M4 x 20mm

Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $23.23

Was: $23.23

Now: $20.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $13.82

Was: $13.82

Now: $12.44
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $17.70

Was: $17.70

Now: $15.92
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $15.48

Was: $15.48

Now: $13.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $16.59

Was: $16.59

Now: $14.93
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $26.55

Was: $26.55

Now: $23.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $26.55

Was: $26.55

Now: $23.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $22.12

Was: $22.12

Now: $19.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $23.23

Was: $23.23

Now: $20.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $21.02

Was: $21.02

Now: $18.92
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $19.91

Was: $19.91

Now: $17.92
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $25.45

Was: $25.45

Now: $22.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $26.55

Was: $26.55

Now: $23.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $25.45

Was: $25.45

Now: $22.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $25.45

Was: $25.45

Now: $22.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $22.12

Was: $22.12

Now: $19.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $26.55

Was: $26.55

Now: $23.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $26.55

Was: $26.55

Now: $23.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $25.45

Was: $25.45

Now: $22.90
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $24.34

Was: $24.34

Now: $21.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $33.19

Was: $33.19

Now: $29.87
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $28.77

Was: $28.77

Now: $25.89
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $23.23

Was: $23.23

Now: $20.91
Caterpillar Red

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

MSRP:

Was:

Now: (Inc. VAT)

MSRP: $22.12

Was: $22.12

Now: $19.91

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.