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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 Knob Diameter Thread Size Insert Type Insert Material Knob Material View
$1.04 - $1.78 426 In stock
2.500 in
1.750 in
5/16-18
Stud
Steel
PP
$1.40 - $2.40 877 In stock
2.500 in
2.500 in
3/8-16
Stud
Steel
PP
$2.67 - $2.81 348 In stock
0.750 in
1.730 in
5/16-18
Stud
Steel
TPE
$0.96 - $1.65 414 In stock
0.500 in
1.730 in
5/16-18
Stud
Steel
PP
$1.24 - $2.13 490 In stock
2.500 in
3/8-16
Thru-Hole
Steel
PP
$1.18 - $2.03 1040 In stock
0.500 in
2.500 in
5/16-18
Stud
Steel
PP
$1.00 - $1.72 683 In stock
1.000 in
1.750 in
5/16-18
Stud
Steel
PP
$1.29 - $2.22 784 In stock
1.000 in
2.500 in
3/8-16
Stud
Steel
PP
$1.44 - $2.48 1244 In stock
1.250 in
1.400 in
1/4" x 20
Stud
Steel
TPE
$0.65 - $1.12 1175 In stock
0.370 in
1.400 in
1/4" x 20
Stud
Steel
PP
$1.01 - $1.74 1997 In stock
1.750 in
5/16-18
Blind Hole
Steel
PP
$1.06 - $1.82 950 In stock
2.500 in
1/4" x 20
Thru-Hole
Steel
PP
$1.19 - $2.05 1015 In stock
2.500 in
5/16-18
Blind Hole
Steel
PP
$1.14 - $1.97 312 In stock
1.000 in
2.500 in
1/4" x 20
Stud
Steel
PP
$1.19 - $2.04 1568 In stock
0.500 in
1.400 in
10-32
Stud
Steel
TPE
$1.70 - $2.92 1350 In stock
2.500 in
1.730 in
5/16-18
Stud
Steel
TPE
$1.19 - $2.05 1275 In stock
1.400 in
10-32
Blind Hole
Steel
TPE
$1.42 - $2.45 500 In stock
2.500 in
1/2-13
Blind Hole
Steel
PP
$1.38 - $2.37 1000 In stock
2.500 in
1/2-13
Thru-Hole
Steel
PP
$1.22 - $2.09 390 In stock
1.000 in
2.500 in
5/16-18
Stud
Steel
PP
    • of 3
4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN5C25004P4--21

Price Range
$1.78 - $1.04

Stock Levels
426 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    1.020 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.520 in
  • Stud Length
    2.500 in
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN6C25004P7--21

Price Range
$2.40 - $1.40

Stock Levels
877 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Stud Length
    2.500 in
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4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN5C07504S4-S21

Price Range
$2.81 - $2.67

Stock Levels
348 In stock
Attributes
  • Knob Diameter
    1.730 in
  • Knob Height
    0.820 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.250 in
  • Stud Length
    0.750 in
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4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN5C05004S4--21

Price Range
$1.65 - $0.96

Stock Levels
414 In stock
Attributes
  • Knob Diameter
    1.730 in
  • Knob Height
    0.820 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.250 in
  • Stud Length
    0.500 in
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN6C----4P7--21

Price Range
$2.13 - $1.24

Stock Levels
490 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Thread Size
    3/8-16
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN5C05004P7--21

Price Range
$2.03 - $1.18

Stock Levels
1040 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Stud Length
    0.500 in
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4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN5C10004P4--21

Price Range
$1.72 - $1.00

Stock Levels
683 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    1.020 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.520 in
  • Stud Length
    1.000 in
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN6C10004P7--21

Price Range
$2.22 - $1.29

Stock Levels
784 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Stud Length
    1.000 in
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4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN4C12504S2-S21

Price Range
$2.48 - $1.44

Stock Levels
1244 In stock
Attributes
  • Knob Diameter
    1.400 in
  • Knob Height
    0.640 in
  • Hub Diameter
    0.550 in
  • Hub Height
    0.180 in
  • Stud Length
    1.250 in
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4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN4C03754S2--21

Price Range
$1.12 - $0.65

Stock Levels
1175 In stock
Attributes
  • Knob Diameter
    1.400 in
  • Knob Height
    0.640 in
  • Hub Diameter
    0.550 in
  • Hub Height
    0.180 in
  • Stud Length
    0.370 in
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4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN5C----4P4B-22

Price Range
$1.74 - $1.01

Stock Levels
1997 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    1.020 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.520 in
  • Thread Size
    5/16-18
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN4C----4P7--21

Price Range
$1.82 - $1.06

Stock Levels
950 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Thread Size
    1/4" x 20
Quick View
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN5C----4P7B-22

Price Range
$2.05 - $1.19

Stock Levels
1015 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Thread Size
    5/16-18
Quick View
View Product >
4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN4C10004P7--21

Price Range
$1.97 - $1.14

Stock Levels
312 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Stud Length
    1.000 in
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4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN0205004S2-S21

Price Range
$2.04 - $1.19

Stock Levels
1568 In stock
Attributes
  • Knob Diameter
    1.400 in
  • Knob Height
    0.640 in
  • Hub Diameter
    0.550 in
  • Hub Height
    0.180 in
  • Stud Length
    0.500 in
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4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN5C25004S4-S21

Price Range
$2.92 - $1.70

Stock Levels
1350 In stock
Attributes
  • Knob Diameter
    1.730 in
  • Knob Height
    0.820 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.250 in
  • Stud Length
    2.500 in
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4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN02----4S2BS21

Price Range
$2.05 - $1.19

Stock Levels
1275 In stock
Attributes
  • Knob Diameter
    1.400 in
  • Knob Height
    0.640 in
  • Hub Diameter
    0.550 in
  • Hub Height
    0.180 in
  • Thread Size
    10-32
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN8C----4P7B-21

Price Range
$2.45 - $1.42

Stock Levels
500 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Thread Size
    1/2-13
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN8C----4P7--21

Price Range
$2.37 - $1.38

Stock Levels
1000 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Thread Size
    1/2-13
Quick View
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4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN5C10004P7--21

Price Range
$2.09 - $1.22

Stock Levels
390 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    1.130 in
  • Hub Diameter
    0.980 in
  • Hub Height
    0.480 in
  • Stud Length
    1.000 in
Quick View
View Product >