Self-Tapping Screw – Countersunk – Stainless Steel

Stainless steel countersunk self-tapping screws for flush metal fixing in external and corrosion-prone environments.

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 2.9 x 13

Size : 2.9 x 13
Pack Quantity : 200
£1.66 ex VAT(£1.99 inc VAT)

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£1.66 ex VAT(£1.99 inc VAT)
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SKU: 2913CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 2.9 x 19

Size : 2.9 x 19
Pack Quantity : 200
£2.16 ex VAT(£2.59 inc VAT)

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£2.16 ex VAT(£2.59 inc VAT)
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SKU: 2919CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 3.5 x 25

Size : 3.5 x 25
Pack Quantity : 200
£3.49 ex VAT(£4.19 inc VAT)

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£3.49 ex VAT(£4.19 inc VAT)
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SKU: 3525CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 3.9 x 13

Size : 3.9 x 13
Pack Quantity : 200
£2.58 ex VAT(£3.09 inc VAT)

In stock

£2.58 ex VAT(£3.09 inc VAT)
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SKU: 3913CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 3.9 x 25

Size : 3.9 x 25
Pack Quantity : 200
£4.16 ex VAT(£4.99 inc VAT)

In stock

£4.16 ex VAT(£4.99 inc VAT)
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SKU: 3925CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 3.9 x 38

Size : 3.9 x 38
Pack Quantity : 200
£5.91 ex VAT(£7.09 inc VAT)

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£5.91 ex VAT(£7.09 inc VAT)
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SKU: 3938CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 3.9 x 9.5

Size : 3.9 x 9.5
Pack Quantity : 200
£2.49 ex VAT(£2.99 inc VAT)

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£2.49 ex VAT(£2.99 inc VAT)
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SKU: 3995CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 13

Size : 4.2 x 13
Pack Quantity : 200
£2.83 ex VAT(£3.39 inc VAT)

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£2.83 ex VAT(£3.39 inc VAT)
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SKU: 4213CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 16

Size : 4.2 x 16
Pack Quantity : 200
£3.24 ex VAT(£3.89 inc VAT)

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£3.24 ex VAT(£3.89 inc VAT)
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SKU: 4216CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 19

Size : 4.2 x 19
Pack Quantity : 200
£3.83 ex VAT(£4.59 inc VAT)

In stock

£3.83 ex VAT(£4.59 inc VAT)
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SKU: 4219CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 25

Size : 4.2 x 25
Pack Quantity : 200
£4.83 ex VAT(£5.79 inc VAT)

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£4.83 ex VAT(£5.79 inc VAT)
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SKU: 4225CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 32

Size : 4.2 x 32
Pack Quantity : 200
£5.74 ex VAT(£6.89 inc VAT)

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£5.74 ex VAT(£6.89 inc VAT)
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SKU: 4232CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 38

Size : 4.2 x 38
Pack Quantity : 200
£6.74 ex VAT(£8.09 inc VAT)

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£6.74 ex VAT(£8.09 inc VAT)
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SKU: 4238CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.2 x 9.5

Size : 4.2 x 9.5
Pack Quantity : 200
£2.74 ex VAT(£3.29 inc VAT)

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£2.74 ex VAT(£3.29 inc VAT)
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SKU: 4295CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.8 x 19

Size : 4.8 x 19
Pack Quantity : 200
£5.49 ex VAT(£6.59 inc VAT)

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£5.49 ex VAT(£6.59 inc VAT)
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SKU: 4819CCASS

TIMCO Metal Tapping Screws – PZ – Countersunk – Self-Tapping – A2 Stainless Steel – 4.8 x 50

Size : 4.8 x 50
Pack Quantity : 200
£11.66 ex VAT(£13.99 inc VAT)

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£11.66 ex VAT(£13.99 inc VAT)
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SKU: 4850CCASS

About Stainless Steel Countersunk Self-Tapping Screws

Stainless steel countersunk self-tapping screws are designed for metal-to-metal fixing where a neat, low-profile finish is required and exposure to moisture or weathering is likely. Once installed, the countersunk head sits level with the metal surface, making them suitable for visible fixings and components that must sit flat.

These screws are used with a pre-drilled pilot hole, allowing accurate thread formation in metal while reducing stress during installation. This controlled approach is especially important when working with stainless steel, helping improve consistency and reliability on site.

The stainless steel construction provides long-term corrosion resistance without the need for additional coatings, making these fixings suitable for both external work and demanding internal environments.

Typical Applications

Stainless steel countersunk self-tapping screws are commonly used in:

  • External metal panels and fixtures
  • Brackets and plates exposed to damp conditions
  • Electrical enclosures and housings
  • Plant rooms, service areas and coastal locations
  • General construction and maintenance work

Slower driving speeds are recommended when installing stainless steel fixings to reduce heat build-up and help prevent snapping.

Timco Stainless Steel Countersunk Self-Tapping Screws

Our Timco stainless steel countersunk self-tapping screws are selected for dependable trade performance. They’re manufactured for controlled installation, consistent thread formation and a clean, flush finish across repeated use.

Designed for regular site work in harsher conditions, they offer a reliable fixing solution where corrosion resistance and finish matter.

Built for Practical Trade Use

All stainless steel countersunk self-tapping screws in this range are chosen for durability, accuracy and suitability for everyday trade applications. They provide a dependable option for metal fixing where long-term performance is required.

Browse our selection to find the right size and quantity for your application.