M4 x 20mm

Caterpillar Red

10x PVDF, Socket Head, M4 x 20mm, Bolts, Washers & Nuts - Machine Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £17.49

Was: £17.49

Now: £15.74
Caterpillar Red

20x Black Pan Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

20x Black, Countersunk Cross Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

20x Blue Pan Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

20x Clear Acrylic, Pan Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £10.41

Was: £10.41

Now: £9.37
Caterpillar Red

20x Grey, Countersunk Cross Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

20x Grey, Pan Cross Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers -Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

20x Red Pan Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £13.32

Was: £13.32

Now: £11.99
Caterpillar Red

20x White Pan Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £11.66

Was: £11.66

Now: £10.49
Caterpillar Red

20x White, Countersunk Cross Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £12.49

Was: £12.49

Now: £11.24
Caterpillar Red

50x Black Nylon, Countersunk Cross Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.99

Was: £19.99

Now: £17.99
Caterpillar Red

50x Black Nylon, Socket Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.99

Was: £19.99

Now: £17.99
Caterpillar Red

50x Black, Nylon Plastic, Thumbscrews, M4 x 20mm, knurled, Nuts, Washers & Bolts

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £16.66

Was: £16.66

Now: £14.99
Caterpillar Red

50x Clear Acrylic, Countersunk Cross Head, M4 x 20mm, Plastic, Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £17.49

Was: £17.49

Now: £15.74
Caterpillar Red

50x Clear Acrylic, Countersunk Slotted Head, M4 x 20mm, Plastic, Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £15.82

Was: £15.82

Now: £14.24
Caterpillar Red

50x Clear Acrylic, Pan Slotted Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £14.99

Was: £14.99

Now: £13.49
Caterpillar Red

50x Glass Filled, Pan Head, M4 x 20mm, Plastic Nuts, Bolts & Washers, Super Nylon Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.16

Was: £19.16

Now: £17.24
Caterpillar Red

50x Glass Filled, Reinforced Super Nylon, Hex Head, M4 x 20mm, Plastic Bolts, Nuts & Washers

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.99

Was: £19.99

Now: £17.99
Caterpillar Red

50x Glass Filled, Reinforced Super Nylon, Socket Head, M4 x 20mm, Plastic Bolts, Nuts & Washers

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.16

Was: £19.16

Now: £17.24
Caterpillar Red

50x Grey PVC, Hex Head, M4 x 20mm, Plastic Bolts, Nuts & Washers, UPVC

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.16

Was: £19.16

Now: £17.24
Caterpillar Red

50x Natural, Nylon Plastic, Thumbscrews, M4 x 20mm, knurled, Nuts, Washers & Bolts

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £16.66

Was: £16.66

Now: £14.99
Caterpillar Red

50x Nylon, Pan Cross Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.99

Was: £19.99

Now: £17.99
Caterpillar Red

50x Nylon, Socket Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.99

Was: £19.99

Now: £17.99
Caterpillar Red

50x Polycarbonate, Socket Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £19.16

Was: £19.16

Now: £17.24
Caterpillar Red

50x White, Pan Cross Head, (PP), M4 x 20mm, Plastic Bolts, Nuts & Washers -Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £18.32

Was: £18.32

Now: £16.49
Caterpillar Red

5x PEEK Socket Head, M4 x 20mm, Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £24.99

Was: £24.99

Now: £22.49
Caterpillar Red

5x PEEK, Pan Head Screw M4 x 20mm, Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £21.66

Was: £21.66

Now: £19.49
Caterpillar Red

60x Clear Acrylic, Pan Head, M4 x 20mm, Plastic Bolts, Nuts & Washers - Screws

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £17.49

Was: £17.49

Now: £15.74
Caterpillar Red

60x Clear Plastic Acrylic Thumbscrews, M4 x 20mm, slotted + knurled

MSRP:

Was:

Now: (Inc. VAT)

MSRP: £16.66

Was: £16.66

Now: £14.99

Explore our M4 x 20mm plastic bolts, available in nylon, acrylic, polypropylene, glass-filled nylon, PEEK, PVDF, and more. Choose from socket, pan, hex, countersunk, and thumbscrew heads in multiple colors—perfect for corrosion-resistant, lightweight, and durable fastening in DIY, industrial, and electronics projects.