Knobs - Lobe - Three Lobe - Male - Standard

Knobs -> Lobe -> Three Lobe -> Male -> Standard

There are 4 products in the sub-categories of Knobs - Lobe - Three Lobe - Male - Standard. Browse the Knobs - Lobe - Three Lobe - Male - Standard products table.

Category Details

A selection of Standard Male Three Lobe Lobe Knobs. Also see star knobs

  • An expanded range may be available on special order. Please enquire.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Knobs - Lobe - Three Lobe - Male - Standard category on the MBA Minibearings main store.
Thread Size Head Diameter (A) Thread Length Colour Hub Diameter (C) Hub Length (D) Indicative
Image
Lobe Knobs - 1/4-20 UNC - 6.35mm - 39.88x31.8 mm Three Lobe - Plated Steel Knob
Thread Size
1/4-20 UNC (6.35mm)
Head Diameter (A)
39.88
mm
Thread Length
31.8
mm
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   
Part Number: KM064C-040-3L (Each)
8 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Thread Size Head Diameter (A) Thread Length Colour Indicative
Image
Lobe Knobs - 1/4-20 UNC - 6.35mm - 39.88x31.8 mm Three Lobe - Plated Steel Knob
Thread Size
1/4-20 UNC (6.35mm)
Head Diameter (A)
39.88
mm
Thread Length
31.8
mm
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   
Part Number: KM064C-040-3L (Each)
8 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$5.23 AUD
$6.27 AUD $5.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

8 Available Now. Backorder if more than 8.
Lobe Knobs - 5/16-18 UNC - 7.94mm - 39.88x38.1 mm Three Lobe - Plated Steel Knob
Thread Size
5/16-18 UNC (7.94mm)
Head Diameter (A)
39.88
mm
Thread Length
38.1
mm
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   
Part Number: KM079C-040-3LL (Each)
4 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$7.41 AUD
$7.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Lobe Knobs - 5/16-18 UNC - 7.94mm - 39.88x38.1 mm Three Lobe - Plated Steel Knob
Thread Size
5/16-18 UNC (7.94mm)
Head Diameter (A)
39.88
mm
Thread Length
38.1
mm
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   
Part Number: KM079C-040-3LL (Each)
4 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$7.41 AUD
$7.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

4 Available Now. Backorder if more than 4.
Lobe Knobs - 5/16-18 UNC - 7.94mm - 50.04x44.5 mm Three Lobe - Plated Steel Knob
Thread Size
5/16-18 UNC (7.94mm)
Head Diameter (A)
50.04
mm
Thread Length
44.5
mm
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   
Part Number: KM079C-050-3LL (Each)
5 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$6.50 AUD
$7.80 AUD $6.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Lobe Knobs - 5/16-18 UNC - 7.94mm - 50.04x44.5 mm Three Lobe - Plated Steel Knob
Thread Size
5/16-18 UNC (7.94mm)
Head Diameter (A)
50.04
mm
Thread Length
44.5
mm
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   
Part Number: KM079C-050-3LL (Each)
5 Available Now | Further orders can be expected around Sun, Jun 28, 2026
$6.50 AUD
$7.80 AUD $6.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Lobe Knobs - 3/8-16 UNC - 9.53mm - 39.88x38.1 mm Three Lobe - Plated Steel Knob
Thread Size
3/8-16 UNC (9.53mm)
Head Diameter (A)
39.88
mm
Thread Length
38.1
mm
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   
Part Number: KM095C-040-3LL (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
$8.77 AUD
$8.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Lobe Knobs - 3/8-16 UNC - 9.53mm - 39.88x38.1 mm Three Lobe - Plated Steel Knob
Thread Size
3/8-16 UNC (9.53mm)
Head Diameter (A)
39.88
mm
Thread Length
38.1
mm
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   
Part Number: KM095C-040-3LL (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
$8.77 AUD
$8.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.