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Clamping Knobs 3-Arm

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Our Clamping 3-Arm Knobs allow a secure grip to position, control and hold various equipment across a wide range of industries. The lobe and prong design provide a deeper scalloped profile with excellent control and gripping features. These are an ideal choice for moderate clamping applications and offer a simple yet economical solution.

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45 results
Product SKUs information
Item Code Price range Availability Stud Length Knob Diameter Thread Size Insert Type Insert Material Knob Material View
$0.94 - $1.62 2390 In stock
1.500 in
1.750 in
1/4-20
Stud
Steel
PP
$1.37 - $2.36 1040 In stock
2.500 in
1.750 in
3/8-16
Stud
Steel
PP
$1.27 - $2.19 590 In stock
1.250 in
2.000 in
5/16-18
Stud
Steel
PP
$1.38 - $2.38 790 In stock
1.250 in
2.500 in
3/8-16
Stud
Steel
PP
$0.87 - $1.49 2297 In stock
0.750 in
1.750 in
1/4-20
Stud
Steel
PP
$1.10 - $1.89 1741 In stock
0.625 in
1.750 in
5/16-18
Stud
Steel
PP
$0.77 - $1.32 599 In stock
1.250 in
1/4-20
Blind Hole
Steel
PP
$1.35 - $2.33 314 In stock
3.500 in
2.000 in
3/8-16
Stud
Steel
PP
$1.22 - $2.09 1347 In stock
1.500 in
1.750 in
5/16-18
Stud
Steel
PP
$0.83 - $1.42 1990 In stock
1.250 in
5/16-18
Thru-Hole
Steel
PP
$1.14 - $1.96 990 In stock
0.750 in
1.750 in
5/16-18
Stud
Steel
PP
$0.98 - $1.69 1040 In stock
1.750 in
1.750 in
1/4-20
Stud
Steel
PP
$1.33 - $2.29 1190 In stock
1.500 in
1.750 in
3/8-16
Stud
Steel
PP
$1.27 - $2.19 Request the lead time here
2.000 in
3/8-16
Thru-Hole
Steel
PP
$1.30 - $2.23 490 In stock
1.500 in
2.000 in
3/8-16
Stud
Steel
PP
$1.16 - $1.99 3095 In stock
0.370 in
0.750 in
10-32
Stud
Steel
Nylon
$1.33 - $2.28 704 In stock
2.000 in
2.000 in
3/8-16
Stud
Steel
PP
$1.13 - $1.95 1500 In stock
0.250 in
0.750 in
10-32
Stud
Steel
Nylon
$0.75 - $1.29 2090 In stock
0.750 in
1.250 in
1/4-20
Stud
Steel
PP
$0.71 - $1.21 1990 In stock
1.250 in
1/4-20
Thru-Hole
Steel
PP
  • of 3
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 1/4-20; Stud Length 38.1 mm | 1.500 in

KN4C15003P4--21

Price Range
$1.62 - $0.94

Stock Levels
2390 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    1.500 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 3/8-16; Stud Length 63.5 mm | 2.500 in

KN6C25003P4--21

Price Range
$2.36 - $1.37

Stock Levels
1040 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    2.500 in
N/A - Knob Diameter 50.8 mm | 2.000 in; Thread Size 5/16-18; Stud Length 31.8 mm | 1.250 in

KN5C1250RT5--21

Price Range
$2.19 - $1.27

Stock Levels
590 In stock
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.610 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.490 in
  • Stud Length
    1.250 in
N/A - Knob Diameter 63.5 mm | 2.500 in; Thread Size 3/8-16; Stud Length 31.8 mm | 1.250 in

KN6C1250RT7--21

Price Range
$2.38 - $1.38

Stock Levels
790 In stock
Attributes
  • Knob Diameter
    2.500 in
  • Knob Height
    0.640 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.480 in
  • Stud Length
    1.250 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 1/4-20; Stud Length 19.1 mm | 0.750 in

KN4C07503P4--21

Price Range
$1.49 - $0.87

Stock Levels
2297 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    0.750 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 5/16-18; Stud Length 15.9 mm | 0.625 in

KN5C06253P4--21

Price Range
$1.89 - $1.10

Stock Levels
1741 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    0.625 in
N/A - Knob Diameter 31.8 mm | 1.250 in; Thread Size 1/4-20

KN4C----3P1B-21

Price Range
$1.32 - $0.77

Stock Levels
599 In stock
Attributes
  • Knob Diameter
    1.250 in
  • Knob Height
    0.450 in
  • Hub Diameter
    0.620 in
  • Hub Height
    0.500 in
  • Thread Size
    1/4-20
N/A - Knob Diameter 50.8 mm | 2.000 in; Thread Size 3/8-16; Stud Length 88.9 mm | 3.500 in

KN6C3500RT5--21

Price Range
$2.33 - $1.35

Stock Levels
314 In stock
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.610 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.490 in
  • Stud Length
    3.500 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 5/16-18; Stud Length 38.1 mm | 1.500 in

KN5C15003P4--21

Price Range
$2.09 - $1.22

Stock Levels
1347 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    1.500 in
N/A - Knob Diameter 31.8 mm | 1.250 in; Thread Size 5/16-18; Knob Height 11.4 mm | 0.450 in

KN5C----3P1--22

Price Range
$1.42 - $0.83

Stock Levels
1990 In stock
Attributes
  • Knob Diameter
    1.250 in
  • Knob Height
    0.450 in
  • Hub Diameter
    0.620 in
  • Hub Height
    0.500 in
  • Thread Size
    5/16-18
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 5/16-18; Stud Length 19.1 mm | 0.750 in

KN5C07503P4--21

Price Range
$1.96 - $1.14

Stock Levels
990 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    0.750 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 1/4-20; Stud Length 44.5 mm | 1.750 in

KN4C17503P4--21

Price Range
$1.69 - $0.98

Stock Levels
1040 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    1.750 in
N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 3/8-16; Stud Length 38.1 mm | 1.500 in

KN6C15003P4--21

Price Range
$2.29 - $1.33

Stock Levels
1190 In stock
Attributes
  • Knob Diameter
    1.750 in
  • Knob Height
    0.560 in
  • Hub Diameter
    0.750 in
  • Hub Height
    0.490 in
  • Stud Length
    1.500 in
N/A - Knob Diameter 50.8 mm | 2.000 in; Thread Size 3/8-16; Knob Height 15.5 mm | 0.610 in

KN6C----RT5--21

Price Range
$2.19 - $1.27

Stock Levels
Request the lead time here
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.610 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.490 in
  • Thread Size
    3/8-16
N/A - Knob Diameter 50.8 mm | 2.000 in; Thread Size 3/8-16; Stud Length 38.1 mm | 1.500 in

KN6C1500RT5--21

Price Range
$2.23 - $1.30

Stock Levels
490 In stock
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.610 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.490 in
  • Stud Length
    1.500 in
N/A - Knob Diameter 19.1 mm | 0.750 in; Thread Size 10-32; Stud Length 9.4 mm | 0.370 in

KN020375RT2-N21

Price Range
$1.99 - $1.16

Stock Levels
3095 In stock
Attributes
  • Knob Diameter
    0.750 in
  • Knob Height
    0.280 in
  • Hub Diameter
    0.500 in
  • Hub Height
    0.230 in
  • Stud Length
    0.370 in
N/A - Knob Diameter 50.8 mm | 2.000 in; Thread Size 3/8-16; Stud Length 50.8 mm | 2.000 in

KN6C2000RT5--21

Price Range
$2.28 - $1.33

Stock Levels
704 In stock
Attributes
  • Knob Diameter
    2.000 in
  • Knob Height
    0.610 in
  • Hub Diameter
    0.740 in
  • Hub Height
    0.490 in
  • Stud Length
    2.000 in
N/A - Knob Diameter 19.1 mm | 0.750 in; Thread Size 10-32; Stud Length 6.4 mm | 0.250 in

KN020250RT2-N21

Price Range
$1.95 - $1.13

Stock Levels
1500 In stock
Attributes
  • Knob Diameter
    0.750 in
  • Knob Height
    0.280 in
  • Hub Diameter
    0.500 in
  • Hub Height
    0.230 in
  • Stud Length
    0.250 in
N/A - Knob Diameter 31.8 mm | 1.250 in; Thread Size 1/4-20; Stud Length 19.1 mm | 0.750 in

KN4C07503P1--21

Price Range
$1.29 - $0.75

Stock Levels
2090 In stock
Attributes
  • Knob Diameter
    1.250 in
  • Knob Height
    0.450 in
  • Hub Diameter
    0.620 in
  • Hub Height
    0.500 in
  • Stud Length
    0.750 in
N/A - Knob Diameter 31.8 mm | 1.250 in; Thread Size 1/4-20; Knob Height 11.4 mm | 0.450 in

KN4C----3P1--21

Price Range
$1.21 - $0.71

Stock Levels
1990 In stock
Attributes
  • Knob Diameter
    1.250 in
  • Knob Height
    0.450 in
  • Hub Diameter
    0.620 in
  • Hub Height
    0.500 in
  • Thread Size
    1/4-20