Collection: Knobs - Knurled - Male - Plastic

12 Products in this selection
  • Black ABS Plastic head.
  • Zinc plated steel thread.
Small Parts & Bearings

Additional resources:
Knobs PDF Quick Guide by Thread Size

A more comprehensive listing may be found on the MBA Minibearings main store at Knobs - Knurled - Male - Plastic.
Thread Size Head Diameter (D) Screw Length (L) Colour Style Indicative
Image
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC08 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x8 mm - Polypropylene with Steel Shank
40 units (200 pcs) Available Now | Item Discontinued - Up to 40 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.68 AUD
Regular price $10.20 AUD Sale price $2.68 AUD
Per 5
Thread Size Head Diameter (D) Screw Length (L) Colour Indicative
Image
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC08 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x8 mm - Polypropylene with Steel Shank
40 units (200 pcs) Available Now | Item Discontinued - Up to 40 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.68 AUD
Regular price $10.20 AUD Sale price $2.68 AUD
Per 5
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC10 Knurled Knobs - M4 - 4x0.7mm - 13x10 mm - Polypropylene with Steel Shank
3860 Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $4.23 AUD
Regular price Sale price $4.23 AUD
Each
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC10 Knurled Knobs - M4 - 4x0.7mm - 13x10 mm - Polypropylene with Steel Shank
3860 Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $4.23 AUD
Regular price Sale price $4.23 AUD
Each
View the product page first if you are unsure.
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC12 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x12 mm - Polypropylene with Steel Shank
40 units (200 pcs) Available Now | Item Discontinued - Up to 40 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.77 AUD
Regular price $10.83 AUD Sale price $2.77 AUD
Per 5
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC12 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x12 mm - Polypropylene with Steel Shank
40 units (200 pcs) Available Now | Item Discontinued - Up to 40 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.77 AUD
Regular price $10.83 AUD Sale price $2.77 AUD
Per 5
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
18.0
mm

(0.709 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x18 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC18 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x18 mm - Polypropylene with Steel Shank
38 units (190 pcs) Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $11.05 AUD
Regular price Sale price $11.05 AUD
Per 5
Thread Size
M4 (4x0.7mm)
Head Diameter (D)
13.00
mm

(0.512 in.)
Screw Length (L)
18.0
mm

(0.709 in.)
Colour
Black
Knurled Knobs - M4 -4x0.7mm- 13x18 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM040M-013-KPC18 (5 Pcs) Knurled Knobs - M4 - 4x0.7mm - 13x18 mm - Polypropylene with Steel Shank
38 units (190 pcs) Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $11.05 AUD
Regular price Sale price $11.05 AUD
Per 5
View the product page first if you are unsure.
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC08 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x8 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC08 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x8 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC10 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x10 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC10 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x10 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC12 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x12 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC12 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x12 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
16.0
mm

(0.63 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x16 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC16 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x16 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M5 (5x0.8mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
16.0
mm

(0.63 in.)
Colour
Black
Knurled Knobs - M5 -5x0.8mm- 15x16 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM050M-015-KPC16 (2 Pcs) Knurled Knobs - M5 - 5x0.8mm - 15x16 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC08 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x8 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
8.0
mm

(0.315 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x8 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC08 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x8 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC10 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x10 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
10.0
mm

(0.394 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x10 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC10 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x10 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC12 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x12 mm - Polypropylene with Steel Shank
95 units (190 pcs) Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $9.59 AUD
Regular price Sale price $9.59 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
12.0
mm

(0.472 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x12 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC12 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x12 mm - Polypropylene with Steel Shank
95 units (190 pcs) Available Now | Further orders can be expected around Tue, Aug 26, 2025
Regular price $9.59 AUD
Regular price Sale price $9.59 AUD
Per 2
View the product page first if you are unsure.
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
16.0
mm

(0.63 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x16 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC16 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x16 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2
Thread Size
M6 (6x1mm)
Head Diameter (D)
15.00
mm

(0.591 in.)
Screw Length (L)
16.0
mm

(0.63 in.)
Colour
Black
Knurled Knobs - M6 -6x1mm- 15x16 mm - Polypropylene with Steel Shank
Material: Polypropylene with Steel Shank    Shank Diameter (A): 10.0 mm    Shank Length (H1): 1.0 mm    Width (H): 8.0 mm   
Part Number: KM060M-015-KPC16 (2 Pcs) Knurled Knobs - M6 - 6x1mm - 15x16 mm - Polypropylene with Steel Shank
100 units (200 pcs) Available Now | Item Discontinued - Up to 100 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.50 AUD
Regular price $9.48 AUD Sale price $2.50 AUD
Per 2