JBF National's phenolic ball knob comes with a high quality brass insert, and due to the high gloss finish and lack of mold lines, this phenolic knob ensures the operator’s continued palm comfort. Available in inch and metric thread sizes.
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Dimension A (in)

Dimension B (in)

Dimension C (in)

Dimension d2 (in)

Dimension t

Item #

Dimension A

Dimension B

Dimension C

Dimension d2

Dimension t

Drawings

N/A 0.75 in N/A 0.72 in N/A 0.46 in N/A 0.37 in N/A 10-32

N/A 0.75 in N/A 0.72 in N/A 0.46 in N/A 0.37 in N/A 10-24

N/A 0.75 in N/A 0.72 in N/A 0.46 in N/A 0.37 in N/A 1/4-20

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.37 in N/A 10-32

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.37 in N/A 10-24

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.37 in N/A 1/4-28

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.37 in N/A 1/4-20

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.50 in N/A 5/16-18

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.50 in N/A 5/16-18

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.50 in N/A 3/8-24

N/A 1 in N/A 0.91 in N/A 0.56 in N/A 0.50 in N/A 3/8-16

N/A 1.25 in N/A 1.18 in N/A 0.63 in N/A 0.37 in N/A 1/4-20

N/A 1.25 in N/A 1.18 in N/A 0.63 in N/A 0.50 in N/A 5/16-18

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.37 in N/A 1/4-20

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.50 in N/A 5/16-24

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.50 in N/A 5/16-18

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.50 in N/A 3/8-24

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.50 in N/A 3/8-16

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.75 in N/A 7/16-20

N/A 1.37 in N/A 1.38 in N/A 0.63 in N/A 0.75 in N/A 1/2-20

N/A 1.75 in N/A 1.7 in N/A 0.63 in N/A 0.50 in N/A 3/8-16

N/A 2 in N/A 1.83 in N/A 1.04 in N/A 0.75 in N/A 3/8-16

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