Guide complet couvrant les types, tailles, styles de filetage et critères de sélection des vis à placoplâtre.
Market Overview: Why Drywall Screw Selection Matters
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What Are Drywall Screws?
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Drywall Screw Types: Head Styles Explained
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| Head Type | Description | Best For |
|---|---|---|
| Bugle Head | Conical underside, sits flush | Standard drywall-to-wood |
| Flat Head | Larger bearing surface | Metal stud applications |
| Modified Bugle | Bugle + trimming ribs | Clean countersinking |
| Pan Head | Sits on surface | Specialty applications |
Thread Types: Fine Thread vs Coarse Thread
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| Thread Type | TPI | Substrate | Designation |
|---|---|---|---|
| Fine Thread | 22-24 TPI | Metal studs | S-type |
| Coarse Thread | 12-14 TPI | Wood studs | W-type |
| Combination | Variable | Both | S/W-type |
Drywall Screw Sizes: Complete Reference
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| Size | Length | Gauge | Application |
|---|---|---|---|
| 1 inch | 1" | #6 | Single layer, metal studs |
| 1-1/4 inch | 1-1/4" | #6 | Single layer, wood studs |
| 1-5/8 inch | 1-5/8" | #6 | Double layer, wood studs |
| 2 inch | 2" | #8 | Triple layer or furring |
| 2-1/2 inch | 2-1/2" | #8-10 | Specialty applications |
| 3 inch | 3" | #10 | Heavy-duty attachment |
Coatings & Corrosion Resistance
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| Coating | Corrosion Resistance | Cost | Best Environment |
|---|---|---|---|
| Black Phosphate | Low | $ | Dry indoor |
| Zinc Plated | Moderate | $$ | Damp indoor |
| Ceramic | High | $$$ | Outdoor/humid |
| Stainless Steel | Maximum | $$$$ | Marine/chemical |
Selection Guide: How to Choose the Right Drywall Screw
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Frequently Asked Questions
See frequently asked questions below.
Can I use drywall screws for wood-to-wood connections?
While possible, drywall screws are not designed for structural wood-to-wood connections. They lack the shear strength of wood screws. Use appropriate wood screws for structural applications.
What is the difference between S-type and W-type drywall screws?
S-type has fine threads for metal studs; W-type has coarse threads for wood studs. Using the wrong type can result in poor holding power or stripping.
How many drywall screws do I need per sheet?
Standard practice is 32 screws per 4×8 sheet on walls (screws every 12" along studs) and 36 screws per sheet on ceilings (screws every 12" along joists, plus perimeter).
Are drywall screws code-compliant?
Yes, when used per manufacturer specifications and local building codes. Always verify with your local authority having jurisdiction (AHJ).
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