Product Technical Guides : US-EN Direct Fastening - Volume 1 Edition 22 | Page 136

3.3.3 EYE LAG CEILING FASTENING HANGER
3.3.3.1 PRODUCT DESCRIPTION
The Hilti eye lag ceiling fastening hanger system is a cost effective and efficient means of supporting direct and indirect hung suspended lay-in panel ceilings . The eye lag ceiling hanger is manufactured from a hardened zinc electroplated mild carbon steel and is designed for attachment of suspended ceiling hanger wires into wood and sheet steel base materials . Each hanger is provided with a 0.177 " pre-punched hole for attachment of ceiling wires . The EL S and EL SD versions are manufactured with steel washers to provide stability during installation into steel base materials .
3.3.3.1
Product description
3.3.3.2
Material specifications
3.3.3.3
Technical data
3.3.3.4
Installation instructions
3.3.3.5
Ordering information
3.3.3.2 MATERIAL SPECIFICATIONS
Fastener designation
Fastener material
Base material
Fastener pating 1
1 / 4 " EL WS Carbon steel Wood 8 μm zinc 1 / 4 " EL S Carbon steel
1 / 4 " EL SD Carbon steel
Steel deck 20 - 25 gauge and wood
Steel deck 16 - 22 gauge
8 μm zinc
8 μm zinc
1 / 4 " EL WS 1 / 4 " EL S
1 Zinc plated per EN / ISO 4042 A3F . Reference Section 2.3.3.1 for more information .
3.3.3.3 TECHNICAL DATA
Allowable loads for Hilti Eye Lag Ceiling Fastening Hanger installed in wood 1 , 3 , 4 , 5
Fastener description
Tension lb ( kN )
Wood 4
45-degree 2 lb ( kN )
1 / 4 " x 3 " EL WS 185 ( 0.82 )
260 ( 1.15 ) 1 / 4 " x 2-3 / 4 " EL S 135 ( 0.60 )
1 The tabulated allowable load values are for the Eye Lag screws only , using a safety factor of 3.0 per ICC-ES AC233 and AC118 . Ceiling wires or other attachments must be investigated in accordance with accepted design criteria .
2 Oblique load applied 45-Degrees from the longitudinal axis of the fastener .
3 Based on minimum 1-1 / 2 " Eye Lag screw penetration into the wood member . For fasteners with integrated washer , fastener should be driven so that washer is in contact with base material .
4 Based on testing in wood with minimum specific gravity of 0.50 . For wood members with different specific gravity measurements , refer to Section 11 of the National Design Specification for Wood Construction .
5 For edge , end distance and spacing requirements , refer to Table 11.5.1E of the National Design Specification for Wood Construction .
1 / 4 " EL SD
Allowable loads for Hilti Eye Lag Ceiling Fastening Hanger installed in sheet steel 1 , 2 , 3
Steel thickness , ga . ( in .)
Fastener description
Tension ( lb ) ( kN )
25 ( 0.021 )
45- degree 4
( lb ) ( kN )
Tension ( lb ) ( kN )
22 ( 0.030 )
45- degree 4
( lb ) ( kN )
Tension ( lb ) ( kN )
20 ( 0.036 )
45- degree 4
( lb ) ( kN )
Tension ( lb ) ( kN )
18 ( 0.048 )
45- degree 4
( lb ) ( kN )
Tension ( lb ) ( kN )
16 ( 0.060 )
45- degree 4 º
( lb ) ( kN )
1 / 4 " x 2-3 / 4 " EL S 60 ( 0.26 ) 70 ( 0.31 ) 110 ( 0.49 ) 150 ( 0.67 ) 150 ( 0.67 ) 230 ( 1.02 ) — — — — 1 / 4 " x 2 " EL SD — — 1 / 4 " x 3 " EL SD — —
75 ( 0.33 ) 100 ( 0.44 ) 115 ( 0.51 ) 140 ( 0.62 ) 165 ( 0.73 ) 225 ( 1.00 ) 215 ( 0.96 ) 235 ( 1.04 )
1 The tabulated allowable load values are for the Eye Lag screws only , using a safety factor of 3.0 per ICC-ES AC233 and AC118 . Ceiling wires or other attachments must be investigated in accordance with accepted design criteria .
2 Values are based on ASTM A653 grade steel having a minimum yield strength of F y
= 33 ksi .
3 Based on minimum three full threads penetration through the sheet steel member . 4 Oblique angle load applied 45-Degrees from the longitudinal axis of the fastener .
Warning : Because of the potential for delayed hydrogen assisted stress corrosion cracking , many hardened steel fasteners are not recommended for use with dissimilar metals or chemically treated wood when moisture may be present or in corrosive environments . For further information , contact Hilti Technical Support at 1-877-749-6337 .
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