Collection: Knobs - Ball - Knock On Phenolic

Knobs (With Images)

Ball

Female Threaded
Knock On Phenolic
Male Threaded

13 Products in this selection

Moulded from black phenolic resin.
Light Weight.
Thermal insulating.
Non corrosive.
POK Type have a ribbed insert. Shaft should be 0 to 0.007 mm undersized for best results
712 Type suit standard metric rod

Additional resources:
Knobs PDF Quick Guide by Thread Size

A more concise listing may be found on the Smallparts store at Knobs - Ball - Knock On Phenolic. Smallparts promote the most popular MBA products.

Thread or Hole Size	Ball Diameter (A)	Thread Length	Colour	Style
Thread or Hole Size 4.00 mm Push On	Ball Diameter (A) 16.00 mm		Colour Black
Material: Phenolic Hole Type: Slightly Oversized
Part Number: KF040-016-KOPH (5 Pcs) Ball Knobs - 4.00 mm Push On 16 mm - - - Phenolic 1 pack (5 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 5
Thread or Hole Size	Ball Diameter (A)	Thread Length	Colour	Indicative Image
Thread or Hole Size 4.00 mm Push On	Ball Diameter (A) 16.00 mm		Colour Black
Material: Phenolic Hole Type: Slightly Oversized
Part Number: KF040-016-KOPH (5 Pcs) Ball Knobs - 4.00 mm Push On 16 mm - - - Phenolic 1 pack (5 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 5
KF040-016-KOPH (5 Pcs) --- Ball Knobs - 4.00 mm Push On 16 mm - - - Phenolic Sale KF040-016-KOPH (5 Pcs) --- Ball Knobs - 4.00 mm Push On 16 mm - - - Phenolic Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per 1 Available Now Sale
Thread or Hole Size 4.76 mm Push On	Ball Diameter (A) 19.05 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF048-019-KOPH Ball Knobs - 4.76 mm Push On 19.05 mm - - - Phenolic 8 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $13.41 AUD Regular price Sale price $13.41 AUD Unit price per Each
Thread or Hole Size 4.76 mm Push On	Ball Diameter (A) 19.05 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF048-019-KOPH Ball Knobs - 4.76 mm Push On 19.05 mm - - - Phenolic 8 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $13.41 AUD Regular price Sale price $13.41 AUD Unit price per Each View the product page first if you are unsure.
KF048-019-KOPH --- Ball Knobs - 4.76 mm Push On 19.05 mm - - - Phenolic KF048-019-KOPH --- Ball Knobs - 4.76 mm Push On 19.05 mm - - - Phenolic Regular price $13.41 AUD Regular price Sale price $13.41 AUD Unit price per 8 Available Now
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 19.05 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-019-KOPH Ball Knobs - 6.35 mm Knock On 19.05 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $26.77 AUD Regular price Sale price $26.77 AUD Unit price per Each
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 19.05 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-019-KOPH Ball Knobs - 6.35 mm Knock On 19.05 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $26.77 AUD Regular price Sale price $26.77 AUD Unit price per Each View the product page first if you are unsure.
KF064-019-KOPH --- Ball Knobs - 6.35 mm Knock On 19.05 mm - - - Phenolic KF064-019-KOPH --- Ball Knobs - 6.35 mm Knock On 19.05 mm - - - Phenolic Regular price $26.77 AUD Regular price Sale price $26.77 AUD Unit price per Out of stock! Backorder Now
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 25.40 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-025-KOPH Ball Knobs - 6.35 mm Knock On 25.4 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Each
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 25.40 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-025-KOPH Ball Knobs - 6.35 mm Knock On 25.4 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Each View the product page first if you are unsure.
KF064-025-KOPH --- Ball Knobs - 6.35 mm Knock On 25.4 mm - - - Phenolic KF064-025-KOPH --- Ball Knobs - 6.35 mm Knock On 25.4 mm - - - Phenolic Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Out of stock! Backorder Now
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 31.75 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-032-KOPH Ball Knobs - 6.35 mm Knock On 31.75 mm - - - Phenolic 1 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $11.14 AUD Regular price Sale price $11.14 AUD Unit price per Each
Thread or Hole Size 6.35 mm Knock On	Ball Diameter (A) 31.75 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF064-032-KOPH Ball Knobs - 6.35 mm Knock On 31.75 mm - - - Phenolic 1 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $11.14 AUD Regular price Sale price $11.14 AUD Unit price per Each View the product page first if you are unsure.
KF064-032-KOPH --- Ball Knobs - 6.35 mm Knock On 31.75 mm - - - Phenolic KF064-032-KOPH --- Ball Knobs - 6.35 mm Knock On 31.75 mm - - - Phenolic Regular price $11.14 AUD Regular price Sale price $11.14 AUD Unit price per 1 Available Now
Thread or Hole Size 7.94 mm Knock On	Ball Diameter (A) 25.40 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF079-025-KOPH Ball Knobs - 7.94 mm Knock On 25.4 mm - - - Phenolic 2 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Each
Thread or Hole Size 7.94 mm Knock On	Ball Diameter (A) 25.40 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF079-025-KOPH Ball Knobs - 7.94 mm Knock On 25.4 mm - - - Phenolic 2 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Each View the product page first if you are unsure.
KF079-025-KOPH --- Ball Knobs - 7.94 mm Knock On 25.4 mm - - - Phenolic KF079-025-KOPH --- Ball Knobs - 7.94 mm Knock On 25.4 mm - - - Phenolic Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per 2 Available Now
Thread or Hole Size 9.53 mm Knock On	Ball Diameter (A) 31.75 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF095-032-KOPH Ball Knobs - 9.53 mm Knock On 31.75 mm - - - Phenolic 1 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $12.50 AUD Regular price Sale price $12.50 AUD Unit price per Each
Thread or Hole Size 9.53 mm Knock On	Ball Diameter (A) 31.75 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF095-032-KOPH Ball Knobs - 9.53 mm Knock On 31.75 mm - - - Phenolic 1 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $12.50 AUD Regular price Sale price $12.50 AUD Unit price per Each View the product page first if you are unsure.
KF095-032-KOPH --- Ball Knobs - 9.53 mm Knock On 31.75 mm - - - Phenolic KF095-032-KOPH --- Ball Knobs - 9.53 mm Knock On 31.75 mm - - - Phenolic Regular price $12.50 AUD Regular price Sale price $12.50 AUD Unit price per 1 Available Now
Thread or Hole Size 9.53 mm Knock On	Ball Diameter (A) 38.10 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF095-038-KOPH Ball Knobs - 9.53 mm Knock On 38.1 mm - - - Phenolic 2 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $19.32 AUD Regular price Sale price $19.32 AUD Unit price per Each
Thread or Hole Size 9.53 mm Knock On	Ball Diameter (A) 38.10 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF095-038-KOPH Ball Knobs - 9.53 mm Knock On 38.1 mm - - - Phenolic 2 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $19.32 AUD Regular price Sale price $19.32 AUD Unit price per Each View the product page first if you are unsure.
KF095-038-KOPH --- Ball Knobs - 9.53 mm Knock On 38.1 mm - - - Phenolic KF095-038-KOPH --- Ball Knobs - 9.53 mm Knock On 38.1 mm - - - Phenolic Regular price $19.32 AUD Regular price Sale price $19.32 AUD Unit price per 2 Available Now
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 38.10 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF127-038-KOPH Ball Knobs - 12.70 mm Knock On 38.1 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $20.32 AUD Regular price Sale price $20.32 AUD Unit price per Each
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 38.10 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
Part Number: KF127-038-KOPH Ball Knobs - 12.70 mm Knock On 38.1 mm - - - Phenolic Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $20.32 AUD Regular price Sale price $20.32 AUD Unit price per Each View the product page first if you are unsure.
KF127-038-KOPH --- Ball Knobs - 12.70 mm Knock On 38.1 mm - - - Phenolic KF127-038-KOPH --- Ball Knobs - 12.70 mm Knock On 38.1 mm - - - Phenolic Regular price $20.32 AUD Regular price Sale price $20.32 AUD Unit price per Out of stock! Backorder Now
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 44.45 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $24.14 AUD Unit price per Each
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 44.45 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $24.14 AUD Unit price per Each View the product page first if you are unsure.
KF127-044-KOPH --- Ball Knobs - 12.70 mm Knock On 44.45 mm - - - Phenolic KF127-044-KOPH --- Ball Knobs - 12.70 mm Knock On 44.45 mm - - - Phenolic Regular price $24.14 AUD Regular price Sale price $24.14 AUD Unit price per Out of stock! Backorder Now
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 50.80 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $19.77 AUD Unit price per Each
Thread or Hole Size 12.70 mm Knock On	Ball Diameter (A) 50.80 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $19.77 AUD Unit price per Each View the product page first if you are unsure.
KF127-051-KOPH --- Ball Knobs - 12.70 mm Knock On 50.8 mm - - - Phenolic KF127-051-KOPH --- Ball Knobs - 12.70 mm Knock On 50.8 mm - - - Phenolic Regular price $19.77 AUD Regular price Sale price $19.77 AUD Unit price per Out of stock! Backorder Now
Thread or Hole Size 15.88 mm Knock On	Ball Diameter (A) 44.45 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $17.23 AUD Unit price per Each
Thread or Hole Size 15.88 mm Knock On	Ball Diameter (A) 44.45 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 Sale price $17.23 AUD Unit price per Each View the product page first if you are unsure.
KF159-044-KOPH --- Ball Knobs - 15.88 mm Knock On 44.45 mm - - - Phenolic KF159-044-KOPH --- Ball Knobs - 15.88 mm Knock On 44.45 mm - - - Phenolic Regular price $17.23 AUD Regular price Sale price $17.23 AUD Unit price per 1 Available Now
Thread or Hole Size 15.88 mm Knock On	Ball Diameter (A) 50.80 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 ~~$10.31 AUD~~ Sale price $8.59 AUD Unit price per Each
Thread or Hole Size 15.88 mm Knock On	Ball Diameter (A) 50.80 mm		Colour Black
Material: Phenolic Hole Type: Ribbed Insert
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 ~~$10.31 AUD~~ Sale price $8.59 AUD Unit price per Each
KF159-051-KOPH --- Ball Knobs - 15.88 mm Knock On 50.8 mm - - - Phenolic Sale KF159-051-KOPH --- Ball Knobs - 15.88 mm Knock On 50.8 mm - - - Phenolic Regular price $8.59 AUD Regular price ~~$10.31 AUD~~ Sale price $8.59 AUD Unit price per 2 Available Now Sale