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CAT Pull Stud Retention Knob

CAT Pull Stud Retention Knob (ANSI/ASME B5.50-1994 Standard) is precision machined from 20CrMnTi alloy steel for CAT series tool holders (V-Flange/CT). Compliant with American ANSI standard specifications. U model indicates UNC imperial thread, non-U uses metric thread. T model indicates center coolant-through hole for through-spindle coolant. Provides metric and imperial dimension reference.

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$1k+
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$3k+
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$8k+
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$15k+
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$30k+
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$50k+
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8 SKUs available

Specifications

Cart+SKUPriceQuantityTotald1d2d3d5d6L1L2L3SW
CAT40-A45° U
$7
$018.8mm (0.74″)12.4mm (0.49″)23.8mm (0.94″)5/8″-11UNC-38.1mm (1.5″)16.2mm (0.64″)11.2mm (0.44″)19.05mm (0.75″)
CAT40-A45° U/T
$7
$018.8mm (0.74″)12.4mm (0.49″)23.8mm (0.94″)5/8″-11UNC7.1mm (0.281″)38.1mm (1.5″)16.2mm (0.64″)11.2mm (0.44″)19.05mm (0.75″)
CAT50-A45° U
$11
$028.9mm (1.14″)20.8mm (0.82″)36.5mm (1.44″)1″-8UNC-58.4mm (2.3″)25.4mm (1″)17.7mm (0.7″)31.75mm (1.25″)
CAT50-A45° U/T
$11
$028.9mm (1.14″)20.8mm (0.82″)36.5mm (1.44″)1″-8UNC11.9mm (0.468″)58.4mm (2.3″)25.4mm (1″)17.7mm (0.7″)31.75mm (1.25″)
CAT40-A45°
$7
$018.8mm (0.74″)12.4mm (0.49″)23.8mm (0.94″)M16*2.0P-38.1mm (1.5″)16.2mm (0.64″)11.2mm (0.44″)19.05mm (0.75″)
CAT40-A45° /T
$7
$018.8mm (0.74″)12.4mm (0.49″)23.8mm (0.94″)M16*2.0P7.1mm (0.281″)38.1mm (1.5″)16.2mm (0.64″)11.2mm (0.44″)19.05mm (0.75″)
CAT50-A45°
$11
$028.9mm (1.14″)20.8mm (0.82″)36.5mm (1.44″)M24*3.0P-58.4mm (2.3″)25.4mm (1″)17.7mm (0.7″)31.75mm (1.25″)
CAT50-A45° /T
$11
$028.9mm (1.14″)20.8mm (0.82″)36.5mm (1.44″)M24*3.0P11.9mm (0.468″)58.4mm (2.3″)25.4mm (1″)17.7mm (0.7″)31.75mm (1.25″)
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What makes it stand out

Features

ANSI/ASME B5.50-1994 standard compliant for CAT holders

20CrMnTi alloy steel with head hardness 55-58 HRC

High precision machining with 0.005mm dimensional accuracy

U models: UNC imperial thread; non-U models: metric thread

T suffix: center coolant-through hole for through-spindle coolant

Metric and imperial dimension reference provided

For professional reference

Technical Drawing

Fig.1

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