Drywall Screw — Zinc
For damp areas and semi-exposed work
The zinc plated drywall screw has the best rust resistance of the three finishes we stock.
Stocked in Bengaluru · Special sizes made to order · Bulk rates available
Available sizes
Dia × Length (mm)
- 6 x 13
- 6 x 16
- 6 x 19
- 6 x 25
- 6 x 32
- 6 x 38
- 6 x 50
- 6 x 60
- 6 x 75
- 8 x 19
- 8 x 25
- 8 x 32
- 8 x 38
- 8 x 50
6 gauge and 8 gauge, same range as the black and nickel screws. Coarse and fine thread both available.
Available sizes for Drywall Screw — Zinc: 6 x 13, 6 x 16, 6 x 19, 6 x 25, 6 x 32, 6 x 38, 6 x 50, 6 x 60, 6 x 75, 8 x 19, 8 x 25, 8 x 32, 8 x 38, 8 x 50.
What it is used for
Use the zinc screw where the air is damp, or near the coast.
Bathrooms and kitchens
Handles steam and splashing far better than black or nickel.
Basements and utility rooms
Suits spaces that stay damp with little ventilation.
Coastal buildings
Salt in the air destroys black screws quickly. Zinc lasts much longer.
Cement board
The usual choice for backer board in wet areas.
Overview
Zinc protects the steel underneath by corroding first, so it keeps working even if the coating gets scratched. That makes it the right choice for bathrooms, kitchens, basements and anywhere the air stays damp.
It is also the one to use in coastal buildings, where salt in the air will attack a black or nickel screw quickly.
Best rust protection
Zinc corrodes before the steel does, so it keeps protecting even when scratched.
For wet areas
The right screw for bathrooms, kitchens and cement backer board.
Coastal grade
Suits buildings near the sea where other finishes fail quickly.
Same fitting method
Fits exactly like the other two — no change in technique.
Specifications
Standard stock configuration. Non-standard sizes, drives and coatings are made to order — ask us.
| Head | Bugle head, Phillips PH2 drive |
|---|---|
| Thread | Coarse for timber, fine for steel studs |
| Point | Sharp needle point |
| Material | Hardened carbon steel |
| Diameter range | 6 gauge and 8 gauge |
| Length range | 13 mm to 75 mm |
| Substrate | Gypsum board, fibre cement, calcium silicate board |
| Typical spacing | 200–300 mm along studs, 150–200 mm at board edges |
| Packing | 250 / 500 / 1000 piece boxes |
Technical documentation
Exact specifications vary between manufacturers and production batches. Tell us the job and we will confirm the specification before despatch, and send the manufacturer’s datasheet or test certificate for the batch if you need it for a submittal.
Section 1 — Installation
How to fit it
Board fixing is all about depth. Every screw needs to sit just below the surface with the paper face still intact, and doing that a few hundred times in a row is what a depth stop is for.
Drawing made for Modern Fastening Solution. Shown for guidance — check against your own job before ordering.
- 1
Match the thread to the stud
Fine thread for steel studs, coarse for timber. A coarse thread in thin steel will just spin and never tighten.
- 2
Pick the right length
For 12.5 mm board, 25 mm on steel studs and 32 mm on timber. Add the second board thickness if you are double layering.
- 3
Use a depth stop
Set it so the head finishes just below the surface with the paper dimpled but not broken. This turns hundreds of judgement calls into one setting.
- 4
Press the board tight to the stud
Push the board firmly against the framing as you drive. Screwing across a gap is what causes screws to pop through the finish months later.
- 5
Follow the spacing
Roughly 200–300 mm along studs and 150–200 mm at board edges, staying 10–15 mm in from the edge.
Section 2 — Applications
Where it is used
Interior walls and ceilings, in every kind of building.
Drywall partitions
Gypsum board fixed to steel stud or timber partition framing.
False ceilings
Board and tile ceiling systems fixed up to the ceiling grid.
Metal stud framing
Board on light-gauge steel stud framing in commercial fit-out.
Gypsum board installation
Boarding out walls and bulkheads on site.
Wood to drywall applications
Fixing timber battens, trims and carcassing against boarded walls.
Drywall Zinc — questions we get asked
Which drywall screw should I use in a bathroom?
The zinc one. Black will rust and stain through the paint, usually within a year in a room that gets steamy.
Can zinc drywall screws be used outdoors?
For semi-exposed areas like a covered balcony, yes. For fully exposed outdoor work, use hot-dip galvanised or stainless screws instead.
Is zinc worth the extra cost over black?
In a dry bedroom wall, no. In a bathroom, kitchen or coastal building, absolutely — a rust stain bleeding through finished paint costs far more to put right.
Do you stock all three finishes?
Yes, all three in the same size range, so you can use black for dry rooms and zinc for wet areas on the same job.
Request a price for Drywall Zinc
Send us the sizes and quantities and we will come back with a price, usually the same working day. Not sure of the size? Describe the job and we will work it out.
Often ordered with this
Drywall & Wood Screws
Drywall Screw — Black
The standard indoor drywall screw
View specifications
Drywall & Wood Screws
Drywall Screw — Nickel
Bright finish with better rust resistance
View specifications
Drywall & Wood Screws
Chipboard Screws
Pulls timber and board tightly together
View specifications
Self Drilling Screws
SDS CSK Head Screws
Countersunk head that finishes flush
View specificationsTell us what you need
Send us the sizes and quantities, a photo, or just a description of the job. Most quotations go out the same working day.
Monday – Saturday, 9:30 AM – 7:00 PM · Delivery across Bengaluru, Karnataka and all India