Drywall Screw Coarse Thread

Drywall screw specifically designed for fastening gypsum boards to wood studs. Features a bugle-shaped countersunk head and coarse threads, widely used in interior drywall partitioning, suspended ceilings, and wall cladding.

Material: Carbon steel (1022) or stainless steel (SUS410)
Specifications: diameter: 3.5mm – 6.0mm; length: 20mm – 150mm
Head: Bugle countersunk (Phillips / Torx drive)
Thread: Coarse double-thread
Surface Finishes: Phosphate (black), bright zinc, blue-white zinc (salt spray resistance optional)

Here are some advantages to using Drywall Screw

Bugle head sits flush with board surface, prevents paper tear-out
Coarse threads provide superior holding power in wood, reduce splitting
Sharp point for quick penetration into wood studs
Phosphate coating increases grip and reduces bit slippage

Installation Instructions

Mark screw positions.
No pre-drilling needed – drive directly in.
Drive in straight at steady speed with light pressure.
Drive until head sits flush or slightly below surface – do not over-tighten (prevents paper tear-out).
Clear debris and check firmness.

Drywall Screw Coarse Thread

Specification Standards

Item No.	Screw Thread D	dk	C	d	p	L

DS- 17005	3.9	8.5	0.85	2.8	2.8	25-55
DS- 17006	5	9.4	1.00	3.5	3.1	35-75

Application

Coarse thread dry wall screw isable to through keel fast, so it isusually used for wooden keel.

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