4-Prong Cast Iron Knobs
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4 PRONG KNOB |
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Blank Casting |
Reamed |
Tapped |
Tapped w/set screw |
Center Hole Dia. |
A |
B |
C |
D+C |
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P/N |
P/N |
P/N |
P/N |
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4K-2 |
4K-2-RM |
4K-2-TP |
N/A |
1/4" |
1 1/8" |
9/16" |
5/16" |
3/4" |
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4K-3 |
4K-3-RM |
4K-3-TP |
N/A |
5/16" |
1 1/2" |
5/8" |
7/16" |
1" |
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4K-4 |
4K-4-RM |
4K-4-TP |
4K-4-TPS |
3/8" |
2" |
3/4" |
7/16" |
1" |
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4K-5 |
4K-5-RM |
4K-5-TP |
4K-5-TPS |
1/2" |
2 9/16" |
1 1/8" |
1/2" |
1 1/2" |
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4K-6 |
4K-6-RM |
4K-6-TP |
4K-6-TPS |
5/8" |
2 1/2" |
1" |
1/2" |
2 1/4" |
Made in the USA, ELCO 4K series cast iron knobs feature a four-prong design for industrial control and clamping applications.
Available as cast blanks or with reamed or tapped through-holes. Tapped knobs with set screws are available in select sizes. See the table above for dimensions and part numbers.
Contact us for pricing, availability, or specific machining requirements.
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