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ManualsBrandsDewalt ManualsAir Conditioning Installation Parts1/4" - 20 x 1-1/2" Bi-Flex Hex Washer Head Screws (Box of 1000)

PERFORMANCE DATA

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Ultimate Pull-Over Capacity of Screw Connections in Aluminum, lbf

1,2

Diameter Head Styles

Minimum Thickness of Aluminum in Contact with Screw Head

1/32" 1/16" 1/8"

6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6

#8 - 18 HWH 190 300 425 440 685 965 1,095 1,710 2,395

#8 - 18 PPH 180 285 400 420 655 915 1,050 1,645 2,300

#10 - 16 HWH 225 350 495 505 790 1,105 1,225 1,910 2,680

#10 - 16 PPCKH 245 380 535 540 845 1,185 1,295 2,030 2,840

#10 - 16 PPH 205 325 455 470 735 1,030 1,155 1,805 2,525

#12 - 14 HWH 230 365 510 520 810 1,140 1,255 1,960 2,745

#12 - 24 HWH 230 365 510 520 810 1,140 1,255 1,960 2,745

#12 - 14 PPCKH 245 380 535 540 845 1,185 1,295 2,030 2,840

1/4 - 14 HWH 275 430 605 605 945 1,325 1,425 2,225 3,115

1/4 - 20 HWH 275 430 605 605 945 1,325 1,425 2,225 3,115

1. Ultimate strengths are based on calculations in accordance with the Aluminum Design Manual, AA ADM1-2015.

2. Ultimate load capacities must be reduced by a minimum safety factor to determine allowable loads (ASD) or by a load resistance factor to determine strength design capacities (LRFD).

Allowable (ASD) Pull-Over Capacity of Screw Connections in Aluminum, lbf

1,2,3,4,5,6

Diameter Head Styles

Minimum Thickness of Aluminum in Contact with Screw Head

1/32" 1/16" 1/8"

6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6

#8 - 18 HWH 65 100 140 145 230 320 365 570 800

#8 - 18 PPH 60 95 135 140 220 305 350 550 770

#10 - 16 HWH 75 120 165 170 265 370 410 640 895

#10 - 16 PPCKH 80 130 180 180 285 395 435 675 945

#10 - 16 PPH 70 110 150 155 245 345 385 600 840

#12 - 14 HWH 80 120 170 175 270 380 420 655 915

#12 - 24 HWH 80 120 170 175 270 380 420 655 915

#12 - 14 PPCKH 80 130 180 180 285 395 435 675 945

1/4 - 14 HWH 90 145 200 200 315 440 475 740 1,040

1/4 - 20 HWH 90 145 200 200 315 440 475 740 1,040

1. Allowable strengths are based on a safety factor,  = 3.00, determined in accordance with the Aluminum Design Manual, AA ADM1-2015.

2. Values are based on aluminum members with the following minimum yield strengths: 6063-T5, F

= 16 ksi; 6063-T6, F

= 25 ksi; 6061-T6, F

= 35 ksi

3. Allowable (ASD) pull-over capacities for other member thicknesses may be determined by interpolating within the table.

4. For aluminum with the following yield strengths: 6063-T5, F

= 21 ksi; 6063-T6, F

= 31 ksi; 6061-T6, F

= 40 ksi; multiply tabulated values by 1.31, 1.24, 1.14 respectively.

5. Tabulated pull over capacities are applicable to aluminum that has been self drilled by the screw fastener and for pre-drilled aluminum members with clearance holes sizes of 0.177, 0.201,

0.228 and 0.266 for #8, #10, #12 and 1/4" screws, respectively.

6. For LRFD tension connections, the lower of the LRFD tension strength, LRFD pull-out strength and LRFD pull-over strength must be used for design.

Design (LRFD) Pull-Over Capacity of Screw Connections in Aluminum, lbf

1,2,3,4,5,6

Diameter Head Styles

Minimum Thickness of Aluminum in Contact with Screw Head

1/32" 1/16" 1/8"

6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6 6063-T5 6063-T6 6061-T6

#8 - 18 HWH 95 150 215 220 345 485 550 855 1,200

#8 - 18 PPH 90 145 200 210 330 460 525 825 1,150

#10 - 16 HWH 115 175 250 255 395 555 615 955 1,340

#10 - 16 PPCKH 125 190 270 270 425 595 650 1,015 1,420

#10 - 16 PPH 105 165 230 235 370 515 580 905 1,265

#12 - 14 HWH 115 185 255 260 405 570 630 980 1,375

#12 - 24 HWH 115 185 255 260 405 570 630 980 1,375

#12 - 14 PPCKH 125 190 270 270 425 595 650 1,015 1,420

1/4 - 14 HWH 140 215 305 305 475 665 715 1,115 1,560

1/4 - 20 HWH 140 215 305 305 475 665 715 1,115 1,560

1. Design (LRFD) strengths are based on a resistance factor,

= 0.50, determined in accordance with the Aluminum Design Manual, AA ADM1-2015.

2. Values are based on aluminum members with the following minimum yield strengths: 6063-T5, F

= 16 ksi; 6063-T6, F

= 25 ksi; 6061-T6, F

= 35 ksi

3. Design (LRFD) pull-over capacities for other member thicknesses may be determined by interpolating within the table.

4. For aluminum with the following yield strengths: 6063-T5, F

= 21 ksi; 6063-T6, F

= 31 ksi; 6061-T6, F

= 40 ksi; multiply tabulated values by 1.31, 1.24, 1.14 respectively.

5. Tabulated pull over capacities are applicable to aluminum that has been self drilled by the screw fastener and for pre-drilled aluminum members with clearance holes sizes of 0.177, 0.201,

0.228 and 0.266 for #8, #10, #12 and 1/4" screws, respectively.

6. For LRFD tension connections, the lower of the LRFD tension strength, LRFD pull-out strength and LRFD pull-over strength must be used for design.

Lap Shear Tension Pull-Out Tension Pull-Over

BI-FLEX