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A2 Grade Stainless Steel Countersunk Slotted Head Screws

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Gauge: 3
Product2550100200
3 * 3/8" (2.5 x 10mm)FROM£2.54£3.88£6.53£9.34
3 * 1/2" (2.5 x 12mm)FROM£2.68£4.01£6.80£9.72
3 * 5/8" (2.5 x 16mm)FROM£2.95£4.42£7.33£10.26
3 * 3/4" (2.5 x 20mm)FROM£3.23£4.80£7.99£11.59
3 * 1" (2.5 x 25 mm)SALE£2.83£4.21£7.03£10.20
Gauge: 4
ProductPrice (Unit)50100200
4 * 3/8" (3.0 x 10mm)FROM£2.72 (25)£4.00£6.72£10.55
4 * 1/2" (3.0 x 12mm)FROM£6.01 (200)•••
4 * 1/2" (3.0 x 12mm)FROM£2.15 (25)£3.23£5.47£8.66
4 * 5/8" (3.0 x 16mm)FROM£2.41 (25)£3.61£6.14£9.72
4 * 3/4" (3.0 x 20mm)FROM£2.54 (25)£3.88£6.42£10.26
4 * 1" (3.0 x 25mm)FROM£3.08 (25)£4.55£7.46£11.99
4 * 1.1/4" (3.0 x 30mm)SALE£3.84 (25)£4.56£7.68£12.23
4 * 1.3/8" (3.0 x 35mm)SALE£4.56 (25)£5.41£9.12£14.62
4 * 1.1/2" (3.0 x 40mm)FROM£5.60 (25)£6.53£11.20£17.84
Gauge: 6
Product2550100200
6 * 1/2" (3.5 x 12mm)FROM£2.28£3.47£5.74£8.26
6 * 5/8" (3.5 x 16mm)FROM£2.54£3.74£6.28£8.93
6 * 3/4" (3.5 x 20mm)FROM£3.08£4.68£7.74£11.06
6 * 1" (3.5 x 25mm)FROM£2.68£3.88£6.42£9.20
6 * 1.1/2" (3.5 x 40mm)FROM£3.47£5.06£8.53£12.12
6 * 1.1/4" (3.5 x 30mm)FROM£3.34£4.93£8.12£11.72
6 * 2" (3.5 x 50mm)FROM£3.88£6.42£10.26£13.32
Gauge: 8
Product2550100200
8 * 3/8" (4.0 x 10mm)FROM£2.56£3.86£6.41£9.19
8 * 1/2" (4.0 x 12mm)FROM£2.54£3.88£6.42£9.20
8 * 5/8" (4.0 x 16mm)FROM£3.08£4.55£7.46£10.80
8 * 3/4" (4.0 x 20mm)FROM£3.34£5.06£8.40£11.99
8 * 1" (4.0 x 25mm)FROM£3.23£4.68£7.87£11.32
8 * 1.1/4" (4.0 x 30mm)FROM£3.34£4.93£8.26£11.86
8 * 1.3/8" (4.0 x 35mm)SALE£3.94£5.83£9.74£13.91
8 * 1.1/2" (4.0 x 40mm)FROM£4.14£6.14£10.26£14.64
8 * 1.3/4" (4.0 x 45mm)FROM£4.55£6.66£11.20£15.97
8 * 2" (4.0 x 50mm)FROM£5.21£7.87£13.04£18.79
8 * 2.1/2" (4.0 x 65mm)FROM£5.34£8.93£14.38£18.92
8 * 3" (4.0 x 75mm)FROM£6.14£10.13£16.10£21.04
Gauge: 9
Product
9 * 1.1/4" (4.5 x 30 mm)••••
9 * 1.1/2" (4.5 x 40 mm)••••
Gauge: 10
Product2550100200
10 * 3/4" (5.0 x 20mm)FROM£3.88£5.74£9.34£13.45
10 * 1" (5.0 x 25mm)FROM£4.55£6.80£11.32£16.39
10 * 1.1/4" (5.0 x 30mm)FROM£4.93£7.46£12.40£17.84
10 * 1.1/2" (5.0 x 40mm)FROM£5.06£7.61£12.66£18.25
10 * 1.3/4" (5.0 x 45mm)FROM£6.28£9.47£15.73£22.63
10 * 2" (5.0 x 50mm)FROM£7.46£12.40£19.72£25.69
10 * 2.1/4" (5.0 x 60mm)FROM£8.03£13.36£21.37£27.73
10 * 2.1/2" (5.0 x 65mm)FROM£7.99£13.32£21.31•
10 * 2.3/4" (5.0 x 70 mm)FROM£8.93£14.92£23.96£31.02
10 * 3" (5.0 x 75 mm)SALE£8.60£14.42£23.15£29.99
10 * 3.1/2" (5.0 x 90mm)FROM£10.80£17.99£28.75£37.42
10 * 4" (5.0 x 100mm)FROM£10.13£16.92£27.04£35.15
Gauge: 11
Product2550100200
11 * 1" (5.5 x 25mm)FROM£4.14£6.80£10.93£14.26
11 * 1.1/4" (5.5 x 30mm)FROM£5.29£8.66£13.93£19.63
11 * 1.1/2" (5.5 x 40mm)FROM£5.34£9.06£14.38£18.65
11 * 1.3/4" (5.5 x 45mm)FROM£7.07£11.72£18.65£24.23
11 * 2" (5.5 x 50mm)FROM£7.33£12.25£19.58£25.58
11 * 2.1/2" (5.5 x 65mm)FROM£10.00£16.66£26.63£48.48
11 * 3" (5.5 x 75mm)FROM£11.72£19.58£31.28£54.50
11 * 4" (5.5 x 100mm)SALE£15.70£26.18£41.74£54.38
Gauge: 12
Product2550100200
12 * 3/4" (6.0 x 20mm)FROM£6.14£10.13£16.10£21.04
12 * 1" (6.0 x 25mm)FROM£6.28£10.52£16.79£21.84
12 * 1.1/4" (6.0 x 30mm)FROM£6.66£11.20£17.84£23.30
12 * 1.1/2" (6.0 x 40mm)FROM£8.40£13.85£22.25£28.88
12 * 1.3/4" (6.0 x 45mm)FROM£9.73£17.20£28.51£37.43
12 * 2" (6.0 x 50mm)FROM£11.20£18.65£29.96£38.88
12 * 2.1/2" (6.0 x 65mm)FROM£14.12£23.44£37.55£48.73
12 * 3" (6.0 x 75mm)FROM£16.39£27.29£43.67£56.71
12 * 3.1/2" (6.0 x 90mm)FROM£17.33£28.88£46.33£60.17
Gauge: 18
Product
18 * 2.3/4" (8.0 x 70 mm)••••

What are A2 grade countersunk stainless steel wood screws used for?

These screws are designed for strong, corrosion-resistant wood fixing with a flush finish. They are widely used in:

  • Decking and fencing
  • Outdoor joinery and landscaping
  • Furniture and cabinetry
  • General construction and DIY

The countersunk head allows the screw to sit flush with the surface, creating a neat, professional finish.

What does “A2 stainless steel” mean?

A2 stainless steel (also known as 304 stainless steel) is a corrosion-resistant alloy suitable for:

  • General outdoor use
  • Damp or humid environments
  • Most construction applications

It offers excellent resistance to rust, though not as high as A4 (316) stainless steel screws in marine conditions.

Are A2 stainless steel screws rust-proof?

A2 stainless steel screws are highly resistant to rust, but not completely immune in all conditions. For environments with saltwater or heavy chemical exposure, A4 (316) stainless steel is recommended.

Are A2 stainless steel screws suitable for outdoor use?

Yes, A2 stainless steel screws are ideal for:

  • Garden structures
  • Decking and fencing
  • External timber projects

They provide long-lasting performance without staining the wood.

Are A2 stainless steel screws magnetic?

A2 stainless steel screws are typically non-magnetic or only weakly magnetic, making them suitable for specialist applications.

Can A2 stainless steel screws be used with treated timber?

Yes, A2 stainless steel screws are highly compatible with treated timber, resisting corrosion from preservatives and chemicals.

Are A2 stainless steel screws suitable for structural applications?

They are suitable for light to medium structural use, but always check load requirements and building regulations for critical applications.

Are bulk packs of A2 stainless steel screws available?

Yes, we offer a variety of pack sizes, including bulk options for trade and larger projects. Please contact us if you need larger quantities than are available on our website.

How quickly can I get delivery?

We provide fast UK delivery, including standard and next-day options with free delivery on orders over £35. Full delivery details can be found here.

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