Black Wood Screws & Drywall Screws
Youjia Metals supplies black Phillips countersunk screws for woodworking, furniture, cabinetry, and suitable drywall installation projects. Send the substrate, screw dimensions, thread design, finish, quantity, and packaging requirements for a B2B quotation.
Product Features
The pictured product has a Phillips drive, countersunk flat head, and sharp point. A countersunk head can provide a flush finish when the substrate and installation method are suitable. Thread selection and pilot-hole requirements depend on the material being fastened.
The existing product range lists heat-treated C1022A carbon steel and nominal diameters of 3.5–4.8 mm. Specify the required mechanical properties and verification documents separately; no maximum shear-strength or universal performance guarantee is claimed.
Material, Size, and Finish Requirements
| Material | Heat-treated C1022A carbon steel, subject to order specification |
|---|---|
| Listed Diameter | 3.5–4.8 mm; individual size availability confirmed in quotation |
| Length and Thread | Specify length, thread design, and substrate; dimensions reviewed before supply |
| Head / Drive | Countersunk flat head / Phillips drive as pictured |
| Black Finish | Black phosphate is listed in the existing product introduction. Specify the exact coating and corrosion-protection requirement; color alone does not identify the finish |
| Stock / Lead Time | Current stock, sample schedule, production lead time, and shipment confirmed in the quote |
Applications and Installation
Inquiries can be reviewed for furniture assembly, cabinetry, interior woodworking, and drywall fastening. Wood screws and drywall screws are not automatically interchangeable. Confirm the point, thread, length, head, substrate, and required holding strength for your application.
Use a suitable Phillips bit and controlled installation torque. Overdriving can damage the head or substrate. The correct pilot hole depends on material and screw geometry. Do not treat a general-purpose wood or drywall screw as a structural-rated fastener unless the relevant specification and documents have been confirmed.
A black coating is not a corrosion-proof guarantee. Review outdoor, marine, humid, or chemical service conditions separately and request the required coating specification and test documents.
OEM Supply and Inspection
Custom size, finish, marking, quantity, and packaging requests are reviewed from your drawing or specification. Dimensional checks, drive fit, material verification, mechanical tests, coating tests, and inspection records must be agreed for the order. Certification and test-document availability are confirmed before purchasing rather than promised for every shipment.
Frequently Asked Questions
Which dimensions should I send?
Send nominal diameter, overall length, thread design, head dimensions, drive, material, finish, quantity, and intended substrate. The published 3.5–4.8 mm range does not mean every length or finish combination is stocked.
Can black screws be used outdoors?
Suitability depends on the actual coating, environment, maintenance, and project requirements. Request the required corrosion-protection specification; black appearance alone is not evidence of outdoor suitability.
Can you quote bulk or custom orders?
Yes. Provide a drawing or complete specification, packaging requirements, and delivery destination so supply options and lead time can be reviewed.
Related Fasteners and Inquiry
Explore our product range or send your requirements through the contact page. For direct discussion, contact us on WhatsApp.
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