Drywall Screws: The Ultimate Guide to Types, Sizes & Uses

Introduction

Did you know that choosing the wrong drywall screws can cause screws to break, rust, slip, and even affect the quality of your project? Whether you are a builder, a wholesaler or a user of drywall screws, this article will help you. It covers drywall screw types, sizes, installation instructions, and common mistakes

What Are The Different Types Of Drywall Screws?

Drywall screws [https://www.sinsunfastener.com/index.php?s=Drywall+screws+&cat=490]are the core fasteners for gypsum board installation. Manufacturers can achieve fast installation in actual use by designing different types of threads and Bugle head structures. Depending on the application scenario, the surface of the drywall screws can be treated with anti-rust processes such as black phosphating or galvanizing.

By Thread Type

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Fine Thread fine thread drywall screw [https://www.sinsunfastener.com/drywall-screw-fine-thread-product/]is also called (S-type) screw , the main feature is denser thread and more threads per inch (usually 24-32 TPI), providing stronger bite force.in addition, type s screws typically have a sharp point that can quickly drill through metal without drilling holes.that is best drywall screws for metal studs ,they are suitable for installation of gypsum board with metal studs or framing, such as indoor ceiling.

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Coarse Thread :coarse thread drywall screw [https://www.sinsunfastener.com/black-phosphaded-coarse-thread-drywall-screw-product/] is also called (W-type) screw. It has a deeper and wider thread design: the thread pitch is 2.5-3.5mm (about 8-12 TPI*), which is significantly wider than the fine thread type. The thread depth is 0.3-0.4mm. It has a greater bite force when encountering wood, and the pull-out resistance is increased by 40% vs. fine thread. It is suitable for suspended ceilings and ceilings with wooden frames.

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Hi-Low Thread:Hi-Low Thread Drywall Screw, the main feature is the revolutionary thread design, double thread structure, the depth of the high thread is 0.35-0.45mm, responsible for rapid penetration of materials, the depth of the low thread is 0.2-0.25mm, can remove the waste of materials, 50% faster than conventional coarse thread, suitable for mixed structure buildings: wooden frame + partial metal reinforcement composite wall system.

Image: http://www.sinsunfastener.com/uploads/a918cef2.jpgBy Head Type

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Trim Head:the trim head drywall screw is designed for installation in narrow spaces and projects that require perfect surfaces. The trim head is 30% smaller than the standard bugle head, with a head thickness of 1.2-1.5mm, achieving a nearly invisible installation effect. It is suitable for fine decoration such as solid wood decorative lines, hidden electrical inspection ports, etc.

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Bugle Head: bugle head drywall screw has a unique bugle head (20-22 degrees cone angle) that can automatically sink into the gypsum board surface after installation, avoiding the surface of the gypsum. The head diameter of 8-8.5mm increases the contact area with the gypsum board by 30%, dispersing pressure and preventing cracking. It is most suitable for large-scale gypsum board wall/ceiling system installation. after testing: under the same conditions, it reduces 70% of the subsequent repair work compared with flat head screws

Image: http://www.sinsunfastener.com/uploads/95884a03.jpg

By Surface Treatment Type

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Black Drywall ScrewThe surface of black drywall screw is treated with phosphate to form a black anti-rust coating. The black appearance reduces reflections, making it easier to observe during construction and avoid missing screws. compared with ordinary steel nails, it is more corrosion-resistant and suitable for indoor dry environments, such as indoor living room and bedroom ceilings, temporary partitions, exhibition construction and other short-term projects.

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Galvanized Drywall ScrewThe process of galvanized Drywall Screw is to use electrogalvanizing to cover the surface of the screw with a zinc layer to prevent rust and corrosion. It has a lifespan 2-3 times longer than black Drywall screws, and the price will be a little higher. It is suitable for humid environments, such as kitchens, bathrooms, basements, etc.

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Nickel Plated Drywall Screwnickel plated drywall screw is nickel-plated on the surface, with a silver luster similar to stainless steel screws, super anti-rust characteristics, more chemical corrosion resistance than galvanized, and is the best screws for coastal areas, suitable for extreme environments and high salt fog areas

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Ruspert Drywall Screw Rust coating technology is an advanced surface treatment process. This technology uses high temperature to evenly attach a special layer to the surface of the screw. After chemical reaction, a stable oxide layer is generated. After 24 to 1000 hours of continuous exposure to simulated harsh environments, these screws still have no obvious signs of corrosion. It is suitable for chemical plants or cold chain warehouses, etc.

Image: http://www.sinsunfastener.com/uploads/8a6abf4b.jpg

What You Need to Know About Drywall Screw Lengths and Sizes

* Common Drywall Sizes Chart [https://www.thespruce.com/standard-drywall-sizes-and-thicknesses-1822827]

INCH

MM

Screw Diamete

Length

Screw Diamete

Length

#6

1/2

3.5

13

#6

5/8

3.5

16

#6

3/4

3.5

19

#6

1

3.5

25

#6

1-1/4

3.5

32

#6

1-1/2

3.5

38

#6

1-3/4

3.5

45

#6

2

3.5

50

#6

2-1/2

3.5

63

#6

3

3.5

75

INCH

MM

Screw Diamete

Length

Screw Diamete

Length

#8

1/2

4.2

13

#8

5/8

4.2

16

#8

3/4

4.2

19

#8

1

4.2

25

#8

1-1/4

4.2

32

#8

1-1/2

4.2

38

#8

1-3/4

4.2

45

#8

2

4.2

50

#8

2-1/2

4.2

63

#8

3

4.2

75

#8

4

4.2

100

* Choose The Right Screw Size

#6 vs #8 drywall screws difference

Datas

#63.5mm

#84.2mm

Tensile Strength

Approximately 320KGF

Approximately 480 KGF

Breakage Rate



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