Knobs - Lobe - Three Lobe

11 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.
Thread Size Head Diameter (A) Thread Length Colour Hub Diameter (C) Hub Length (D) Indicative
Image
Thread Size
10-24 UNC (4.76mm)

Head Diameter (A)
24.89
mm

(Equiv. 0.98 in.)
Thread Length
8.9
mm

(Equiv. 0.35 in.)
Colour
Black
Hub Diameter (C)
12.95
mm
Hub Length (D)
5.08
mm
Lobe Knobs - 10-24 UNC -4.76mm- 24.89x8.9 mm - Brass
Material: Brass    Recess Diameter (E): 16.00 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF048C-025-3L Lobe Knobs - 10-24 UNC - 4.76mm - 24.89x8.9 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$8.23 AUD
$8.23 AUD
Each
Thread Size Head Diameter (A) Thread Length Colour Indicative
Image
Thread Size
10-24 UNC (4.76mm)

Head Diameter (A)
24.89
mm

(Equiv. 0.98 in.)
Thread Length
8.9
mm

(Equiv. 0.35 in.)
Colour
Black
Lobe Knobs - 10-24 UNC -4.76mm- 24.89x8.9 mm - Brass
Material: Brass    Hub Diameter (C): 12.95 mm    Hub Length (D): 5.08 mm    Recess Diameter (E): 16.00 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF048C-025-3L Lobe Knobs - 10-24 UNC - 4.76mm - 24.89x8.9 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$8.23 AUD
$8.23 AUD
Each
View the product page first if you are unsure.
Thread Size
10-32 UNF (4.76mm)

Head Diameter (A)
29.97
mm

(Equiv. 1.18 in.)
Thread Length
14.0
mm

(Equiv. 0.551 in.)
Colour
Black
Hub Diameter (C)
12.70
mm
Hub Length (D)
3.81
mm
Lobe Knobs - 10-32 UNF -4.76mm- 29.97x14 mm - Zinc Plated Brass
Material: Zinc Plated Brass    Knob Height (B): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF048F-030-3L-SFT Lobe Knobs - 10-32 UNF - 4.76mm - 29.97x14 mm Three Lobe - Zinc Plated Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$3.59 AUD
$3.59 AUD
Each
Thread Size
10-32 UNF (4.76mm)

Head Diameter (A)
29.97
mm

(Equiv. 1.18 in.)
Thread Length
14.0
mm

(Equiv. 0.551 in.)
Colour
Black
Lobe Knobs - 10-32 UNF -4.76mm- 29.97x14 mm - Zinc Plated Brass
Material: Zinc Plated Brass    Hub Diameter (C): 12.70 mm    Hub Length (D): 3.81 mm    Knob Height (B): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF048F-030-3L-SFT Lobe Knobs - 10-32 UNF - 4.76mm - 29.97x14 mm Three Lobe - Zinc Plated Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$3.59 AUD
$3.59 AUD
Each
View the product page first if you are unsure.
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Thread Length
9.5
mm

(Equiv. 0.374 in.)
Colour
Black
Hub Diameter (C)
11.11
mm
Hub Length (D)
11.51
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 19.05x9.5 mm - Brass
Material: Brass    Knob Height (B): 7.14 mm    Recess Diameter (E): 7.52 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-019-3L-BHST Lobe Knobs - 1/4-20 UNC - 6.35mm - 19.05x9.5 mm Three Lobe - Brass
5 Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Thread Length
9.5
mm

(Equiv. 0.374 in.)
Colour
Black
Lobe Knobs - 1/4-20 UNC -6.35mm- 19.05x9.5 mm - Brass
Material: Brass    Hub Diameter (C): 11.11 mm    Hub Length (D): 11.51 mm    Knob Height (B): 7.14 mm    Recess Diameter (E): 7.52 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-019-3L-BHST Lobe Knobs - 1/4-20 UNC - 6.35mm - 19.05x9.5 mm Three Lobe - Brass
5 Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
24.89
mm

(Equiv. 0.98 in.)
Thread Length
10.9
mm

(Equiv. 0.429 in.)
Colour
Black
Hub Diameter (C)
12.95
mm
Hub Length (D)
5.08
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 24.89x10.9 mm - Brass
Material: Brass    Recess Diameter (E): 16.00 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-025-3L-P (5 Pcs) Lobe Knobs - 1/4-20 UNC - 6.35mm - 24.89x10.9 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$36.14 AUD
$36.14 AUD
Per 5
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
24.89
mm

(Equiv. 0.98 in.)
Thread Length
10.9
mm

(Equiv. 0.429 in.)
Colour
Black
Lobe Knobs - 1/4-20 UNC -6.35mm- 24.89x10.9 mm - Brass
Material: Brass    Hub Diameter (C): 12.95 mm    Hub Length (D): 5.08 mm    Recess Diameter (E): 16.00 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-025-3L-P (5 Pcs) Lobe Knobs - 1/4-20 UNC - 6.35mm - 24.89x10.9 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 07, 2025
$36.14 AUD
$36.14 AUD
Per 5
View the product page first if you are unsure.
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 (D)
3.81
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 29.97x25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Knob Height (B): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Male
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
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 (D): 3.81 mm    Knob Height (B): 17.02 mm   
Category: Knobs - Lobe - Three Lobe - Male
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)
31.75
mm

(Equiv. 1.25 in.)
Thread Length
9.5
mm

(Equiv. 0.374 in.)
Colour
Black
Hub Diameter (C)
19.05
mm
Hub Length (D)
11.11
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 31.75x9.5 mm - Brass
Material: Brass    Knob Height (B): 11.11 mm    Recess Diameter (E): 12.95 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-032-3L-BHST Lobe Knobs - 1/4-20 UNC - 6.35mm - 31.75x9.5 mm Three Lobe - Brass
6 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$3.23 AUD
$3.87 AUD $3.23 AUD
Each
Thread Size
1/4-20 UNC (6.35mm)

Head Diameter (A)
31.75
mm

(Equiv. 1.25 in.)
Thread Length
9.5
mm

(Equiv. 0.374 in.)
Colour
Black
Lobe Knobs - 1/4-20 UNC -6.35mm- 31.75x9.5 mm - Brass
Material: Brass    Hub Diameter (C): 19.05 mm    Hub Length (D): 11.11 mm    Knob Height (B): 11.11 mm    Recess Diameter (E): 12.95 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF064C-032-3L-BHST Lobe Knobs - 1/4-20 UNC - 6.35mm - 31.75x9.5 mm Three Lobe - Brass
6 Available Now | Further orders can be expected around Thu, Aug 07, 2025
$3.23 AUD
$3.87 AUD $3.23 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 (D)
7.87
mm
Lobe Knobs - 1/4-20 UNC -6.35mm- 39.88x31.8 mm - Plated Steel
Material: Plated Steel    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D): 7.87 mm    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D)
7.87
mm
Lobe Knobs - 5/16-18 UNC -7.94mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D): 7.87 mm    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D)
8.89
mm
Lobe Knobs - 5/16-18 UNC -7.94mm- 50.04x44.5 mm - Plated Steel
Material: Plated Steel    Knob Height (B): 30.99 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D): 8.89 mm    Knob Height (B): 30.99 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D)
7.87
mm
Lobe Knobs - 3/8-16 UNC -9.53mm- 39.88x38.1 mm - Plated Steel
Material: Plated Steel    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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 (D): 7.87 mm    Knob Height (B): 24.89 mm   
Category: Knobs - Lobe - Three Lobe - Male
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.
Thread Size
M10 (10x1.5mm)

+ 0.10 / - 0.00
Head Diameter (A)
80.0
mm
+ 0.00 / - 0.10
(Equiv. 3.15 in.)
Thread Length
17.0
mm
+ 0.00 / - 0.12
(Equiv. 0.669 in.)
Colour
Black
Hub Diameter (C)
30.00
mm
Hub Length (D)
17.00
mm
Lobe Knobs - M10 -10x1.5mm- 80x17 mm - Brass
Material: Brass    Knob Height (B): 38.0 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF100M-080-3LA (4 Pcs) Lobe Knobs - M10 - 10x1.5mm - 80x17 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 21, 2025
$64.59 AUD
$64.59 AUD
Per 4
Thread Size
M10 (10x1.5mm)

+ 0.10 / - 0.00
Head Diameter (A)
80.0
mm
+ 0.00 / - 0.10
(Equiv. 3.15 in.)
Thread Length
17.0
mm
+ 0.00 / - 0.12
(Equiv. 0.669 in.)
Colour
Black
Lobe Knobs - M10 -10x1.5mm- 80x17 mm - Brass
Material: Brass    Hub Diameter (C): 30.00 mm    Hub Length (D): 17.00 mm    Knob Height (B): 38.0 mm   
Category: Knobs - Lobe - Three Lobe - Female
Part Number: KF100M-080-3LA (4 Pcs) Lobe Knobs - M10 - 10x1.5mm - 80x17 mm Three Lobe - Brass
Out of Stock | Backorder Now | Orders can be expected around Thu, Aug 21, 2025
$64.59 AUD
$64.59 AUD
Per 4
View the product page first if you are unsure.