0.145 ( 3.7 ) 0.905 ( 23 ) 2-7 / 8 ( 72 ) 130 ( 0.58 ) 165 ( 0.73 )

X-CP 72 P8 S23 0.145 ( 3.7 ) 0.905 ( 23 ) 2-7 / 8 ( 72 ) 150 ( 0.73 ) 105 ( 0.42 )

1 The tabulated allowable load values are for the low-velocity fasteners only , using a safety factor greater than or equal to 5.0 , calculated in accordance with

ICC-ES AC70 . Wood sill plates connected to the substrate must be investigated in accordance with accepted design criteria . 2 Multiple fasteners are recommended for any attachment . 3 Allowable load values are for attachment of nominal 2x lumber with the steel washer bearing on the top surface of the wood . 4 These allowable load values based on testing performed at a minimum 3 " edge distance ( i . e . middle of slab ). 5 These allowable load values based on testing performed at 1-3 / 4 " edge distance .

3.2.10.4 ORDERING INFORMATION

X-CF 72 P8 S23 2-7 / 8 ( 72 ) 0.145 ( 3.7 ) 0.905 ( 23 ) 100 pcs . / box Carbon steel - thick mechanical plated > 86 μm X-CP 72 P8 S23 2-7 / 8 ( 72 ) 0.145 ( 3.7 ) 0.905 ( 23 ) 100 pcs . / box

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