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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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92 results
Product SKUs information
Item Code Price range Availability Stud Length Thread Size Insert Type Insert Material Nominal Diameter Knob Material View
$1.76 - $3.03 1360 In stock
1.500 in
1/4-20
Stud
Steel
2.000 in
TPE Overlay PP
$1.00 - $1.72 683 In stock
1.000 in
5/16-18
Stud
Steel
1.750 in
PP
$1.01 - $1.74 1997 In stock
5/16-18
Blind Hole
Steel
1.750 in
PP
$1.42 - $2.45 500 In stock
1/2-13
Blind Hole
Steel
2.500 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
$0.86 - $1.47 1190 In stock
0.500 in
1/4-20
Stud
Steel
1.730 in
PP
$1.25 - $2.15 Request the lead time here
0.591 in
M8
Stud
Steel
Polypropylene
$1.42 - $2.45 Request the lead time here
0.984 in
M8
Stud
Steel
Polypropylene
$1.07 - $1.85 Request the lead time here
0.394 in
M6
Stud
Steel
Polypropylene with TPE Overlay
$1.71 - $2.94 Request the lead time here
0.984 in
M8
Stud
Steel
Polypropylene with TPE Overlay
$1.71 - $2.94 Request the lead time here
M10
Blind Hole
Steel
Polypropylene
$0.96 - $1.66 Request the lead time here
M6
Stop Nut
Steel
Polypropylene
$1.60 - $2.75 Request the lead time here
1.378 in
M8
Stud
Steel
Polypropylene
$0.98 - $1.69 Request the lead time here
0.984 in
M6
Stud
Steel
Polypropylene
$1.34 - $2.30 Request the lead time here
0.787 in
M8
Stud
Steel
Polypropylene
$1.38 - $2.37 Request the lead time here
M8
Thru-Hole
Steel
Polypropylene
$2.05 - $3.53 Request the lead time here
M10
Blind Hole
Steel
Polypropylene with TPE Overlay
$0.85 - $1.46 Request the lead time here
0.984 in
M6
Stud
Steel
Polypropylene
$1.11 - $1.91 Request the lead time here
1.181 in
M8
Stud
Steel
Polypropylene
  • of 5
4-Arm Knob 2.000 in 1/4-20 0.820 in Black Steel TPE Overlay PP

KN4C15004S5-S21

Price Range
$3.03 - $1.76

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
4-Arm Knob 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C10004P4--21

Price Range
$1.72 - $1.00

Stock Levels
683 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
4-Arm Knob 1.750 in 5/16-18 1.020 in Black Steel PP

KN5C----4P4B-22

Price Range
$1.74 - $1.01

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
4-Arm Knob 2.500 in 1/2-13 1.130 in Black Steel PP

KN8C----4P7B-21

Price Range
$2.45 - $1.42

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
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
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
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
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20128357

Price Range
$2.15 - $1.25

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20128371

Price Range
$2.45 - $1.42

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M6 20.83 mm Black Steel 100% Recycled PP

20128517

Price Range
$1.85 - $1.07

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M6
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.177 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20128579

Price Range
$2.94 - $1.71

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.177 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M10 20.83 mm Black Steel 100% Recycled PP

20127374

Price Range
$2.94 - $1.71

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M10
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Blind Hole
4-Arm Knob 45.0 mm M6 26.42 mm Black Steel 100% Recycled PP

20131784

Price Range
$1.66 - $0.96

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M6
  • Hub Diameter
    0.75 in
  • Knob Height
    1.04 in
  • Hub Height
    0.54 in
  • Knob Style
    Thru-hole (Stop Nut)
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20128395

Price Range
$2.75 - $1.60

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M6 20.83 mm Black Steel 100% Recycled PP

20128326

Price Range
$1.69 - $0.98

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M6
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20128364

Price Range
$2.30 - $1.34

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M8 20.83 mm Black Steel 100% Recycled PP

20127350

Price Range
$2.37 - $1.38

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.25 in
  • Knob Style
    Thru-hole
4-Arm Knob 45.0 mm M10 20.83 mm Black Steel 100% Recycled PP

20600532

Price Range
$3.53 - $2.05

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M10
  • Hub Diameter
    0.75 in
  • Knob Height
    0.82 in
  • Hub Height
    0.177 in
  • Knob Style
    Blind Hole
4-Arm Knob 45.0 mm M6 26.42 mm Black Steel 100% Recycled PP

20127930

Price Range
$1.46 - $0.85

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M6
  • Hub Diameter
    0.75 in
  • Knob Height
    1.04 in
  • Hub Height
    0.54 in
  • Knob Style
    Studded
4-Arm Knob 45.0 mm M8 26.42 mm Black Steel 100% Recycled PP

20127992

Price Range
$1.91 - $1.11

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M8
  • Hub Diameter
    0.75 in
  • Knob Height
    1.04 in
  • Hub Height
    0.54 in
  • Knob Style
    Studded