Direct Fastening Technical Guide , Edition 24
3.5.1.3.1 Fastener selection
Table 1 — Bar joist and light structural steel frame fasteners ( Reference Section 3.5.2 , 3.5.4 and 3.5.5 )
Base material 1 Fastener type 2 Recommended installation tool X-HSN 24
Bar joist and structural steel 1 / 8 " ( 3 mm ) ≤ t f
≤ 3 / 8 " ( 10 mm ) S-RT5 + M9
DX 9-HSN
SDT 9
Gauge purlin and light bar joist 0.0598 " ( 1.5 mm ) ≤ t f
≤ 1 / 4 " ( 6 mm )
S-MD 12-24x1-5 / 8 M HWH5 SDT 9
1 Steel base material strength ( F u ) shall be in the range of 58 to 91 ksi for base steel thicknesses ( t f
) less than or equal to 5 / 16 ". For base steel thicknesses greater than 5 / 16 ", the tensile strength shall be in the range of 58 to 75 ksi . 2 The X-HSN 24 and Racing Tip Fastening Systems DO NOT fit in deck profiles Type A .
Table 2 — Structural steel frame fasteners ( Reference Section 3.5.3 )
Base material 1 |
Fastener type 2 |
Recommended installation tool |
Structural steel , |
X-ENP-19 L15 |
|
|
hardened structural steel and heavy bar joist
t f
≥ 1 / 4 " ( 6 mm )
|
|
DX 9-ENP |
1 Steel base material tensile strength ( F u
) shall be in a range of 58 to 91 ksi . 2 X-ENP-19 L15 fasteners DO NOT fit is deck profiles Type A and Type F .
Table 3 — Deck-to-deck sidelap fasteners ( Reference Section 3.5.6 ) 2 |
Deck gauges |
Fastener Type 1 |
Recommended installation tool |
|
S-SLC 01 M HWH |
|
18 3 to 26 |
|
SDT 9 |
18 to 22
S-SLC O2 MHWH SDT 9
16 4 to 26
Hilti # 10 HWH Screw SDT 9
1 For use with all types of nestable deck or screwable interlocking deck . 2 Other sidelap connector types are possible with Hilti ’ s power actuated frame fasteners . Please reference the Steel Deck Institute ( SDI ) Diaphragm Design Manual 3rd Edition ( DDM03 ). 3 Use of S-SLC 01 M HWH with 18 gauge steel deck is recommended only for standard tensile strength ( 45 ≤ F u
≤ 65 ksi ) steel deck .
For high tensile strength ( F u
> 65 ksi ) 18 gauge steel deck , use S-SLC 02 M HWH . 4 Use of screws with full drill points recommended for 16 gauge steel deck .
Sealing caps
The SDK2 is an SAE 316 stainless steel sealing cap with a neoprene seal . This is installed over the head of the X-ENP-19 fastener using the SDK2 hand setting tool . The SDK2 sealing cap provides added corrosion protection for exposed exterior steel deck applications in accordance with IBC requirements .
SDK2 Setting Tool
Note : The sealing cap and fastener must be installed correctly to achieve a water-resistant seal . Contact Hilti for details .
SDK2 Sealing Cap
X-ENP-19 L15
h nvs
= 8.2 mm- 9.8 mm
159