4x20mm (M4) Countersunk Flat Head Machine Screws, 8pkg, Koswork
CAT.184 · DWG KOSFS420 SCALE 1:1 PHOTO4x20mm (M4) Countersunk Flat Head Machine Screws, 8pkg, Koswork
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Koswork

4x20mm (M4) Countersunk Flat Head Machine Screws, 8pkg, Koswork

KOSFS420
$6.70incl. GST · free NZ shipping

      Kosworks - KOSFS420 (M4) 4mm x 20mm long Countersunk Flat Head Machine Screws, 8pkg Made from very high 12.9 grade hardened alloy steel. 12.9 on the ISO strength classification system is one of the strongest commonly available grades which is commonly used in motorsport, machinery, heavy equipment as well as h...

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In stock — 2 on the shelf in Christchurch
1–2 working day dispatch · tracked courier NZ-wide
Checked & test-run by Shane before it ships · 30-day returns

 

 

 

Kosworks - KOSFS420

(M4) 4mm x 20mm long Countersunk Flat Head Machine Screws, 8pkg

Made from very high 12.9 grade hardened alloy steel. 12.9 on the ISO strength classification system is one of the strongest commonly available grades which is commonly used in motorsport, machinery, heavy equipment as well as high stress joints. So a 12.9 bolt can withstand extremely high loads before deforming or breaking. 

Metric hardware is commonly used in many modern RC airplanes, cars, drones, and boats, making these screws a must-have for builders who want the right fit every time. They thread smoothly, hold tight, and offer dependable strength for glow, gas, and electric models.

Made in Taiwan

✓ Included
  • ·See product description for included items.
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    Shane keeps the right packs and receivers on the shelf — ask if you're unsure.

    Assembly notes coming soon — ask Shane if you need a hand before your first flight.

    Dispatch — Orders dispatch within 1–2 working days. Tracked courier NZ-wide; delivery typically 1–3 working days depending on location. Rural delivery adds a day.

    Cost — Free over $150. Flat $9.50 under. Oversized airframes may carry a freight surcharge — shown at checkout.

    Click & collect — Free pickup from 9 North Avon Road, Christchurch. After-hours by appointment — text ahead.

    Returns — 30-day returns on unflown, as-new items. Crash damage isn't covered, but Shane stocks the spares to put it right.

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