340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5
340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5

340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5

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340pcs Black Modified Truss Head Self Tapping Screws Set – M3 M3.5 M4 M5

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🔩 340‑Piece Modified Truss Head Self-Tappingg Screw Kit – M3 to M5, Black Carbon Steel

A well‑organized workbench with a comprehensive fastener kit, and this 340‑piece self tapping screw set delivers exactly that. Covering the four most requested diameters — M3, M3.5, M4, and M5 — and multiple lengths from 10 mm to 25 mm, it keeps you prepared for sheet metal fabrication, electronics assembly, automotive interior work, furniture repair, and general‑shop tasks without hunting for the right size. Each screw features a wide modified truss head that distributes clamping force and resists pull‑through, a black oxide finish for moderate corrosion protection, and a sharp Phillips drive for smooth installation. Supplied in a sturdy compartment box, the kit saves time, eliminates waste, and brings real organizational fastener storage.

⚙️ Key Features – 340pcs Black Self Tapping Screw Assortment

  • 340‑piece kit covers M3, M3.5, M4, and M5 diameters with eight length variants from 10 mm to 25 mm
  • Modified truss head provides a wider bearing surface than a pan head, preventing pull‑through in thin materials
  • Black oxide finish on carbon steel offers moderate rust resistance and a low‑profile appearance
  • Self‑tapping thread cuts directly into sheet metal, wood, plastics, and composite panels — no pre‑tap needed
  • Phillips drive recess ensures a centered driver and reduces cam‑out during installation
  • Comes sorted in a durable plastic storage box with labeled compartments — easy to carry, use, and restock
  • Ideal for electronics, RC hobbies, appliance covers, automotive trim, furniture, and general workshop fastening

📋 Technical Specifications – 340pcs Self Tapping Screw Set

Size Thread Diameter Length (mm) Head Style Drive Material & Finish Qty
M3 x 10 3.0 mm 10 Modified Truss Phillips Carbon Steel, Black Oxide 60
M3.5 x 12 3.5 mm 12 Modified Truss Phillips Carbon Steel, Black Oxide 60
M3.5 x 16 3.5 mm 16 Modified Truss Phillips Carbon Steel, Black Oxide 50
M3.5 x 25 3.5 mm 25 Modified Truss Phillips Carbon Steel, Black Oxide 30
M4 x 10 4.0 mm 10 Modified Truss Phillips Carbon Steel, Black Oxide 30
M4 x 12 4.0 mm 12 Modified Truss Phillips Carbon Steel, Black Oxide 40
M4 x 16 4.0 mm 16 Modified Truss Phillips Carbon Steel, Black Oxide 30
M5 x 12 5.0 mm 12 Modified Truss Phillare ips Carbon Steel, Black Oxide 40

* Total 340 pieces. All screws packaged in a labeled plastic storage box.

❓ Frequently Asked Questions – 340pcs Self Tapping Screw Assortment

What’s included in the 340‑piece kit?

You get eight common sizes: M3x10 (60 pcs), M3.5x12 (60 pcs), M3.5x16 (50 pcs), M3.5x25 (30 pcs), M4x10 (30 pcs), M4x12 (40 pcs), M4x16 (30 pcs), and M5x12 (40 pcs). All are self-tapping, compartmented plastic boxes for quick access.

Can these self tapping screws be used in wood?

Absolutely. Their sharp, self‑tapping thread bites well into softwoods and hardwoods alike. For dense hardwood, drilling a small pilot hole will make driving easier and prevent snapping.

How does the black oxide finish hold up outdoors?

Black oxide provides mild corrosion resistance for indoor and light outdoor use. It’s not a heavy‑duty outdoor coating like stainless steel or hot‑dip galvanized. For prolonged exposure to rain or humidity, applying a light oil or keeping the fasteners in a dry environment is recommended.

Is a special driver required?

A standard Phillips #1 or #2 bit works perfectly, matching the drive recess of the included screws. Using a bit in good condition helps avoid cam‑out and preserves the head.

Do the screws come with self-tapping washers?

No, this set is screws only. Since they’re self tapping, you typically don’t need nuts — the material itself acts as the mating thread. If your application calls for nuts, standard M3, M3.5, M4, or M5 metric nuts can be paired.