Collection: Knobs - Ball
186 Products in this selection
This is a combined category of Ball 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.
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.

Additional resources:
Knobs PDF Quick Guide by Thread Size
Knobs PDF Quick Guide by Thread Size
A more concise listing may be found on the Smallparts store at Knobs - Ball. Smallparts promote the most popular MBA products.
Thread or Hole Size | Ball Diameter (A) | Thread Length | Colour | Style |
Indicative Image |
---|---|---|---|---|---|
Thread or Hole Size
12.70 mm Knock On
|
Ball Diameter (A)
44.45
mm |
Colour
Black
|
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Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF127-044-KOPH Ball Knobs - 12.70 mm Knock On 44.45 mm - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$24.14 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size | Ball Diameter (A) | Thread Length | Colour |
Indicative Image |
|
Thread or Hole Size
12.70 mm Knock On
|
Ball Diameter (A)
44.45
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF127-044-KOPH Ball Knobs - 12.70 mm Knock On 44.45 mm - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$24.14 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
44.96
mm |
Thread Length
19.1
|
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Material: Plastic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-045-TPLK Ball Knobs - 1/2-13 UNC -12.7mm- 44.96x19.1 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$27.05 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
44.96
mm |
Thread Length
19.1
|
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||
Material: Plastic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-045-TPLK Ball Knobs - 1/2-13 UNC -12.7mm- 44.96x19.1 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$27.05 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-048-TPH-IN Ball Knobs - 1/2-13 UNC -12.7mm- 47.62 - - - Phenolic
4 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$16.23 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-048-TPH-IN Ball Knobs - 1/2-13 UNC -12.7mm- 47.62 - - - Phenolic
4 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$16.23 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
47.63
mm |
Thread Length
15.9
|
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||
Material: Plastic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-048-TRT Ball Knobs - 1/2-13 UNC -12.7mm- 47.63x15.9 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$15.95 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
47.63
mm |
Thread Length
15.9
|
![]() |
||
Material: Plastic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-048-TRT Ball Knobs - 1/2-13 UNC -12.7mm- 47.63x15.9 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$15.95 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.00
mm |
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|||
Material: Aluminium
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-050-TPAL Ball Knobs - 1/2-13 UNC -12.7mm- 50 - Aluminium
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$80.32 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.00
mm |
![]() |
|||
Material: Aluminium
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-050-TPAL Ball Knobs - 1/2-13 UNC -12.7mm- 50 - Aluminium
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$80.32 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
30.0
|
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||
Material: Steel
Category: Knobs - Ball - Male Threaded |
|||||
Part Number: KM127C-050-NG Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x30 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$41.32 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
30.0
|
![]() |
||
Material: Steel
Category: Knobs - Ball - Male Threaded |
|||||
Part Number: KM127C-050-NG Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x30 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$41.32 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
39.9
|
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||
Material: Stainless Steel
Category: Knobs - Ball - Male Threaded |
|||||
Part Number: KM127C-050-NG-SS (10 Pcs) Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x39.9 mm - Stainless Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$739.05 AUD
Regular price
Unit price
/
per
Per 10
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
39.9
|
![]() |
||
Material: Stainless Steel
Category: Knobs - Ball - Male Threaded |
|||||
Part Number: KM127C-050-NG-SS (10 Pcs) Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x39.9 mm - Stainless Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$739.05 AUD
Regular price
Unit price
/
per
Per 10
|
|||||
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
50.0
|
![]() |
||
Material: Stainless Steel
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-050-NG-SS (10 Pcs) Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x50 mm - Stainless Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$576.95 AUD
Regular price
Unit price
/
per
Per 10
|
|||||
Thread or Hole Size
1/2-13 UNC (12.7mm)
|
Ball Diameter (A)
50.04
mm |
Thread Length
50.0
|
![]() |
||
Material: Stainless Steel
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127C-050-NG-SS (10 Pcs) Ball Knobs - 1/2-13 UNC -12.7mm- 50.04x50 mm - Stainless Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$576.95 AUD
Regular price
Unit price
/
per
Per 10
|
|||||
|
|||||
Thread or Hole Size
12.70 mm Knock On
|
Ball Diameter (A)
50.80
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF127-051-KOPH Ball Knobs - 12.70 mm Knock On 50.8 mm - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$19.77 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
12.70 mm Knock On
|
Ball Diameter (A)
50.80
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF127-051-KOPH Ball Knobs - 12.70 mm Knock On 50.8 mm - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$19.77 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 34.93 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$12.50 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 34.93 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$12.50 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Colour
Red
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPH-IN-BR-R Ball Knobs - 1/2-20 UNF -12.7mm- 34.93 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$14.77 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Colour
Red
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPH-IN-BR-R Ball Knobs - 1/2-20 UNF -12.7mm- 34.93 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$14.77 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Thread Length
15.9
|
![]() |
||
Material: Steel
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPST Ball Knobs - 1/2-20 UNF -12.7mm- 34.93x15.9 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$110.41 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
34.93
mm |
Thread Length
15.9
|
![]() |
||
Material: Steel
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-035-TPST Ball Knobs - 1/2-20 UNF -12.7mm- 34.93x15.9 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$110.41 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
41.28
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-041-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 41.28 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$17.86 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
41.28
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-041-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 41.28 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$17.86 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-048-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 47.62 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$18.59 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
1/2-20 UNF (12.7mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF127F-048-TPH-IN-A Ball Knobs - 1/2-20 UNF -12.7mm- 47.62 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$18.59 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
5/8-18 UNF (15.88mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF159F-048-TPH Ball Knobs - 5/8-18 UNF -15.88mm- 47.62 - - - Phenolic
9 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$13.68 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
5/8-18 UNF (15.88mm)
|
Ball Diameter (A)
47.62
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF159F-048-TPH Ball Knobs - 5/8-18 UNF -15.88mm- 47.62 - - - Phenolic
9 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$13.68 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
15.88 mm Knock On
|
Ball Diameter (A)
44.45
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF159-044-KOPH Ball Knobs - 15.88 mm Knock On 44.45 mm - - - Phenolic
1 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$17.23 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
15.88 mm Knock On
|
Ball Diameter (A)
44.45
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF159-044-KOPH Ball Knobs - 15.88 mm Knock On 44.45 mm - - - Phenolic
1 Available Immediately | Further orders can be expected around Tue, Jun 03, 2025 Regular price
$17.23 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
15.88 mm Knock On
|
Ball Diameter (A)
50.80
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF159-051-KOPH Ball Knobs - 15.88 mm Knock On 50.8 mm - - - Phenolic
2 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price
$8.59 AUD
Regular price
Unit price
/
per
Each
|
|||||
Thread or Hole Size
15.88 mm Knock On
|
Ball Diameter (A)
50.80
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Knock On Phenolic |
|||||
Part Number: KF159-051-KOPH Ball Knobs - 15.88 mm Knock On 50.8 mm - - - Phenolic
2 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price
$8.59 AUD
Regular price
Unit price
/
per
Each
|
|||||
|
|||||
Thread or Hole Size
M16 (16x2mm)
|
Ball Diameter (A)
48.00
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF160M-048-TPH-IN (250 Pcs) Ball Knobs - M16 -16x2mm- 48 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$7,336.95 AUD
Regular price
Unit price
/
per
Per 500
|
|||||
Thread or Hole Size
M16 (16x2mm)
|
Ball Diameter (A)
48.00
mm |
Colour
Black
|
![]() |
||
Material: Phenolic
Category: Knobs - Ball - Female Threaded |
|||||
Part Number: KF160M-048-TPH-IN (250 Pcs) Ball Knobs - M16 -16x2mm- 48 - - - Phenolic
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025 Regular price
$7,336.95 AUD
Regular price
Unit price
/
per
Per 500
|
|||||
|