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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
$0.91 - $1.56 1190 In stock
1/4-20
Stop Nut
Steel
1.730 in
PP
$1.23 - $2.11 1568 In stock
0.500 in
#10-32
Stud
Steel
1.400 in
TPE Overlay PP
$1.29 - $2.23 1000 In stock
0.750 in
#10-32
Stud
Steel
1.400 in
TPE Overlay PP
$1.11 - $1.91 76 In stock
3.000 in
3/8-16
Stud
Steel
1.750 in
PP
$1.62 - $2.80 1115 In stock
5/16-18
Blind Hole
Steel
1.730 in
TPE Overlay PP
$0.90 - $1.55 Request the lead time here
1/4-20
Thru-Hole
Steel
1.750 in
PP
$1.43 - $2.45 1000 In stock
1/2-13
Thru-Hole
Steel
2.500 in
PP
$2.91 - $2.91 348 In stock
0.750 in
5/16-18
Stud
Steel
1.730 in
TPE Overlay PP
$0.97 - $0.97 1580 In stock
0.620 in
1/4-20
Stud
Brass
1.150 in
PP
$0.95 - $1.64 2445 In stock
1/4-20
Blind Hole
Steel
1.750 in
PP
$1.34 - $2.29 993 In stock
3/8-16
Blind Hole
Steel
2.500 in
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
$1.08 - $1.84 426 In stock
2.500 in
5/16-18
Stud
Steel
1.750 in
PP
$1.37 - $2.36 858 In stock
1.250 in
3/8-16
Stud
Steel
2.500 in
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
$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
    • of 5
4-Arm Knob 1.730 in 1/4-20 0.820 in Black Steel PP

KN4C----4S4BL22

Price Range
$1.56 - $0.91

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

KN0205004S2-S21

Price Range
$2.11 - $1.23

Stock Levels
1568 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 1.400 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 1.750 in 3/8-16 1.020 in Black Steel PP

KN6C30004P4--21

Price Range
$1.91 - $1.11

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 1.730 in 5/16-18 0.820 in Black Steel TPE Overlay PP

KN5C----4S4BS21

Price Range
$2.80 - $1.62

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 1.750 in 1/4-20 1.020 in Black Steel PP

KN4C----4P4--21

Price Range
$1.55 - $0.90

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 1/2-13 1.130 in Black Steel PP

KN8C----4P7--21

Price Range
$2.45 - $1.43

Stock Levels
1000 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 1.730 in 5/16-18 0.820 in Black Steel TPE Overlay PP

KN5C07504S4-S21

Price Range
$2.91 - $2.91

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
$0.97 - $0.97

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 1.750 in 1/4-20 1.020 in Black Steel PP

KN4C----4P4B-21

Price Range
$1.64 - $0.95

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
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4-Arm Knob 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C----4P7B-21

Price Range
$2.29 - $1.34

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
$1.72 - $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 1.750 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 3/8-16 1.130 in Black Steel PP

KN6C12504P7--21

Price Range
$2.36 - $1.37

Stock Levels
858 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 1.730 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 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
Quick View
View Product >
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
Quick View
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