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Self Drilling

how do I connect round ducts together?

do I need duct tape or self drilling screws

You have a choice. You can slip-fit them together and space (3) self threading sheet metal screws 120 degrees apart. Wrap the joint with self-adhering backed, aluminum foiled tape. Or, you can fit together by using a duct connector. This is usually used for making bends or slight curves. A sturdy joint to secure a duct hanger from. Can secure with screws also but not necessary but wrap with above tape. Duct tape is cheaper and ok but will peel off within a few years.

Find Self Drilling On eBay Below:

Dekfast 12X3 1 4 Self Drilling Phillips Head Screws E Coat
Dekfast 12X3 1 4 Self Drilling Phillips Head Screws E Coat
$7.95
Dekfast 12 X 1 5 8 Self Drilling Phillips Head Screws E Coat Gray
Dekfast 12 X 1 5 8 Self Drilling Phillips Head Screws E Coat Gray
$7.95
50x SnapSkru SP Drywall Anchors Self Drilling 50 Head Screws Home Improvement
50x SnapSkru SP Drywall Anchors Self Drilling 50 Head Screws Home Improvement
$14.30
4x SnapSkru SP Drywall Anchors Self Drilling w 4 Head Screws Home Improvement
4x SnapSkru SP Drywall Anchors Self Drilling w 4 Head Screws Home Improvement
$3.31
10X3 4 HWH 410SS Self Drill Screws 100PCS AA8014 100
10X3 4 HWH 410SS Self Drill Screws 100PCS AA8014 100
$20.00
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Toget
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Toget
$18.72
1 Best Quality Zinc Self Drilling Drywall Anchors with Screws Kit 100 Pieces
1 Best Quality Zinc Self Drilling Drywall Anchors with Screws Kit 100 Pieces
$17.84
10 x 1 1 2 Self Drilling Screws Flat Head Sheet Metal Stainless Steel Qty 50
10 x 1 1 2 Self Drilling Screws Flat Head Sheet Metal Stainless Steel Qty 50
$14.09
Qualihome Plastic Self Drilling Drywall Anchors with Screws Kit 100 Pieces
Qualihome Plastic Self Drilling Drywall Anchors with Screws Kit 100 Pieces
$15.78
Pan Black Head Screw  8 X 1 Quad Drive Self Tap Drilling Screws Cargo RV
Pan Black Head Screw 8 X 1 Quad Drive Self Tap Drilling Screws Cargo RV
$6.85
5000 6 x 1 5 8 Zinc Self Drill Drywall Screws Pro Twist Trim 1 Square Drive
5000 6 x 1 5 8 Zinc Self Drill Drywall Screws Pro Twist Trim 1 Square Drive
$44.97
1 Best Quality Zinc Self Drilling Drywall Anchors with Screws Kit 100
1 Best Quality Zinc Self Drilling Drywall Anchors with Screws Kit 100
$24.40
Logue Expansion Self Drilling Anchors 5 8 Bolt Size 16 Anchors And 6 Wedges
Logue Expansion Self Drilling Anchors 5 8 Bolt Size 16 Anchors And 6 Wedges
$20.00
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Kit 2
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Kit 2
$19.60
Hilitchi 100pcs Premium Quality Zinc Self Drilling Drywall Anchor with Screw Kit
Hilitchi 100pcs Premium Quality Zinc Self Drilling Drywall Anchor with Screw Kit
$18.51
25 LBS 5000 GRABBER DRIVALL Self Drilling Construction Screws 6x1 5 8 35x41mm
25 LBS 5000 GRABBER DRIVALL Self Drilling Construction Screws 6x1 5 8 35x41mm
$73.80
E Z ANCOR KIT 35 ZINC SELF DRILLING DRYWALL ANCHORS WITH 35 PHILLIP SCREWS
E Z ANCOR KIT 35 ZINC SELF DRILLING DRYWALL ANCHORS WITH 35 PHILLIP SCREWS
$9.99
235 Pounds Self Drilling Screws 3 8 Body Length Threaded Phillips Head
235 Pounds Self Drilling Screws 3 8 Body Length Threaded Phillips Head
$94.50
10 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
10 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$13.25
10 x 1 1 4 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
10 x 1 1 4 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
$14.00
Premium Quality Self Drilling Drywall Zinc Anchors With Screws Kit 40 Pieces
Premium Quality Self Drilling Drywall Zinc Anchors With Screws Kit 40 Pieces
$17.63
Best Quality Plastic Self Drilling Drywall Anchors With Screws Kit 100 Pieces
Best Quality Plastic Self Drilling Drywall Anchors With Screws Kit 100 Pieces
$21.90
Shells 50Pack Self Drilling Drywall Anchor Kit with Screws
Shells 50Pack Self Drilling Drywall Anchor Kit with Screws
$10.84
10 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
10 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
$15.25
10 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
10 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$16.50
12 x 3 4 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
12 x 3 4 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$13.50
12 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
12 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$14.50
12 x 1 1 4 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
12 x 1 1 4 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
$17.50
12 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
12 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
$18.50
12 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
12 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$19.50
14 x 3 4 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
14 x 3 4 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$17.00
14 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
14 x 1 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$19.00
14 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
14 x 1 1 2 Pan Head Torx Pin Self Drill Screws W Bit 410 Stainless 25 PK
$23.50
14 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
14 x 2 Pan Head Torx Pin In Self Drill Screws W Bit 410 Stainless 25 PK
$27.50
14x11 23 8Drive HEX WASHER HEAD SELF DRILLING SCREWS ZINC PLATED 2000 Cs
14x11 23 8Drive HEX WASHER HEAD SELF DRILLING SCREWS ZINC PLATED 2000 Cs
$90.00
Plastic Self Drilling Drywall Anchors Hollow Wall Anchors With Screws Kit 20
Plastic Self Drilling Drywall Anchors Hollow Wall Anchors With Screws Kit 20
$22.63
Hard to Find Fastener 014973325732 Cement Board Self Drilling Screws 1 1 4 In
Hard to Find Fastener 014973325732 Cement Board Self Drilling Screws 1 1 4 In
$20.26
Small Mini Zinc Self Drilling Drywall Anchors with Screws Kit 50 Pieces All
Small Mini Zinc Self Drilling Drywall Anchors with Screws Kit 50 Pieces All
$10.59
shells 50pack self drilling drywall anchor kit with screws
shells 50pack self drilling drywall anchor kit with screws
$12.77
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Tog
Self Drilling Drywall Hollow Wall Anchor Kit with Screws 100 Pieces All Tog
$27.70


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