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Home/DIY & Tools/Hardware/Nails, Screws & Fasteners/Screws/Self-tapping Screws
HKDZ 160Pcs 4x12mm Wafer Head Self Drilling Screws, Black Carbon Steel Self Tapping Wood Screws, Modified Truss Head Sheet Metal Screws for Aluminum, Wood, Plastic, Metal Working — image 1
Self-tapping ScrewsHKDZ✓ In stock

HKDZ 160Pcs 4x12mm Wafer Head Self Drilling Screws, Black Carbon Steel Self Tapping Wood Screws, Modified Truss Head Sheet Metal Screws for Aluminum, Wood, Plastic, Metal Working

★★★★★
$26.99

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About this item
  • Premium Carbon Steel Material：Our self drilling screws are made of high-quality black carbon steel, featuring high hardness, good toughness, rust resistance and durable service life, not easy to break or deform during installation.
  • Self Drilling & Self Tapping Design：With sharp drill point and deep thread, these wafer head screws can quickly drill and tap holes without pre-drilling, saving time and effort, providing firm and stable fastening.
  • Modified Truss Wafer Head：The enlarged modified truss wafer head offers larger contact area, effectively prevents screws from sinking into materials, ensures better pull-through resistance and stable installation.
  • Wide Application：These sheet metal screws are perfect for fastening and connecting various materials, including wood, aluminum, plastic, thin metal sheet, widely used in furniture assembly, home repair, construction and DIY projects.
  • Practical 160Pcs Package：Comes with 160 pieces M4×12 self tapping screws, sufficient quantity to meet your daily use, replacement and project needs, ideal for both professional workers and DIY enthusiasts.
Product details
Brand
HKDZ
Manufacturer
HKDZ
Material
Carbon Steel
Colour
Black
Size
M4×12
Part number
02

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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