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Clamping Knobs 4-Arm

In stock

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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55 results
Product SKUs information
Item Code Price range Availability Stud Length Knob Diameter Thread Size Insert Type Insert Material Knob Material View
$0.97 - $1.66 814 In stock
0.750 in
1.750 in
5/16-18
Stud
Steel
PP
$0.96 - $1.66 1490 In stock
1.750 in
5/16-18
Thru-Hole
Steel
PP
$1.18 - $2.03 1040 In stock
0.500 in
2.500 in
5/16-18
Stud
Steel
PP
$1.36 - $2.34 785 In stock
1.500 in
2.500 in
3/8-16
Stud
Steel
PP
$1.40 - $2.40 877 In stock
2.500 in
2.500 in
3/8-16
Stud
Steel
PP
$1.33 - $2.29 490 In stock
2.500 in
3/8-16
Stop Nut
Steel
PP
$1.25 - $2.15 1000 In stock
0.750 in
1.400 in
10-32
Stud
Steel
TPE
$0.65 - $1.12 1175 In stock
0.370 in
1.400 in
1/4" x 20
Stud
Steel
PP
$1.07 - $1.85 76 In stock
3.000 in
1.750 in
3/8-16
Stud
Steel
PP
$0.86 - $1.47 1190 In stock
0.500 in
1.730 in
1/4" x 20
Stud
Steel
PP
$2.67 - $2.81 348 In stock
0.750 in
1.730 in
5/16-18
Stud
Steel
TPE
$1.38 - $2.37 1000 In stock
2.500 in
1/2-13
Thru-Hole
Steel
PP
$1.57 - $2.71 1115 In stock
1.730 in
5/16-18
Blind Hole
Steel
TPE
$1.76 - $3.03 1360 In stock
1.500 in
2.000 in
1/4" x 20
Stud
Steel
TPE
$1.06 - $1.82 950 In stock
2.500 in
1/4" x 20
Thru-Hole
Steel
PP
$1.57 - $2.70 1208 In stock
0.500 in
1.730 in
5/16-18
Stud
Steel
TPE
$0.75 - $1.29 735 In stock
2.000 in
1.400 in
5/16-18
Stud
Steel
PP
$1.15 - $1.98 424 In stock
2.500 in
5/16-18
Thru-Hole
Steel
PP
$1.19 - $2.04 1568 In stock
0.500 in
1.400 in
10-32
Stud
Steel
TPE
$0.87 - $1.50 Request the lead time here
1.750 in
1/4" x 20
Thru-Hole
Steel
PP
  • of 3
4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN5C07504P4--21

Price Range
$1.66 - $0.97

Stock Levels
814 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
    0.750 in
4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN5C----4P4--21

Price Range
$1.66 - $0.96

Stock Levels
1490 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
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
4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN6C15004P7--21

Price Range
$2.34 - $1.36

Stock Levels
785 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
    1.500 in
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
4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN6C----4P7L-21

Price Range
$2.29 - $1.33

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
4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN0207504S2-S21

Price Range
$2.15 - $1.25

Stock Levels
1000 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
    0.750 in
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
4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN6C30004P4--21

Price Range
$1.85 - $1.07

Stock Levels
76 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
    3.000 in
4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN4C05004S4--21

Price Range
$1.47 - $0.86

Stock Levels
1190 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
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
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
4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN5C----4S4BS21

Price Range
$2.71 - $1.57

Stock Levels
1115 In stock
Attributes
  • Knob Diameter
    1.730 in
  • Knob Height
    0.820 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.250 in
  • Thread Size
    5/16-18
4-Arm Knob - Knob Diameter 50.8 mm | 2.000 in; ; Knob Height 20.8 mm | 0.820 in

KN4C15004S5-S21

Price Range
$3.03 - $1.76

Stock Levels
1360 In stock
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.820 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.250 in
  • Stud Length
    1.500 in
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
4-Arm Knob - Knob Diameter 43.9 mm | 1.730 in; ; Knob Height 20.8 mm | 0.820 in

KN5C05004S4-S21

Price Range
$2.70 - $1.57

Stock Levels
1208 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
4-Arm Knob - Knob Diameter 35.6 mm | 1.400 in; ; Knob Height 16.3 mm | 0.640 in

KN5C20004S2--21

Price Range
$1.29 - $0.75

Stock Levels
735 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
    2.000 in
4-Arm Knob - Knob Diameter 63.5 mm | 2.500 in; ; Knob Height 28.7 mm | 1.130 in

KN5C----4P7--21

Price Range
$1.98 - $1.15

Stock Levels
424 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
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
4-Arm Knob - Knob Diameter 44.5 mm | 1.750 in; ; Knob Height 25.9 mm | 1.020 in

KN4C----4P4--21

Price Range
$1.50 - $0.87

Stock Levels
Request the lead time here
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    1.020 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.520 in
  • Thread Size
    1/4" x 20