ICC ESR-2196 for Self-Drilling and Self-Piercing Screws

ESR-2196
|
Most Widely Accepted and Trusted Page 7 of 10
TABLE 4B—ALLOWABLE SHEAR (BEARING) CAPACITY OF STEEL-TO-STEEL CONNECTIONS USING
HILTI SELF-PIERCING SCREWS, pounds-force
1,3,4,6
Steel F
u
= 45 ksi
Applied Factor of Safety, Ω = 3.0
Screw
Description
Nominal
Diameter
(in.)
Design
thickness of
member in
contact with
screw head,
(in.)
Design thickness of member not in contact with the screw head (in.)
0.015 0.018 0.024 0.030 0.036 0.048
#8-18S 0.164
0.015 73 87 105 107 107 -
0.018 79 90 113 113 113 -
0.024 81 90 149 158 158 -
0.030 82 117 149 186 186 -
0.036 106 114 184 236 287 -
#10-12S 0.190
0.018 - 77 125 152 173 173
0.024 - 77 137 191 220 253
0.030 - 109 167 228 255 309
0.036 - 121 167 228 298 373
0.048 - 121 191 241 298 444
For SI: 1 inch = 25.4 mm, 1 lbf = 4.4 N, 1 ksi = 6.89 MPa.
1
The lower of the allowable shear (bearing) and the allowable fastener shear strength found in Tables 4 and 5, respectively must be used for
design.
2
Load values in Table 4A are based upon calculations in accordance with Section J4 of AISI S100-16. ANSI/ASME standard screw diameters
were used in the calculations and are listed in the tables
3
The allowable bearing capacity for other member thicknesses can be determined by interpolating within the table.
4
To calculate LRFD values, multiply values in table by the ASD safety factor of 3.0 and multiply again with the LRFD Φ factor of 0.5.
5
For F
u
≥ 65 ksi steel, multiply values by 1.44.
6
Load values in Table 4B are based on testing in accordance with AISI S905.
TABLE 5—FASTENER STRENGTH OF SCREW
SCREW
DESCRIPTION
DIAMETE
R
(in.)
NOMINAL FASTENER STRENGTH
DETERMINED BY TESTING
ALLOWABLE FASTENER STRENGTH
4
Tension, P
ts
(lbf)
Shear, P
ss
(lbf)
Tension (P
ts
/Ω)
1
(lbf)
Shear (P
ss
/Ω)
2,3
(lbf)
#7-18 PPH 0.151 1000 890 335 295
#8-18 HWH, PPH 0.164 1000 1170 335 390
#8-18S HWH 0.164 1915 1570 640 525
#10-12 PFTH 0.190 2170 1645 720 550
#10-12S HWH 0.190 1915 1905 640 635
#10-16 HWH, HHWH, PPH,
PPCH
0.190 1370 1215 455 405
#10-18 PTH 0.190 1390 1845 465 615
#12-14 HWH, TPCH 0.216 2325 1880 775 625
#12-24 HWH 0.216 3900 2285 1300 760
1
/
4
-14 HWH 0.250 4580 2440 1525 815
For SI: 1 inch = 25.4 mm, 1 lbf = 4.4 N, 1 ksi = 6.89 MPa.
1
For tension connections, the lower of the allowable pull-out, pullover, and tension fastener strength of screw found in Tables 2, 3, and 5,
respectively must be used for design.
2
For shear connections, the lower of the allowable shear (bearing) and the allowable fastener shear strength found in Tables 4 and 5,
respectively must be used for design.
3
See Section 4.1.3 for fastener spacing and end distance requirements.
4
To calculate LRFD values, multiply the nominal fastener strengths by the LRFD Φ factor of 0.5.