Technical Information
Los Angeles City Building Code - ESR 1408
Pro-Twist™ Self-Drilling Screws
Ultimate Value Chart
Diameter Nominal Screw Diameter (Inch) Metal Gauge (LB) Tension (Pull) LBS. PC Shear LBS Metal to Metal Min. Torsional Strength (LB)
6 0.138
25
22
20
18
16
14
12
128
176
263
426
598
911
1156
N/A
449
683
728
1091
N/A
N/A
24
7 0.151
25
22
20
18
16
14
12
99
198
287
446
552
926
1102
N/A
580
829
994
1096
1105
1198
38
8 0.164
25
22
20
18
16
14
12
97
196
285
444
550
924
100
N/A
580
829
994
1096
1332
1337
42
10 0.190
25
22
20
18
16
14
12
N/A
N/A
389
554
727
1050
1216
N/A
602
811
1223
1492
1545
1650
61
12 0.216
25
22
20
18
16
14
12
.156 IN
.187 IN
N/A
N/A
314
472
735
1057
1242
2685
3394
N/A
N/A
698
983
1556
2072
2210
N/A
N/A
92
14 0.237
25
22
20
18
16
14
12
.156 IN
.187 IN
.218 IN
N/A
N/A
300
402
776
1057
1477
3217
3941
4645
N/A
N/A
797
1083
1942
2300
2754
N/A
N/A
N/A
150
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©2005 PrimeSource Building Products, Inc.