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Slot CountersunkSlot Countersunk
Slot CountersunkPozi Countersunk
Pozi Raised CountersunkSlot Raised Countersunk
Slot Raised CountersunkPozi Raised Countersunk
Pozi Pan HeadSlot Pan Head
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Countersunk Slot Machine Screws - Mild Steel

Mild Steel Zinc Plated Mild Steel Unplated A2 Stainless Brass
Product Image
Countersunk Head With Slot - Mild Steel - Self Colour - ISO 2009 / DIN 963
LengthM3M4M5M6M8M10M12
12mm + ✔ + ✔ + ✔ + ✔ + ✔
16mm + ✔ + ✔ + ✔ + ✔ + ✔ + ✔
18mm + ✔ + ✔
20mm + ✔ + ✔ + ✔ + ✔ ✔ + ✔ + ✔
22mm + ✔
25mm + ✔ + ✔ + ✔ + ✔ + ✔ ✔ + ✔
30mm + ✔ + ✔ + ✔ + ✔ ✔ + ✔ ✔ + ✔ ✔ + ✔
35mm + ✔ + ✔ + ✔ ✔ + ✔ ✔ + ✔ + ✔
40mm + ✔ + ✔ + ✔ + ✔ ✔ + ✔ ✔ + ✔
45mm + ✔ + ✔ + ✔ + ✔ ✔ + ✔ + ✔
50mm + ✔ ✔ + ✔ + ✔ ✔ + ✔ + ✔ + ✔
55mm + ✔ + ✔ ✔ + ✔
60mm ✔ ✔ + ✔ + ✔ ✔ + ✔ ✔ + ✔
65mm ✔ ✔ + ✔
70mm ✔ + ✔ ✔ + ✔ + ✔ ✔ + ✔
80mm + ✔ ✔ + ✔ ✔ + ✔ ✔ + ✔
90mm ✔ ✔ ✔ + ✔ ✔ + ✔
100mm ✔ + ✔ + ✔ ✔ + ✔
105mm ✔

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Mild steel countersunk machine screws with a slotted drive provide a flush, low‑profile finish once installed, making them ideal for applications where a smooth surface is required. The countersunk head seats neatly into a matching chamfer, helping prevent snagging and ensuring components sit flat against each other.

Mild steel is suitable for indoor, dry environments where corrosion exposure is limited. These screws are commonly used in machinery covers, electrical fittings, brackets, fixtures and general fabrication work. Manufactured to recognised standards, they offer consistent thread quality for use with tapped holes or paired nuts.