Drywall Self-Tapping Screw with Reverse Coarse Thread
FLOK supplies self-tapping screws for drywall with reverse coarse thread for fastening gypsum board to a wooden frame: carbon steel, zinc or phosphate coating.
A drywall self-tapping screw with reverse coarse thread is needed when installing gypsum board panels to a wooden frame. The wide-pitch, reverse-direction thread automatically clears the sawdust generated in the working channel as the screw is driven in.
This cleans the channel and makes the fastening more reliable thanks to better grip of the screw in the frame’s wood. The screw head is cone-shaped, countersunk, with a recess configuration that fits a Phillips-type screwdriver or a matching driver bit.
The sharp point ensures precise penetration into the gypsum board sheet. After driving in, the head sinks flush with the drywall surface and is covered with putty. The fastener is made of carbon steel; corrosion protection is galvanic zinc plating or phosphating. Depending on the coating type, the self-tapping screws come in silver, black, or yellow color.
| L (mm) | d |
|---|---|
| 3.8 | |
| 28 | |
| 35 | |
| 41 |
See also
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Drywall Self-Tapping Screw with Fine Thread and Drill Bit Tip
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Coarse-thread Drywall Screw
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Flygel Self-Tapping Screw with Drill Bit
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Universal Self-Tapping Screw with Round Head Torx
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Universal self-tapping screw with countersunk TORX head
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Wafer-head self-drilling screw for thin sheet metal
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DIN 7982 Countersunk Head Self-Tapping Screw for Thin Metal Sheets and Plastic with Blunt Point, Type F
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DIN 7981 Self-Tapping Screw with Round Head, TORX
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