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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
$1.15 - $1.98 424 In stock
5/16-18
Thru-Hole
Steel
2.500 in
PP
$0.88 - $1.51 1190 In stock
1/4-20
Stop Nut
Steel
1.730 in
PP
$1.19 - $2.04 1568 In stock
0.500 in
#10-32
Stud
Steel
1.400 in
TPE Overlay PP
$1.57 - $2.70 1208 In stock
0.500 in
5/16-18
Stud
Steel
1.730 in
TPE Overlay PP
$0.44 - $0.76 736 In stock
3.250 in
#10-24
Stud
Steel
1.150 in
PP
$1.04 - $1.78 426 In stock
2.500 in
5/16-18
Stud
Steel
1.750 in
PP
$1.51 - $2.59 1224 In stock
0.750 in
#10-32
Stud
Steel
1.730 in
TPE Overlay PP
$1.14 - $1.97 312 In stock
1.000 in
1/4-20
Stud
Steel
2.500 in
PP
$1.29 - $2.22 784 In stock
1.000 in
3/8-16
Stud
Steel
2.500 in
PP
$1.44 - $2.48 1252 In stock
1.250 in
1/4-20
Stud
Steel
1.400 in
TPE Overlay PP
$0.65 - $1.12 1175 In stock
0.370 in
1/4-20
Stud
Steel
1.400 in
PP
$1.19 - $2.05 1275 In stock
#10-32
Blind Hole
Steel
1.400 in
TPE Overlay PP
$1.06 - $1.82 950 In stock
1/4-20
Thru-Hole
Steel
2.500 in
PP
$1.38 - $2.37 1000 In stock
1/2-13
Thru-Hole
Steel
2.500 in
PP
$1.31 - $2.26 800 In stock
0.370 in
1/4-20
Stud
Steel
1.400 in
TPE Overlay PP
$1.19 - $2.05 1015 In stock
5/16-18
Blind Hole
Steel
2.500 in
PP
$0.87 - $1.50 Request the lead time here
1/4-20
Thru-Hole
Steel
1.750 in
PP
$0.89 - $0.94 1580 In stock
0.620 in
1/4-20
Stud
Brass
1.150 in
PP
$0.96 - $1.65 414 In stock
0.500 in
5/16-18
Stud
Steel
1.730 in
PP
$1.32 - $2.28 858 In stock
1.250 in
3/8-16
Stud
Steel
2.500 in
PP
    • of 5
4-Arm Knob 2.500 in 5/16-18 1.130 in Black Steel PP

KN5C----4P7--21

Price Range
$1.98 - $1.15

Stock Levels
424 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 1.730 in 1/4-20 0.820 in Black Steel PP

KN4C----4S4BL22

Price Range
$1.51 - $0.88

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
$2.04 - $1.19

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

KN5C05004S4-S21

Price Range
$2.70 - $1.57

Stock Levels
1208 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 #10-24 0.650 in Black Steel PP

KN0432504S1--21

Price Range
$0.76 - $0.44

Stock Levels
736 In stock
Attributes
  • Nominal Diameter
    1.150 in
  • Thread Size
    #10-24
  • 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 5/16-18 1.020 in Black Steel PP

KN5C25004P4--21

Price Range
$1.78 - $1.04

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 1.730 in #10-32 0.820 in Black Steel TPE Overlay PP

KN0207504S4-S21

Price Range
$2.59 - $1.51

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 2.500 in 1/4-20 1.130 in Black Steel PP

KN4C10004P7--21

Price Range
$1.97 - $1.14

Stock Levels
312 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 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C10004P7--21

Price Range
$2.22 - $1.29

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

KN4C12504S2-S21

Price Range
$2.48 - $1.44

Stock Levels
1252 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 1/4-20 0.640 in Black Steel PP

KN4C03754S2--21

Price Range
$1.12 - $0.65

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
$2.05 - $1.19

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 2.500 in 1/4-20 1.130 in Black Steel PP

KN4C----4P7--21

Price Range
$1.82 - $1.06

Stock Levels
950 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 2.500 in 1/2-13 1.130 in Black Steel PP

KN8C----4P7--21

Price Range
$2.37 - $1.38

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

KN4C03754S2-S21

Price Range
$2.26 - $1.31

Stock Levels
800 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 5/16-18 1.130 in Black Steel PP

KN5C----4P7B-22

Price Range
$2.05 - $1.19

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 1/4-20 1.020 in Black Steel PP

KN4C----4P4--21

Price Range
$1.50 - $0.87

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 1.150 in 1/4-20 0.650 in Black Brass PP

KN4C06254S1--90

Price Range
$0.94 - $0.89

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

KN5C05004S4--21

Price Range
$1.65 - $0.96

Stock Levels
414 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 2.500 in 3/8-16 1.130 in Black Steel PP

KN6C12504P7--21

Price Range
$2.28 - $1.32

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
Quick View
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