JBF National’s knurled control knobs are manufactured from the highest quality steel and stainless steel. This control knob features a knurled rim that provides positive hand grip to make quick adjustments even with the oiliest or wettest of hands. The tapped through design is ideal for quick and easy fixation, and comes in a wide variety of inch and metric thread sizes.
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Thread Size

Knob Diameter (A) (mm)

Total Length (B) (mm)

Hub Diameter (C) (mm)

Knurled Width (D) (mm)

Material

Item #

Thread Size

Knob Diameter (A)

Total Length (B)

Hub Diameter (C)

Knurled Width (D)

Drawings

N/A M5 N/A 19 mm N/A 16 mm N/A 13 mm N/A 6 mm

N/A M6 N/A 19 mm N/A 16 mm N/A 13 mm N/A 6 mm

N/A M6 N/A 25 mm N/A 19 mm N/A 16 mm N/A 6 mm

N/A M8 N/A 25 mm N/A 19 mm N/A 16 mm N/A 6 mm

N/A M8 N/A 38 mm N/A 25 mm N/A 19 mm N/A 8 mm

N/A M10 N/A 38 mm N/A 25 mm N/A 19 mm N/A 8 mm

N/A M10 N/A 51 mm N/A 29 mm N/A 25 mm N/A 10 mm

N/A M12 N/A 51 mm N/A 29 mm N/A 25 mm N/A 10 mm

N/A M12 N/A 64 mm N/A 38 mm N/A 38 mm N/A 14 mm

N/A M16 N/A 64 mm N/A 38 mm N/A 38 mm N/A 14 mm

N/A M16 N/A 76 mm N/A 44 mm N/A 44 mm N/A 16 mm

N/A M20 N/A 76 mm N/A 44 mm N/A 44 mm N/A 16 mm

N/A M5 N/A 19 mm N/A 16 mm N/A 13 mm N/A 6 mm

N/A M6 N/A 19 mm N/A 16 mm N/A 13 mm N/A 6 mm

N/A M6 N/A 25 mm N/A 19 mm N/A 16 mm N/A 6 mm

N/A M8 N/A 25 mm N/A 19 mm N/A 16 mm N/A 6 mm

N/A M8 N/A 38 mm N/A 25 mm N/A 19 mm N/A 8 mm

N/A M10 N/A 38 mm N/A 25 mm N/A 19 mm N/A 8 mm

N/A M10 N/A 51 mm N/A 29 mm N/A 25 mm N/A 10 mm

N/A M12 N/A 51 mm N/A 29 mm N/A 25 mm N/A 10 mm

N/A M12 N/A 64 mm N/A 38 mm N/A 38 mm N/A 14 mm

N/A M16 N/A 64 mm N/A 38 mm N/A 38 mm N/A 14 mm

N/A M16 N/A 76 mm N/A 44 mm N/A 44 mm N/A 16 mm

N/A M20 N/A 76 mm N/A 44 mm N/A 44 mm N/A 16 mm

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