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

PERFORMANCE DATA

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

1,2,3,5,6

Fastener Description

Minimum Thickness of Steel in Contact with Screw Head

18 Ga. 16 Ga. 14 Ga. 12 Ga. 1/8" 3/16" 1/4" 5/16"

#10-16 Phillips Pan Head 385 480 480 480 480 - - -

#10-16 5/16" Hex Washer Head 415 480 480 480 480 - - -

#10-24 Phillips Wafer Head 610 595

[4]

715

[4]

715

[4]

715

[4]

- - -

#12-14 5/16" Hex Washer Head 430 535 670 735 735 735 - -

#12-14 Phillips Undercut Flat Head 390 535

[4]

680

[4]

795

[4]

795

[4]

795

[4]

- -

#12-24 5/16" Hex Washer Head 430 535 670 735 735 735 735 735

1/4"-14 3/8" Hex Washer Head 520 650 810 1,125 1,125 1,125 - -

1/4"-20 3/8" Hex Washer Head - 650 810 1,125 1,125 1,125 1,125 1,125

5/16"-18 3/8" Hex Washer Head - - - 1,170 1,170 - - -

5/16"-24 3/8" Hex Washer Head - - - 1,325 1,325 1,325 1,325 1,325

1. Allowable (ASD) strengths are based on a safety factor, , determined in accordance with AISI S100-16.

2. Values are based on steel members with with a minimum tensile strength of Fu = 45 ksi.

3. Unless otherwise noted, increasing values for higher steel tensile strength per Note 4 is not allowed.

4. For steel with a minimum tensile strength Fu ≥ 52 ksi, multiply tabulated values by 1.15.

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

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

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

1,2,3,5,6

Fastener Description

Minimum Thickness of Steel in Contact with Screw Head

18 Ga. 16 Ga. 14 Ga. 12 Ga. 1/8" 3/16" 1/4" 5/16"

#10-16 Phillips Pan Head 580 725 780 780 780 - - -

#10-16 5/16" Hex Washer Head 620 780 780 780 780 - - -

#10-24 Phillips Wafer Head 975 955

[4]

1,140

[4]

1,140

[4]

1,140

[4]

- - -

#12-14 5/16" Hex Washer Head 645 805 1,005 1,190 1,190 1,190 - -

#12-14 Phillips Undercut Flat Head 625 860

[4]

1,090

[4]

1,275

[4]

1,275

[4]

1,275

[4]

- -

#12-24 5/16" Hex Washer Head 645 805 1,005 1,190 1,190 1,190 1,190 1,190

1/4"-14 3/8" Hex Washer Head 780 970 1,215 1,700 1,830 1,830 - -

1/4"-20 3/8" Hex Washer Head - 970 1,215 1,700 1,830 1,830 1,830 1,830

5/16"-18 3/8" Hex Washer Head - - - 1,870 1,870 1,870 - -

5/16"-24 3/8" Hex Washer Head - - - 2,120 2,120 2,120 2,120 2,120

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

, determined in accordance with AISI S100-16.

2. Values are based on steel members with with a minimum tensile strength of Fu = 45 ksi.

3. Unless otherwise noted, increasing values for higher steel tensile strength per Note 4 is not allowed.

4. For steel with a minimum tensile strength Fu ≥ 52 ksi, multiply tabulated values by 1.15.

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

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.

DRIL-FLEX