Steel Deck Fastening Systems
Racing Tip Screw Deck Fastening System 1.4
1.4.1 Product Description
The Hilti Racing Tip fastening system
consists of the Hilti SDT 5 stand-up
screw fastening system and the S-MD
12-24 x 1-5/8 M HWH5 Racing Tip
fasteners, which are available in a
collated version. Torque Screwdriver. Loaded with
up to 50 frame fasteners or sidelap
connectors this system can perform
frame attachment and sidelap
connections. Contact Hilti for specific
tool recommendations.
The SDT 5 Decking system can be
powered with either the ST 1800
Adjustable Torque Screwdriver or the
ST 1800-A18 Cordless Adjustable Hilti S-MD 12-24 x 1-5/8 M HWH5
Racing Tip steel deck fasteners
comply with ANSI/SDI RD1.0, C1.0
and NC1.0 standards.
1.4.1 Product Description
1.4.2 Material Specifications
1.4.3 Technical Data
1.4.4 Ordering Information
1.4.2 Material Specifications
Fastener
designation
S-MD 12-24 x 1-5/8 M HWH5
Fastener
material
Carbon Steel
Fastener
plating
5 µm Zinc 1
1 ASTM B633, SC 1, Type III. Reference Section 2.3.3.1 of Hilti North American Product
Technical Guide Volume 1: Direct Fastening for more information.
S-MD 12-24 x 1-5/8 M HWH5
Approvals/Listings
1.4.3 Technical Data
Allowable pullout loads for attachments to steel base material lb (kN) 1,3,4
Base material thickness in. (Gauge)
1/4 2
1/8 2
0.0598 (16) 0.0747 (14) 0.1046 (12)
S-MD 12-24 x 1-5/8 M HWH5 215 (0.96) 265 (1.18) 370 (1.65) 505 (2.25) 505 (2.25)
Fastener
1 Unless otherwise noted, allowable load values based upon calculations done in accordance with
Section E4 of AISI S100 with F u = 58 ksi.
2 Allowable load values based upon testing performed in ASTM A36 (F u ≥ 58 ksi) plate steel.
3 Allowable tension pullout load values must be compared with allowable tension pullover load values.
Use lesser value.
4 Allowable load values based on safety factor of 3.0 per AISI S100.
FM (Factory Mutual)
For attaching Class 1 Steel Roof Decks
with 1-60, 1-75 and 1-90 wind uplift
ratings
UL (Underwriters Laboratories)
Fasteners for attaching steel roof deck
(uplift and fire classification)
Allowable tension pullover and shear bearing loads for attaching steel deck 1,2,3,4
Steel deck gauge (in.)
Fastener
S-MD 12-24 x 1-5/8 M HWH5
1
2
3
4
5
16 (0.0598)
Tension
lb (kN)
18 (0.0474)
Shear
lb (kN)
5
Tension
lb (kN)
20 (0.0358)
Shear
lb (kN)
5
Tension
lb (kN)
Shear
lb (kN)
22 (0.0295)
Tension
lb (kN)
Shear
lb (kN)
24 (0.0239)
Tension
lb (kN)
Shear
lb (kN)
560 620 445 620 335 555 275 400 225 260
(2.49) (2.76) (1.98) (2.76) (1.49) (2.47) (1.22) (1.78) (1.00) (1.16)
Allowable load values are based upon a safety factor of 3.0 per AISI S100.
Allowable load values based upon ASTM A1008, or minimum ASTM A653 SQ33 steel deck.
Allowable tension pullover load values based upon calculations done in accordance with Section E4 of AISI S100 with F u = 45 ksi.
Allowable tension pullover load values must be compared with allowable tension pullout load values. Use lesser value.
Allowable load value limited by screw fastener shear strength.
Hilti, Inc. (US) 1-800-879-8000 | www.us.hilti.com I en español 1-800-879-5000 I Hilti (Canada) Corp. 1-800-363-4458 I www.hilti.ca I PTG Decking Supplement 2014 45