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Black phosphate wafer-head screws in a bag of 100

The Wires Zone

The Wires Zone Black Phosphate Phillips Wafer Head Self Tapping/Drilling Screws 1/2" (100/pack) hardware

SKU CH-J3MT-9CQT3

Black phosphate self-tapping screws hold metal sheets with 100 pieces per pack

  • Sold asBag
  • Self-tapping tip drills its own hole
  • Black phosphate coating aids paint and mud adhesion
  • Wafer head sits flush for a clean finish
  • Pack of 100 covers multiple jobs

Black Phosphate Self-Drilling Screws

These black phosphate coated screws feature a Phillips wafer head and self-tapping threads for efficient installation. The coating improves paint and mud adhesion on finished surfaces. Each bag contains 100 pieces measuring 1/2 inch in length.

Ideal for metal framing and sheet metal work

Suited for builders and DIYers needing corrosion-resistant fasteners with a low-profile head. Not intended for heavy structural loads requiring larger diameters or longer lengths. Buyers needing different drive types or thread patterns should consider other options.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 85% of the 2,607 comparable items (median $18.99).

Specifications

No published specifications for this item yet.

Questions about this item

Do I need a Phillips driver bit to install these wafer-head screws?

Yes, the Phillips drive requires a matching bit; the self-tapping tip starts its own hole in metal or wood.

Can I use these 1/2" self-drilling screws alongside older zinc-plated fasteners in the same assembly?

Mixing black-phosphate and zinc coatings is common; both resist corrosion, though the phosphate layer improves paint adhesion.

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