Self Tapping Screws

Self- tapping screws are a special type of fastener with a rather unique feature. They are able to tap their own threads in materials like plastic, wood, and metal. Self-tapping screws are split into two main categories, Thread-Forming and Thread-Cutting. The screws are similar in the job they do, however, they have two noticeable differences. One of the screws has a flat base, the other has a sharp point.


The Thread-Forming Screw


Before using this type of self-tapping screw, it is recommended that a pilot hole is drilled into the material. As thread-forming screws have a flat nose, it makes the drilling process easier. Thread-forming screws are used when fastening plastic together.


The Thread-Cutting Screw


This style of self-tapping screw does not require any preparation. As it has a pointed tip, it is not necessary to create a pre-drilled pilot hole. Thread-cutting screws are able to pierce a small entry hole while being driven into the material the thread is being created.


Self-tapping screws are traditionally used where an application requires regular maintenance and regular easy access. These screws are useful in situations where products have to be assembled and disassembled, such as access panels or even furniture.


What self-tapping fasteners are available?


When choosing the best self-tapper for your application, there are a few key points to consider. Making sure that you have the right head shape and drive type and thread size are essential. Another factor that determines the end selection would be the material the screws are used with, and the environment and elements they are exposed to.


As a screwdriver is the only real tool used when working with self-tappers. Making sure that you have the screwdriver with the appropriate drive type is essential.


Drive Types


Crosshead


Hexagon Head


Pozi


Torx


Head Shapes


Pan Head


Countersunk


Button Head


Materials and Finishes


Steel


Stainless Steel


Bright Zinc Plated


Clear Passivated



...
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Description Price Length Imperial Length Metric Thread Size Metric Thread Size mm Thread Size UTS Head Shape Drive Type Finish Material Stainless Steel Type
RS Stock No. 483-1202
BrandRS Pro
£3.49
1 Bag of 100
Bag(s)
- 5mm M3 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 522-1454
BrandRS Pro
£7.88
1 Box of 100
Box(es)
3/8in 9.5mm - - No. 8 Pan Pozidriv Plain Stainless Steel A4 316
RS Stock No. 521-614
BrandRS Pro
£6.13
1 Bag of 100
Bag(s)
1/2in 13mm - - No. 8 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 482-8054
BrandRS Pro
£4.10
1 Bag of 100
Bag(s)
- 6mm - - No. 4 Pan - Bright Zinc Plated Steel -
RS Stock No. 483-1218
BrandRS Pro
£3.89
1 Bag of 100
Bag(s)
- 10mm M3 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 546-5654
BrandRS Pro
£2.24
1 Box of 100
Box(es)
3/8in 9.5mm - - No. 6 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 180-695
BrandRS Pro
£8.89
1 Bag of 100
Bag(s)
1in 25mm - - No. 8 Countersunk Pozidriv Plain Stainless Steel A2 304
RS Stock No. 546-5648
BrandRS Pro
£2.22
1 Box of 100
Box(es)
1/4in 6.5mm - - No. 6 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 546-5610
BrandRS Pro
£2.10
1 Box of 100
Box(es)
3/8in 9.5mm - - No. 4 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 482-7764
BrandRS Pro
£3.59
1 Bag of 100
Bag(s)
- 6mm M3 - - Countersunk - Clear Passivated, Zinc Steel -
RS Stock No. 483-1230
BrandRS Pro
£5.44
1 Bag of 100
Bag(s)
- 10mm M4 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 482-8098
BrandRS Pro
£4.23
1 Bag of 100
Bag(s)
- 9mm - - No. 6 Flat - Bright Zinc Plated Steel -
RS Stock No. 521-541
BrandRS Pro
£4.24
1 Bag of 100
Bag(s)
3/8in 9.5mm - - No. 4 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 546-5632
BrandRS Pro
£2.09
1 Box of 100
Box(es)
1/2in 13mm - - No. 4 Pan Pozidriv Bright Zinc Plated Steel -
RS Stock No. 483-1224
BrandRS Pro
£5.27
1 Bag of 100
Bag(s)
- 6mm M4 - - Pan - Clear Passivated, Zinc Steel -
RS Stock No. 482-7483
BrandRS Pro
£3.36
1 Bag of 100
Bag(s)
- 6mm - - No. 4 Countersunk - Bright Zinc Plated Steel -
RS Stock No. 482-8076
BrandRS Pro
£3.69
1 Bag of 100
Bag(s)
- 9mm - - No. 6 Pan - Bright Zinc Plated Steel -
RS Stock No. 521-579
BrandRS Pro
£5.36
1 Bag of 100
Bag(s)
3/8in 9.5mm - - No. 6 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 521-620
BrandRS Pro
£7.70
1 Bag of 100
Bag(s)
3/4in 19mm - - No. 8 Pan Pozidriv Plain Stainless Steel A2 304
RS Stock No. 521-585
BrandRS Pro
£6.12
1 Bag of 100
Bag(s)
1/2in 13mm - - No. 6 Pan Pozidriv Plain Stainless Steel A2 304
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