Self-Tapping, Self-Drilling & Thread-Forming Screws

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RS Stock No. 546-5884
Mfr. Part No.DIN7504
BrandRS Pro
£8.57
1 Box of 100
1in 25mm M5.5 5.5mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 483-1202
BrandRS Pro
£3.42
1 Bag of 100
- 5mm M3 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 546-5806
Mfr. Part No.DIN7504
BrandRS Pro
£3.98
1 Box of 100
1/2in 13mm M4.2 4.2mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 546-5913
Mfr. Part No.DIN7504
BrandRS Pro
£11.15
1 Box of 100
1.1/2in 38mm M5.5 5.5mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 522-1454
Mfr. Part No.A4420308 0.75
BrandRS Pro
£7.73
1 Box of 100
3/8in 9.5mm - - No. 8 Pan Pozidriv Plain Stainless Steel A4, 316
RS Stock No. 546-5834
Mfr. Part No.DIN7504
BrandRS Pro
£4.63
1 Box of 100
5/8in 16mm M4.8 4.8mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 546-5604
Mfr. Part No.DIN7981
BrandRS Pro
£2.06
1 Box of 100
1/4in 6.5mm - - No. 4 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 546-5862
Mfr. Part No.DIN7504
BrandRS Pro
£6.66
1 Box of 100
1in 25mm M4.8 4.8mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 483-1252
BrandRS Pro
£6.30
1 Bag of 100
- 12mm M5 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 521-535
BrandRS Pro
£3.53
1 Bag of 100
1/4in 6.5mm - - No. 4 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 521-614
BrandRS Pro
£6.01
1 Bag of 100
1/2in 13mm - - No. 8 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 482-8054
BrandRS Pro
£4.02
1 Bag of 100
- 6mm - - No. 4 Pan - Bright Zinc Plated Steel -
RS Stock No. 546-5878
Mfr. Part No.DIN7504
BrandRS Pro
£7.30
1 Box of 100
3/4in 19mm M5.5 5.5mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 483-1218
BrandRS Pro
£3.81
1 Bag of 100
- 10mm M3 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 546-5979
Mfr. Part No.DIN7504
BrandRS Pro
£6.44
1 Bag of 100
3/4in 19mm - - No. 8 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 546-5957
Mfr. Part No.DIN7504
BrandRS Pro
£6.20
1 Bag of 100
1/2in 13mm - - No. 8 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 546-5812
Mfr. Part No.DIN7504
BrandRS Pro
£4.63
1 Box of 100
3/4in 19mm M4.2 4.2mm - Hex Washer Hex Bright Zinc Plated Steel -
RS Stock No. 546-5654
Mfr. Part No.DIN7981
BrandRS Pro
£2.20
1 Box of 100
3/8in 9.5mm - - No. 6 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 180-695
BrandRS Pro
£8.72
1 Bag of 100
1in 25mm - - No. 8 Countersunk Pozidriv Plain Stainless Steel A2 304
RS Stock No. 546-5648
Mfr. Part No.DIN7981
BrandRS Pro
£2.18
1 Box of 100
1/4in 6.5mm - - No. 6 Pan Pozidriv Bright Zinc Plated Steel -

Self-Tapping, Self-Drilling & Thread-Forming Screws


Self-Tapping and Self-Drilling screws are fixings that tap their own holes in to various materials, primarily sheet metal, wood and plastic. Self-tapping and Self-drilling screws are available with a range of threads like Metric and UTS (Unified Thread Standard). They are also available in different materials and finish dependent on application and environment.

  • Self-Tapping Screws: Tap their own hole into the wood, metal or plastic. Although not essential, a pre-drilled pilot hole is helpful as it ensures that the screw enters the chosen material easily and positions the fixing correctly.
  • Self-Drilling Screws: Work in the same way as a self-tapping screw but has the bonus of drilling the pilot hole at the same time saving time and effort.

  • Self-tapping screws can also be split into further types:

  • Thread forming – displace material
  • Thread cutting – remove material


  • Applications:

  • DIY
  • Carpentry
  • Surgery

  • Something you might not know, is that many dental implants and orthopaedic bone screws are great examples of where self-tapping screws are used in surgery.