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Clamping Knobs 4 Arm Male Stud Prominent Grip

Clamping Knobs 4-Arm

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4-Arm Clamping Knobs provide a secure multilobed grip to position, tighten, and hold fixtures, equipment, and machinery. We offer a large selection of knob sizes, thread configurations and ergonomic grips to meet your design requirements. Our pronged knobs feature a plastic base design that provides excellent chemical resistance and a more economical choice opposed to all-steel versions.

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Product SKUs information
Item Code Price range Availability Stud Length Thread Size Insert Type Insert Material Nominal Diameter Knob Material View
$1.25 - $2.15 889 In stock
0.750 in
3/8-16
Stud
Steel
2.500 in
PP
$1.33 - $2.29 490 In stock
3/8-16
Stop Nut
Steel
2.500 in
PP
$0.87 - $1.50 Request the lead time here
1/4-20
Thru-Hole
Steel
1.750 in
PP
$1.24 - $2.13 490 In stock
3/8-16
Thru-Hole
Steel
2.500 in
PP
$0.97 - $1.66 814 In stock
0.750 in
5/16-18
Stud
Steel
1.750 in
PP
$1.11 - $1.91 Request the lead time here
0.500 in
1/4-20
Stud
Steel
2.500 in
PP
$1.40 - $2.40 877 In stock
2.500 in
3/8-16
Stud
Steel
2.500 in
PP
$1.38 - $2.37 990 In stock
0.630 in
1/4-20
Stud
Steel
1.400 in
TPE Overlay PP
$2.67 - $2.81 348 In stock
0.750 in
5/16-18
Stud
Steel
1.730 in
TPE Overlay PP
$0.89 - $0.94 1580 In stock
0.620 in
1/4-20
Stud
Brass
1.150 in
PP
$0.96 - $1.65 414 In stock
0.500 in
5/16-18
Stud
Steel
1.730 in
PP
$0.92 - $1.58 2445 In stock
1/4-20
Blind Hole
Steel
1.750 in
PP
$1.29 - $2.21 993 In stock
3/8-16
Blind Hole
Steel
2.500 in
PP
$0.96 - $1.66 1490 In stock
5/16-18
Thru-Hole
Steel
1.750 in
PP
$0.86 - $1.47 1190 In stock
0.500 in
1/4-20
Stud
Steel
1.730 in
PP
$1.57 - $2.71 1115 In stock
5/16-18
Blind Hole
Steel
1.730 in
TPE Overlay PP
$1.19 - $2.05 1015 In stock
5/16-18
Blind Hole
Steel
2.500 in
PP
$1.07 - $1.85 76 In stock
3.000 in
3/8-16
Stud
Steel
1.750 in
PP
$1.22 - $2.09 390 In stock
1.000 in
5/16-18
Stud
Steel
2.500 in
PP
$1.36 - $2.34 785 In stock
1.500 in
3/8-16
Stud
Steel
2.500 in
PP
    • of 5
4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C07504P7--21

Price Range
$2.15 - $1.25

Stock Levels
889 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C----4P7L-21

Price Range
$2.29 - $1.33

Stock Levels
490 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 1.750 in 1/4-20 1.020 in Black Steel PP

KN4C----4P4--21

Price Range
$1.50 - $0.87

Stock Levels
Request the lead time here
Attributes
  • Nominal Diameter
    1.750 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.750 in
  • Knob Height
    1.020 in
  • Hub Height
    0.520 in
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C----4P7--21

Price Range
$2.13 - $1.24

Stock Levels
490 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C07504P4--21

Price Range
$1.66 - $0.97

Stock Levels
814 In stock
Attributes
  • Nominal Diameter
    1.750 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.750 in
  • Knob Height
    1.020 in
  • Hub Height
    0.520 in
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4-Arm Knob 2.500 in 1/4-20 1.130 in Black Steel PP

KN4C05004P7--21

Price Range
$1.91 - $1.11

Stock Levels
Request the lead time here
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C25004P7--21

Price Range
$2.40 - $1.40

Stock Levels
877 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 1.400 in 1/4-20 0.640 in Black Steel TPE Overlay PP

KN4C06254S2-S21

Price Range
$2.37 - $1.38

Stock Levels
990 In stock
Attributes
  • Nominal Diameter
    1.400 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.550 in
  • Knob Height
    0.640 in
  • Hub Height
    0.180 in
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4-Arm Knob 1.730 in 5/16-18 0.820 in Black Steel TPE Overlay PP

KN5C07504S4-S21

Price Range
$2.81 - $2.67

Stock Levels
348 In stock
Attributes
  • Nominal Diameter
    1.730 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.750 in
  • Knob Height
    0.820 in
  • Hub Height
    0.250 in
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4-Arm Knob 1.150 in 1/4-20 0.650 in Black Brass PP

KN4C06254S1--90

Price Range
$0.94 - $0.89

Stock Levels
1580 In stock
Attributes
  • Nominal Diameter
    1.150 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.500 in
  • Knob Height
    0.650 in
  • Hub Height
    0.250 in
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4-Arm Knob 1.730 in 5/16-18 0.820 in Black Steel PP

KN5C05004S4--21

Price Range
$1.65 - $0.96

Stock Levels
414 In stock
Attributes
  • Nominal Diameter
    1.730 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.750 in
  • Knob Height
    0.820 in
  • Hub Height
    0.250 in
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4-Arm Knob 1.750 in 1/4-20 1.020 in Black Steel PP

KN4C----4P4B-21

Price Range
$1.58 - $0.92

Stock Levels
2445 In stock
Attributes
  • Nominal Diameter
    1.750 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.750 in
  • Knob Height
    1.020 in
  • Hub Height
    0.520 in
Quick View
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C----4P7B-21

Price Range
$2.21 - $1.29

Stock Levels
993 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C----4P4--21

Price Range
$1.66 - $0.96

Stock Levels
1490 In stock
Attributes
  • Nominal Diameter
    1.750 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.750 in
  • Knob Height
    1.020 in
  • Hub Height
    0.520 in
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4-Arm Knob 1.730 in 1/4-20 0.820 in Black Steel PP

KN4C05004S4--21

Price Range
$1.47 - $0.86

Stock Levels
1190 In stock
Attributes
  • Nominal Diameter
    1.730 in
  • Thread Size
    1/4-20
  • Hub Diameter
    0.750 in
  • Knob Height
    0.820 in
  • Hub Height
    0.250 in
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4-Arm Knob 1.730 in 5/16-18 0.820 in Black Steel TPE Overlay PP

KN5C----4S4BS21

Price Range
$2.71 - $1.57

Stock Levels
1115 In stock
Attributes
  • Nominal Diameter
    1.730 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.750 in
  • Knob Height
    0.820 in
  • Hub Height
    0.250 in
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4-Arm Knob 2.500 in 5/16-18 1.130 in Black Steel PP

KN5C----4P7B-22

Price Range
$2.05 - $1.19

Stock Levels
1015 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 1.750 in 3/8-16 1.020 in Black Steel PP

KN6C30004P4--21

Price Range
$1.85 - $1.07

Stock Levels
76 In stock
Attributes
  • Nominal Diameter
    1.750 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.750 in
  • Knob Height
    1.020 in
  • Hub Height
    0.520 in
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4-Arm Knob 2.500 in 5/16-18 1.130 in Black Steel PP

KN5C10004P7--21

Price Range
$2.09 - $1.22

Stock Levels
390 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    5/16-18
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C15004P7--21

Price Range
$2.34 - $1.36

Stock Levels
785 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    3/8-16
  • Hub Diameter
    0.980 in
  • Knob Height
    1.130 in
  • Hub Height
    0.480 in
Quick View
View Product >