Direct Fastening Technical Guide , Edition 24
3.6.2.1 Product description 3.6.2.2 Material specifications 3.6.2.3 Technical data 3.6.2.4 Installation instructions 3.6.2.5 Ordering information
Listings / Approvals
ICC-ES ( International Code Council ) ESR-2196 with LABC / LARC Supplement ( Steel and Metal Screws ) ESR-3891 with LABC / LARC Supplement ( Interior Finishing / Drywall Screws )
3.6.2 SELF-DRILLING SCREWS
3.6.2.1 PRODUCT DESCRIPTION
Hilti self-drilling screws are designed to drill their own hole in steel base materials up to 1 / 2 " thick . These screws are available in a variety of head styles , thread lengths and drill-flute lengths for screw diameters # 6 through 1 / 4 ". Hilti self-drilling screws meet ASTM C1513 , ASTM C954 and SAE J78 standards , as applicable .
3.6.2.2 MATERIAL SPECIFICATIONS
Product features :
• Hex head for metal-to-metal applications
• Flush head for wood-to-metal applications
• For metal from 0.035 " to 0.500 " thick
• Winged reamers for wood over 1 / 2 " thick
• Stitch screws for light gauge metal-to-metal
• Sealing screws for water resistant fastenings
Material ASTM A510 Grade 1018-1022
ICC-ES ESR-2196 and ESR-3891 together , provide IBC recognition of Hilti ’ s Self-Drilling Screw fasteners for most common applications ( e . g . CFS connections , gypsum to CFS , etc .), including HWH , HHWH , PPH , PPFH , PBH , PWH , PTH , PPCH , TPCH and PFTH head style screws . Wood screws are not covered in the ICC-ESR ' s .
Heat treatment
Case hardened and tempered
• Sizes 8 , 10 and 12 : 0.004 " to 0.009 " case depth
• Size 1 / 4 ": 0.005 " to 0.011 " case depth
Plating Refer to Section 3.6.2.5 for screw coating information .
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 .
3.6.2.3 TECHNICAL DATA
Ultimate tensile strengths – pullout ( tension ), lb ( kN ) 1 , 2 , 3 , 4 , 5 , 6 , 7
Screw designation
Nominal diameter in .
# 6 0.138
# 7 0.151
# 8 0.164
# 10 0.190
# 12 0.216
1 / 4 in . 0.250
Thickness of steel member not in contact with the screw head , ga ( in .) 20 18 16 14 12 10 ( 0.036 ) ( 0.048 ) ( 0.060 ) ( 0.075 ) ( 0.105 ) ( 0.135 ) 190 250 320 395 555 715 ( 0.85 ) ( 1.11 ) ( 1.42 ) ( 1.76 ) ( 2.47 ) ( 3.18 ) 210 275 345 435 605 780 ( 0.93 ) ( 1.22 ) ( 1.53 ) ( 1.93 ) ( 2.69 ) ( 3.47 ) 225 300 375 470 660 845 ( 1.00 ) ( 1.33 ) ( 1.67 ) ( 2.09 ) ( 2.94 ) ( 3.76 ) 260 350 435 545 765 980 ( 1.16 ) ( 1.56 ) ( 1.93 ) ( 2.42 ) ( 3.40 ) ( 4.36 ) 295 395 495 620 870 1120 ( 1.31 ) ( 1.76 ) ( 2.20 ) ( 2.76 ) ( 3.87 ) ( 4.98 ) 345 460 575 715 1000 1290 ( 1.53 ) ( 2.05 ) ( 2.56 ) ( 3.18 ) ( 4.45 ) ( 5.74 )
1 The lower of the ultimate pullout , pullover , and tension fastener strength of screw should be used for design . 2 Load values based upon calculations done in accordance with Section J4 of the AISI S100 . 3 AISI S100 recommends a safety factor of 3.0 be applied for allowable strength design , a Φ factor of 0.5 be applied for LRFD design or a Φ factor of 0.4 be applied for LSD design . 4 ANSI / ASME standard screw diameters were used in the calculations and are listed in the tables . 5 The screw diameters in the table above are available in head styles of pan , hex washer , pancake , flat , wafer and bugle . 6 The load data in the table is based upon sheet steel with F u
= 45 ksi . For F u = 55 ksi steel , multiply values by 1.22 . For F u
= 65 ksi steel , multiply values by 1.44 .
7 Refer to Section 3.6.2.5 to ensure drilling capacities .
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