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ESR-3223 I Most Widely Accepted and Trusted <br /> TABLE 3—ALLOWABLE TENSILE PULL-OVER LOADS(pounds-force)'23,a,s <br /> NOMINAL NOMINAL DESIGN THICKNESS OF STEEL SHEET <br /> SCREW DIAMETER EFFECTIVE PULL- IN CONTACT WITH SCREW HEAD(inch) <br /> DESIGNATION OVER DIAMETER <br /> (i^) (in.) 0.048 0.060 0.075 0.105 113 <br /> #10-16 HWH 0.190 0,400 557 641 714 — — <br /> #12-14 HWH 0.216 0.415 619 793 893 1092 — <br /> #12-14 UPFH 0.216 0.418 489 620 712 — — <br /> '/4-14 HWH 0.250 0.510 661 952 1069 1515 — <br /> '/4-20 HWH 0.250 0.510 667 910 1070 1568 For SI: 1 inch=25.4 mm,i lbf=4.4 N,1 ksi=6.89 MPa. <br /> 'For tension connections,the lower of the allowable pull-out,pull-over,and fastener tension strength found in Tables 2,3,and 4,respectively, <br /> must be used for design. <br /> 2Nominal strengths are based on laboratory tests. <br /> 3Steel must comply with AISI S100(AISI-NAS for 2006 IBC)and have a minimum tensile strength of 58 ksi. <br /> 4To calculate LRFD values,multiply values in the table by the ASD safety factor of 3.0 and multiply again with the LRFD resistance factor of 0.5. <br /> "The"—"symbol denotes pull-over not tested. <br /> TABLE 4—FASTENER STRENGTH(pounds-force)1•2.3,4 <br /> SCREW NOMINAL FASTENER STRENGTH(TESTED) ALLOWABLE FASTENER STRENGTH,O=3 <br /> DESIGNATION Te ' Shear,P. Tensile P„K2 Shear,P.JQ <br /> #10-16 HWH 2598 1607 866 536 <br /> #12-14 HWH 2O91 1076 697 <br /> #12-14 UPFH 3118 1935 1039 645 <br /> 1/4-14 HWH 4400 2727 1467 909 <br /> '/4-20 HWH 4490 2725 1497 908 <br /> For SI: 1 inch=25.4 mm,1 Ibf=4.4 N. <br /> 'For tension connections,the lower of the allowable pull-out,pull-over,and fastener tension strength found in Tables 2,3,and 4,respectively, <br /> must be used for design. <br /> 2For shear connections,the lower of the allowable fastener shear strength and the allowable shear(bearing)capacity found in Tables 4 and 5, <br /> respectively,must be used for design. <br /> 3Nominal strengths are based on laboratory tests; <br /> 4To calculate LRFD values,multiply nominal values in the table by the LRFD resistance factor of 0.5. <br /> TABLE 5—ALLOWABLE SHEAR(BEARING)CAPACITY(pounds-force)""'-4" <br /> SCREW NOMINAL THICKNESS OF TOP SHEET—THICKNESS OF BOTTOM SHEET(inch-inch)s <br /> DESIGNATION DIAMETER <br /> (in.) 0.048-0.048 0.048-0.075 0.060-0.060 0.075-0.075 '/e-3/,6 0.105-'/4 3/te-'/4 <br /> #10-16 HWH 0.190 331 583 475 — — — — <br /> #12-14 HWH 0.216 372 646 520 646 — — — <br /> #12-14 UPFH 0.216 375 662 542 636 — — — <br /> 1/4-14 HWH 0.250 1 376 622 536 785 841 — — <br /> 1 <br /> /4-20 HWH 0.250 1 356 687 520 760 858 860 For SI: 1 inch=25.4 mm,1 Ibf=4.4 N, 1 ksi=6.89 MPa. <br /> 'For shear connections,the lower of the allowable fastener shear strength and the allowable shear(bearing)capacity found in Tables 4 and 5, <br /> respectively,must be used for design. <br /> 2Nominal strengths are based on laboratory tests. <br /> 3Steel must comply with AISI S100(AISI-NAS for the 2006 IBC)and have a minimum tensile strength of 58 ksi. <br /> 4To calculate LRFD values,multiply values in the table by the ASD safety factor of 3.0 and multiply again with the LRFD resistance factor of 0.5. <br /> sThe'—"symbol denotes shear capacity not tested. <br /> 6The top sheet is in contact with the fastener head,while the bottom sheet is not. <br /> 1 <br /> Load <br /> `—"9e0ring Area toad <br /> wk q 4rso"a <br /> FIGURE 1—TEKS SELECT HEX WASHER HEAD(HWH) FIGURE 2—TEKS SELECT UNDERCUT PHILLIPS FLAT <br /> FASTENER HEAD(UPFH)FASTENER <br /> 14 of 17 <br />