High-Strength Drywall Screw (Black Phosphate) M3.5, 20 kg per bag
Drywall screws (also called plasterboard screws or wallboard screws) in
carbon steel Q235 with black phosphate finish and cross recess countersunk
head, 1# recess. The self-tapping thread drives straight into plasterboard
and light-gauge steel studs without pre-drilling.
Size M3.5, lengths 16-80 mm, sold by weight: 20 kg per bag (bulk).
Typical use: plasterboard partition walls and ceilings, light steel keel
fixing, woodwork and interior fit-out.
Full-standard quality: manufactured strictly to standard, genuine full-size
threads and dimensions, no undersized stock.
Why buy from us
- Full-standard (zheng biao) quality on every fastener we supply
- Bulk packing by weight keeps unit cost down for high-volume fit-out work
- Mixed-SKU consolidation: drywall screws, nails, staples and other
fasteners loaded in one shipment - Neutral packing or OEM labelling to your requirements
Ordering information
Please state: length list, number of bags, destination country and port,
packaging and labelling requirements. We will quote FOB / CFR / CIF.





