MATERIAL SPECIFICATIONS
Heat treated carbon steel with a minimum zinc coating of 0.0003 inch ( 8 μm ) thick in accordance with DIN EN ISO 4042 . KH-EZ CRC has mechanically deposited zinc coating with a minimum thickness of 0.0021 inch ( 53 μm ) in accordance with ASTM B695 , Class 55 .
INSTALLATION PARAMETERS
Table 1 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC specifications
Setting |
|
|
information |
Symbol |
Units |
Nominal anchor diameter 1 / 4 3 / 8 1 / 2 5 / 8 3 / 4
Head style and coating |
Hex , P , PM , PL , C head |
Hex , C head |
Hex , C head ( Including CRC ) |
Hex head ( Including CRC ) |
Hex head ( Including CRC ) |
Hex head ( Including CRC ) |
Nominal bit diameter d bit in . 1 / 4 3 / 8 1 / 2 5 / 8 3 / 4
Minimum nominal embedment
Minimum effective embedment h nom in . 1-5 / 8 2-1 / 2 1-5 / 8 2-1 / 8 2-1 / 2 3-1 / 4 2-1 / 4 3 4-1 / 4 3-1 / 4 4 5 4 6-1 / 4 h ef in . 1.18 1.92 1.11 1.54 1.86 2.50 1.50 2.16 3.22 2.39 3.03 3.88 2.92 4.84
Minimum hole depth h o in . 2 2-7 / 8 1-7 / 8 2-3 / 8 2-3 / 4 3-1 / 2 2-5 / 8 3-3 / 8 4-5 / 8 3-5 / 8 4-3 / 8 5-3 / 8 4-3 / 8 6-5 / 8
Minimum fixture hole diameter d h in . 3 / 8 1 / 2 5 / 8 3 / 4 7 / 8
Anchor Length = h nom
+ t l See ordering information
Installation torque concrete 1 T inst ft-lb ( Nm ) |
18 ( 24 ) |
19 ( 26 ) |
40 ( 54 ) |
|
45 ( 61 ) |
85 ( 115 ) |
95 4
( 129 )
|
|
Maximum impact wrench ft-lb
T torque rating concrete 2 impact , max
( Nm )
|
157 ( 213 ) |
157 ( 213 ) |
450 ( 610 ) |
137 ( 186 ) |
450 ( 610 ) |
590 ( 800 ) |
590 ( 800 ) |
Installation torque masonry KH-EZ ( P , PM , PL , C ) 1 T inst ft-lb ( Nm ) |
21 ( 28 ) |
|
22 ( 30 ) |
|
34 ( 46 ) |
38 ( 52 ) |
70 ( 95 ) |
Installation torque masonry for KH-EZ CRC 1 T inst ft-lb ( Nm ) |
|
|
20 ( 27 ) |
|
25 ( 34 ) |
35 ( 48 ) |
45 ( 61 ) |
|
Maximum impact wrench torque rating masonry for KH-EZ ( P , PM , PL , C ) 2 , 3 T impact , max
ft-lb ( Nm )
|
114 ( 155 ) |
114 ( 155 ) |
332 ( 450 ) |
332 ( 450 ) |
332 ( 450 ) |
332 ( 450 ) |
Maximum impact wrench torque rating masonry for KH-EZ CRC 2 , 3 T impact , max ft-lb ( Nm ) |
|
|
100 ( 136 ) |
100 ( 136 ) |
332 ( 450 ) |
332 ( 450 ) |
Wrench size in . 7 / 16 9 / 16 3 / 4 15 / 16 1-1 / 8 1 T inst is the maximum installation torque that may be applied with a torque wrench . 2 Because of variability in measurement procedures , the published torque of an impact tool may not correlate properly with the above setting torques .
Over torquing can damage the base material , anchor and / or reduce its holding capacity . 3 For more information on KH-EZ installed in masonry , see ESR-3056 and Design Information for Masonry in this section . 4 Maximum installation torque in concrete for 3 / 4-in diameter KH-EZ CRC is 95 ft-lbs . ( 115 Nm ).
Figure 1 — Hilti KH-EZ specifications
DESIGN INFORMATION IN CONCRETE PER ACI 318
ACI 318 Chapter 17 design The load values contained in this section are Hilti Simplified Design Tables . The load tables in this section were developed using the Strength Design parameters and variables of ESR-3027 and the equations within ACI 318 Chapter 17 . For a detailed explanation of the Hilti Simplified Design Tables , refer to section 3.1.8 of the North American Product Technical Guide , Volume 2 : Anchor Fastening Technical Guide , Edition 22 ( PTG Ed . 21 ). Data tables from ESR-3027 are not contained in this section , but can be found at www . icc-es . org or at www . hilti . com .
332 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.6 KWIK HUS-EZ SCREW ANCHOR Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458