Knobs - Lobe - Three Lobe - Male

5 Products in this selection
Combined category including various types of Lobe Knobs.

Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.

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 - Lobe - Three Lobe - Male.
Thread Size Head Diameter (A) Thread Length Colour Hub Diameter (C) Hub Length Resting (D) Indicative
Image
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
29.97
mm

(Equiv. 1.18 in.)
Thread Length
25.4
mm

(Equiv. 1 in.)
Colour
Black
Hub Diameter (C)
12.70
mm
Hub Length Resting (D)
3.81
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 29.97x25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hub Length Working (D): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Male - Soft Touch
Part Number: KM064C-030-3LL-SFT Lobe Knobs - 1/4-20 UNC - 6.35mm - 29.97x25.4 mm Three Lobe - Zinc Plated Steel
30 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$4.59 AUD
$5.51 AUD $4.59 AUD
Each
Thread Size Head Diameter (A) Thread Length Colour Indicative
Image
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
29.97
mm

(Equiv. 1.18 in.)
Thread Length
25.4
mm

(Equiv. 1 in.)
Colour
Black
Lobe Knobs - 1/4-20 UNC -6.35mm- 29.97x25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hub Diameter (C): 12.70 mm    Hub Length Resting (D): 3.81 mm    Hub Length Working (D): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Male - Soft Touch
Part Number: KM064C-030-3LL-SFT Lobe Knobs - 1/4-20 UNC - 6.35mm - 29.97x25.4 mm Three Lobe - Zinc Plated Steel
30 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$4.59 AUD
$5.51 AUD $4.59 AUD
Each
View the product page first if you are unsure.
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
31.8
mm

(Equiv. 1.252 in.)
Colour
Black
Hub Diameter (C)
16.00
mm
Hub Length Resting (D)
7.87
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 39.88x31.8 mm - Plated Steel
Material: Plated Steel    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM064C-040-3L Lobe Knobs - 1/4-20 UNC - 6.35mm - 39.88x31.8 mm Three Lobe - Plated Steel
10 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
31.8
mm

(Equiv. 1.252 in.)
Colour
Black
Lobe Knobs - 1/4-20 UNC -6.35mm- 39.88x31.8 mm - Plated Steel
Material: Plated Steel    Hub Diameter (C): 16.00 mm    Hub Length Resting (D): 7.87 mm    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM064C-040-3L Lobe Knobs - 1/4-20 UNC - 6.35mm - 39.88x31.8 mm Three Lobe - Plated Steel
10 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
View the product page first if you are unsure.
Thread Size
5/16-18 UNC (7.94mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
38.1
mm

(Equiv. 1.5 in.)
Colour
Black
Hub Diameter (C)
16.00
mm
Hub Length Resting (D)
7.87
mm
Lobe Knobs - 5/16-18 UNC -7.94mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM079C-040-3LL Lobe Knobs - 5/16-18 UNC - 7.94mm - 39.88x38.1 mm Three Lobe - Plated Steel
4 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$7.41 AUD
$7.41 AUD
Each
Thread Size
5/16-18 UNC (7.94mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
38.1
mm

(Equiv. 1.5 in.)
Colour
Black
Lobe Knobs - 5/16-18 UNC -7.94mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Hub Diameter (C): 16.00 mm    Hub Length Resting (D): 7.87 mm    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM079C-040-3LL Lobe Knobs - 5/16-18 UNC - 7.94mm - 39.88x38.1 mm Three Lobe - Plated Steel
4 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$7.41 AUD
$7.41 AUD
Each
View the product page first if you are unsure.
Thread Size
5/16-18 UNC (7.94mm)

Head Diameter (A)
50.04
mm

(Equiv. 1.97 in.)
Thread Length
44.5
mm

(Equiv. 1.752 in.)
Colour
Black
Hub Diameter (C)
21.08
mm
Hub Length Resting (D)
8.89
mm
Lobe Knobs - 5/16-18 UNC -7.94mm- 50.04x44.5 mm - Plated Steel
Material: Plated Steel    Hub Length Working (D): 30.99 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM079C-050-3LL Lobe Knobs - 5/16-18 UNC - 7.94mm - 50.04x44.5 mm Three Lobe - Plated Steel
7 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$6.50 AUD
$7.80 AUD $6.50 AUD
Each
Thread Size
5/16-18 UNC (7.94mm)

Head Diameter (A)
50.04
mm

(Equiv. 1.97 in.)
Thread Length
44.5
mm

(Equiv. 1.752 in.)
Colour
Black
Lobe Knobs - 5/16-18 UNC -7.94mm- 50.04x44.5 mm - Plated Steel
Material: Plated Steel    Hub Diameter (C): 21.08 mm    Hub Length Resting (D): 8.89 mm    Hub Length Working (D): 30.99 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM079C-050-3LL Lobe Knobs - 5/16-18 UNC - 7.94mm - 50.04x44.5 mm Three Lobe - Plated Steel
7 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$6.50 AUD
$7.80 AUD $6.50 AUD
Each
View the product page first if you are unsure.
Thread Size
3/8-16 UNC (9.53mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
38.1
mm

(Equiv. 1.5 in.)
Colour
Black
Hub Diameter (C)
16.00
mm
Hub Length Resting (D)
7.87
mm
Lobe Knobs - 3/8-16 UNC -9.53mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM095C-040-3LL Lobe Knobs - 3/8-16 UNC - 9.53mm - 39.88x38.1 mm Three Lobe - Plated Steel
1 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$8.14 AUD
$8.14 AUD
Each
Thread Size
3/8-16 UNC (9.53mm)

Head Diameter (A)
39.88
mm

(Equiv. 1.57 in.)
Thread Length
38.1
mm

(Equiv. 1.5 in.)
Colour
Black
Lobe Knobs - 3/8-16 UNC -9.53mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Hub Diameter (C): 16.00 mm    Hub Length Resting (D): 7.87 mm    Hub Length Working (D): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male - Standard
Part Number: KM095C-040-3LL Lobe Knobs - 3/8-16 UNC - 9.53mm - 39.88x38.1 mm Three Lobe - Plated Steel
1 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$8.14 AUD
$8.14 AUD
Each
View the product page first if you are unsure.