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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
$1.34 - $2.30 784 In stock
1.000 in
3/8-16
Stud
Steel
2.500 in
PP
$1.29 - $2.23 889 In stock
0.750 in
3/8-16
Stud
Steel
2.500 in
PP
$1.45 - $2.48 877 In stock
2.500 in
3/8-16
Stud
Steel
2.500 in
PP
$1.43 - $2.45 990 In stock
0.630 in
1/4-20
Stud
Steel
1.400 in
TPE Overlay PP
$0.99 - $1.72 1490 In stock
5/16-18
Thru-Hole
Steel
1.750 in
PP
$1.38 - $2.37 490 In stock
3/8-16
Stop Nut
Steel
2.500 in
PP
$1.29 - $2.23 1000 In stock
0.750 in
#10-32
Stud
Steel
1.400 in
TPE Overlay PP
$1.56 - $2.68 1224 In stock
0.750 in
#10-32
Stud
Steel
1.730 in
TPE Overlay PP
$1.82 - $3.14 1360 In stock
1.500 in
1/4-20
Stud
Steel
2.000 in
TPE Overlay PP
$0.78 - $1.34 735 In stock
2.000 in
5/16-18
Stud
Steel
1.400 in
PP
$0.67 - $1.16 1175 In stock
0.370 in
1/4-20
Stud
Steel
1.400 in
PP
$1.23 - $2.12 1275 In stock
#10-32
Blind Hole
Steel
1.400 in
TPE Overlay PP
$1.05 - $1.80 1997 In stock
5/16-18
Blind Hole
Steel
1.750 in
PP
$1.47 - $2.54 500 In stock
1/2-13
Blind Hole
Steel
2.500 in
PP
$1.23 - $2.12 1015 In stock
5/16-18
Blind Hole
Steel
2.500 in
PP
$1.08 - $1.84 426 In stock
2.500 in
5/16-18
Stud
Steel
1.750 in
PP
$1.22 - $2.10 1040 In stock
0.500 in
5/16-18
Stud
Steel
2.500 in
PP
$1.90 - $2.24 1240 In stock
1/4-20
Blind Hole
Steel
1.400 in
TPE Overlay PP
$1.14 - $1.97 490 In stock
1/4-20
Blind Hole
Steel
2.500 in
PP
$0.78 - $1.34 803 In stock
1/4-20
Blind Hole
Brass
1.400 in
PP
    • of 5
4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C10004P7--21

Price Range
$2.30 - $1.34

Stock Levels
784 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

KN6C07504P7--21

Price Range
$2.23 - $1.29

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

KN6C25004P7--21

Price Range
$2.48 - $1.45

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
$2.45 - $1.43

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 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C----4P4--21

Price Range
$1.72 - $0.99

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 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C----4P7L-21

Price Range
$2.37 - $1.38

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 1.400 in #10-32 0.640 in Black Steel TPE Overlay PP

KN0207504S2-S21

Price Range
$2.23 - $1.29

Stock Levels
1000 In stock
Attributes
  • Nominal Diameter
    1.400 in
  • Thread Size
    #10-32
  • 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 #10-32 0.820 in Black Steel TPE Overlay PP

KN0207504S4-S21

Price Range
$2.68 - $1.56

Stock Levels
1224 In stock
Attributes
  • Nominal Diameter
    1.730 in
  • Thread Size
    #10-32
  • Hub Diameter
    0.750 in
  • Knob Height
    0.820 in
  • Hub Height
    0.250 in
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4-Arm Knob 2.000 in 1/4-20 0.820 in Black Steel TPE Overlay PP

KN4C15004S5-S21

Price Range
$3.14 - $1.82

Stock Levels
1360 In stock
Attributes
  • Nominal Diameter
    2.000 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 1.400 in 5/16-18 0.640 in Black Steel PP

KN5C20004S2--21

Price Range
$1.34 - $0.78

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

KN4C03754S2--21

Price Range
$1.16 - $0.67

Stock Levels
1175 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 1.400 in #10-32 0.640 in Black Steel TPE Overlay PP

KN02----4S2BS21

Price Range
$2.12 - $1.23

Stock Levels
1275 In stock
Attributes
  • Nominal Diameter
    1.400 in
  • Thread Size
    #10-32
  • Hub Diameter
    0.550 in
  • Knob Height
    0.640 in
  • Hub Height
    0.180 in
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4-Arm Knob 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C----4P4B-22

Price Range
$1.80 - $1.05

Stock Levels
1997 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 1/2-13 1.130 in Black Steel PP

KN8C----4P7B-21

Price Range
$2.54 - $1.47

Stock Levels
500 In stock
Attributes
  • Nominal Diameter
    2.500 in
  • Thread Size
    1/2-13
  • 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 5/16-18 1.130 in Black Steel PP

KN5C----4P7B-22

Price Range
$2.12 - $1.23

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 5/16-18 1.020 in Black Steel PP

KN5C25004P4--21

Price Range
$1.84 - $1.08

Stock Levels
426 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 5/16-18 1.130 in Black Steel PP

KN5C05004P7--21

Price Range
$2.10 - $1.22

Stock Levels
1040 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 1.400 in 1/4-20 0.640 in Black Steel TPE Overlay PP

KN4C----4S2BS21

Price Range
$2.24 - $1.90

Stock Levels
1240 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 2.500 in 1/4-20 1.130 in Black Steel PP

KN4C----4P7B-21

Price Range
$1.97 - $1.14

Stock Levels
490 In stock
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 1.400 in 1/4-20 0.640 in Black Brass PP

KN4C----4S2B-90

Price Range
$1.34 - $0.78

Stock Levels
803 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
Quick View
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