Knobs - Thumb - For Cap Screws

29 Products in this selection
  • Four Types and four colours to fit onto Socket Head Cap Screws.
  • To fit Socket Head Cap Screws (Order Separately)
  • Choice of 4 Colours.
  • Choice of 4 styles.
  • Made From Acetal Resin.
Additional resources:
Thumb Screws and Nuts PDF Quick Guide
Knobs PDF Catalogue
Cap Screws
A more concise listing may be found on the Smallparts store at Knobs - Thumb - For Cap Screws. Smallparts promote the most popular MBA products.
Suits Cap Screw Thread Head Diameter (A) Thickness (B) Colour Style Indicative
Image
Suits Cap Screw Thread
M8 (8.00mm) - Use Own Screw
Head Diameter (A)
26.00
mm
Thickness (B)
9.8
mm
Colour
Black
Style
Knurled
Thumb Knobs - M8 -8.00mm- - Use Own Screw 26x9.8 mm - Plastic
Material: Plastic    Hub Diameter (C): 16.000 mm   
Part Number: KM080M-026-KNU-B (15 Pcs) Thumb Knobs - M8 -8.00mm- - Use Own Screw 26x9.8 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Wed, Jun 11, 2025
$19.32 AUD
$19.32 AUD
Per 15
Suits Cap Screw Thread Head Diameter (A) Thickness (B) Colour Indicative
Image
Suits Cap Screw Thread
M8 (8.00mm) - Use Own Screw
Head Diameter (A)
26.00
mm
Thickness (B)
9.8
mm
Colour
Black
Thumb Knobs - M8 -8.00mm- - Use Own Screw 26x9.8 mm - Plastic
Material: Plastic    Style: Knurled    Hub Diameter (C): 16.000 mm   
Part Number: KM080M-026-KNU-B (15 Pcs) Thumb Knobs - M8 -8.00mm- - Use Own Screw 26x9.8 mm - Plastic
Out of Stock | Backorder Now | Orders can be expected around Wed, Jun 11, 2025
$19.32 AUD
$19.32 AUD
Per 15
View the product page first if you are unsure.
Suits Cap Screw Thread
3/8 (9.53mm) - Use Own Screw
Head Diameter (A)
38.10
mm
Thickness (B)
11.9
mm
Colour
Black
Style
Rosette
Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 38.1x11.9 mm - Plastic
Material: Plastic    Hub Diameter (C): 17.859 mm   
Part Number: KM095-038-ROS-B (5 Pcs) Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 38.1x11.9 mm - Plastic
1 pack (5 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$5.00 AUD
$9.50 AUD $5.00 AUD
Per 5
Suits Cap Screw Thread
3/8 (9.53mm) - Use Own Screw
Head Diameter (A)
38.10
mm
Thickness (B)
11.9
mm
Colour
Black
Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 38.1x11.9 mm - Plastic
Material: Plastic    Style: Rosette    Hub Diameter (C): 17.859 mm   
Part Number: KM095-038-ROS-B (5 Pcs) Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 38.1x11.9 mm - Plastic
1 pack (5 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$5.00 AUD
$9.50 AUD $5.00 AUD
Per 5
Suits Cap Screw Thread
3/8 (9.53mm) - Use Own Screw
Head Diameter (A)
44.45
mm
Thickness (B)
11.9
mm
Colour
Black
Style
Tee
Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 44.45x11.9 mm - Plastic
Material: Plastic    Hub Diameter (C): 18.256 mm   
Part Number: KM095-044-TEE-B (10 Pcs) Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 44.45x11.9 mm - Plastic
6 units (60 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Suits Cap Screw Thread
3/8 (9.53mm) - Use Own Screw
Head Diameter (A)
44.45
mm
Thickness (B)
11.9
mm
Colour
Black
Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 44.45x11.9 mm - Plastic
Material: Plastic    Style: Tee    Hub Diameter (C): 18.256 mm   
Part Number: KM095-044-TEE-B (10 Pcs) Thumb Knobs - 3/8 -9.53mm- - Use Own Screw 44.45x11.9 mm - Plastic
6 units (60 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Suits Cap Screw Thread
M10 (10.00mm) - Use Own Screw
Head Diameter (A)
38.00
mm
Thickness (B)
12.5
mm
Colour
Yellow
Style
Rosette
Thumb Knobs - M10 -10.00mm- - Use Own Screw 38x12.5 mm - Plastic
Material: Plastic   
Part Number: KM100M-038-ROS-Y (10 Pcs) Thumb Knobs - M10 -10.00mm- - Use Own Screw 38x12.5 mm - Plastic
11 units (110 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Suits Cap Screw Thread
M10 (10.00mm) - Use Own Screw
Head Diameter (A)
38.00
mm
Thickness (B)
12.5
mm
Colour
Yellow
Thumb Knobs - M10 -10.00mm- - Use Own Screw 38x12.5 mm - Plastic
Material: Plastic    Style: Rosette   
Part Number: KM100M-038-ROS-Y (10 Pcs) Thumb Knobs - M10 -10.00mm- - Use Own Screw 38x12.5 mm - Plastic
11 units (110 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Suits Cap Screw Thread
M10 (10.00mm) - Use Own Screw
Head Diameter (A)
45.00
mm
Thickness (B)
12.5
mm
Colour
Black
Style
Tee
Thumb Knobs - M10 -10.00mm- - Use Own Screw 45x12.5 mm - Plastic
Material: Plastic    Hub Diameter (C): 20.000 mm   
Part Number: KM100M-045-TEE-B (10 Pcs) Thumb Knobs - M10 -10.00mm- - Use Own Screw 45x12.5 mm - Plastic
5 units (50 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10
Suits Cap Screw Thread
M10 (10.00mm) - Use Own Screw
Head Diameter (A)
45.00
mm
Thickness (B)
12.5
mm
Colour
Black
Thumb Knobs - M10 -10.00mm- - Use Own Screw 45x12.5 mm - Plastic
Material: Plastic    Style: Tee    Hub Diameter (C): 20.000 mm   
Part Number: KM100M-045-TEE-B (10 Pcs) Thumb Knobs - M10 -10.00mm- - Use Own Screw 45x12.5 mm - Plastic
5 units (50 pcs) Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Per 10