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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 Knob Diameter Thread Size Insert Type Insert Material Knob Material View
$1.8697 - $5.3918 Request the lead time here
1.575 in
3.150 in
1/2-13
Stud
Steel
Phenolic
KNS2200A $0.4711 - $1.4458 1322 In stock
0.750 in
1.575 in
1/4-20
Stud
Steel
PP
$1.135 - $3.2461 1444 In stock
0.984 in
1.969 in
5/16-18
Stud
Steel
Phenolic
$1.3041 - $3.7127 2347 In stock
1.969 in
5/16-18
Thru-Hole
Brass
Phenolic
KNS1200A $0.4948 - $1.529 1750 In stock
1.575 in
1/4-20
Blind Hole
Steel
PP
KSP1300A $1.5522 - $4.1417 Request the lead time here
2.362 in
3/8-16
Thru-Hole
Brass
Phenolic
$0.537 - $1.6501 3075 In stock
1.375 in
1.575 in
1/4-20
Stud
Steel
PP
KSP2100A $1.4406 - $4.1044 4328 In stock
1.181 in
2.362 in
3/8-16
Stud
Steel
Phenolic
$1.38 - $3.00 79 In stock
3.000 in
1.750 in
3/8-16
Stud
Steel
PP
$1.55 - $3.38 390 In stock
1.000 in
2.500 in
5/16-18
Stud
Steel
PP
$1.62 - $3.52 785 In stock
1.500 in
2.500 in
3/8-16
Stud
Steel
PP
$1.93 - $4.20 800 In stock
0.370 in
1.400 in
1/4-20
Stud
Steel
TPE
$2.39 - $5.21 1208 In stock
0.500 in
1.730 in
5/16-18
Stud
Steel
TPE
$1.21 - $2.63 736 In stock
3.250 in
1.150 in
10-24
Stud
Steel
PP
$1.21 - $2.64 1190 In stock
0.500 in
1.730 in
1/4-20
Stud
Steel
PP
$1.49 - $3.25 1115 In stock
1.730 in
5/16-18
Blind Hole
Steel
TPE
$1.15 - $2.50 1015 In stock
2.500 in
5/16-18
Blind Hole
Steel
PP
$0.81 - $1.76 Request the lead time here
1.750 in
1/4-20
Thru-Hole
Steel
PP
$1.16 - $2.52 490 In stock
2.500 in
3/8-16
Thru-Hole
Steel
PP
$1.10 - $2.40 814 In stock
0.750 in
1.750 in
5/16-18
Stud
Steel
PP
    • of 3
4-Arm Knob - Knob Diameter 80 mm | 3.150 in; Thread Size 1/2-13; Stud Length 40 mm | 1.575 in

KSP2200A

Price Range
$5.3918 - $1.8697

Stock Levels
Request the lead time here
Attributes
  • Knob Diameter
    3.150 in
  • Stud Length
    1.575 in
  • Thread Size
    1/2-13
  • Finish
  • Mounting Method
    Threaded Stud
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4-Arm Knob - Knob Diameter 40 mm | 1.575 in; Thread Size 1/4-20; Stud Length 19.1 mm | 0.750 in

KNS2200A

Price Range
$1.4458 - $0.4711

Stock Levels
1322 In stock
Attributes
  • Knob Diameter
    1.575 in
  • Stud Length
    0.750 in
  • Thread Size
    1/4-20
  • Finish
  • Mounting Method
    Threaded Stud
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4-Arm Knob - Knob Diameter 50 mm | 1.969 in; Thread Size 5/16-18; Stud Length 25 mm | 0.984 in

KSP2000A

Price Range
$3.2461 - $1.135

Stock Levels
1444 In stock
Attributes
  • Knob Diameter
    1.969 in
  • Stud Length
    0.984 in
  • Thread Size
    5/16-18
  • Finish
  • Mounting Method
    Threaded Stud
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4-Arm Knob - Knob Diameter 50 mm | 1.969 in; Thread Size 5/16-18

KSP1100A

Price Range
$3.7127 - $1.3041

Stock Levels
2347 In stock
Attributes
  • Knob Diameter
    1.969 in
  • Thread Size
    5/16-18
  • Finish
    High-Gloss
  • Mounting Method
    Threaded Through-Hole
  • Insert Material
    Brass
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4-Arm Knob - Knob Diameter 40 mm | 1.575 in; Thread Size 1/4-20

KNS1200A

Price Range
$1.529 - $0.4948

Stock Levels
1750 In stock
Attributes
  • Knob Diameter
    1.575 in
  • Thread Size
    1/4-20
  • Finish
  • Mounting Method
    Threaded Blind
  • Insert Material
    Steel
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4-Arm Knob - Knob Diameter 60 mm | 2.362 in; Thread Size 3/8-16

KSP1300A

Price Range
$4.1417 - $1.5522

Stock Levels
Request the lead time here
Attributes
  • Knob Diameter
    2.362 in
  • Thread Size
    3/8-16
  • Finish
    High-Gloss
  • Mounting Method
    Threaded Through-Hole
  • Insert Material
    Brass
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4-Arm Knob - Knob Diameter 40 mm | 1.575 in; Thread Size 1/4-20; Stud Length 34.9 mm | 1.375 in

KNS2300A

Price Range
$1.6501 - $0.537

Stock Levels
3075 In stock
Attributes
  • Knob Diameter
    1.575 in
  • Stud Length
    1.375 in
  • Thread Size
    1/4-20
  • Mounting Method
    Threaded Stud
  • Insert Material
    Steel
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4-Arm Knob - Knob Diameter 60 mm | 2.362 in; Thread Size 3/8-16; Stud Length 30 mm | 1.181 in

KSP2100A

Price Range
$4.1044 - $1.4406

Stock Levels
4328 In stock
Attributes
  • Knob Diameter
    2.362 in
  • Stud Length
    1.181 in
  • Thread Size
    3/8-16
  • Finish
  • Mounting Method
    Threaded Stud
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N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 3/8-16; Stud Length 76.2 mm | 3.000 in

KN6C30004P4--21

Price Range
$3.00 - $1.38

Stock Levels
79 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
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N/A - Knob Diameter 63.5 mm | 2.500 in; Thread Size 5/16-18; Stud Length 25.4 mm | 1.000 in

KN5C10004P7--21

Price Range
$3.38 - $1.55

Stock Levels
390 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
    1.000 in
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N/A - Knob Diameter 63.5 mm | 2.500 in; Thread Size 3/8-16; Stud Length 38.1 mm | 1.500 in

KN6C15004P7--21

Price Range
$3.52 - $1.62

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
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N/A - Knob Diameter 35.6 mm | 1.400 in; Thread Size 1/4-20; Stud Length 9.4 mm | 0.370 in

KN4C03754S2-S21

Price Range
$4.20 - $1.93

Stock Levels
800 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
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N/A - Knob Diameter 43.9 mm | 1.730 in; Thread Size 5/16-18; Stud Length 12.7 mm | 0.500 in

KN5C05004S4-S21

Price Range
$5.21 - $2.39

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
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N/A - Knob Diameter 29.2 mm | 1.150 in; Thread Size 10-24; Stud Length 82.6 mm | 3.250 in

KN0432504S1--21

Price Range
$2.63 - $1.21

Stock Levels
736 In stock
Attributes
  • Knob Diameter
    1.150 in
  • Knob Height
    0.650 in
  • Hub Diameter
    0.500 in
  • Hub Height
    0.250 in
  • Stud Length
    3.250 in
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N/A - Knob Diameter 43.9 mm | 1.730 in; Thread Size 1/4-20; Stud Length 12.7 mm | 0.500 in

KN4C05004S4--21

Price Range
$2.64 - $1.21

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
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N/A - Knob Diameter 43.9 mm | 1.730 in; Thread Size 5/16-18; Knob Height 20.8 mm | 0.820 in

KN5C----4S4BS21

Price Range
$3.25 - $1.49

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
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N/A - Knob Diameter 63.5 mm | 2.500 in; Thread Size 5/16-18; Knob Height 28.7 mm | 1.130 in

KN5C----4P7B-22

Price Range
$2.50 - $1.15

Stock Levels
1015 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
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N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 1/4-20; Knob Height 25.9 mm | 1.020 in

KN4C----4P4--21

Price Range
$1.76 - $0.81

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
    1/4-20
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N/A - Knob Diameter 63.5 mm | 2.500 in; Thread Size 3/8-16; Knob Height 28.7 mm | 1.130 in

KN6C----4P7--21

Price Range
$2.52 - $1.16

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
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N/A - Knob Diameter 44.5 mm | 1.750 in; Thread Size 5/16-18; Stud Length 19.1 mm | 0.750 in

KN5C07504P4--21

Price Range
$2.40 - $1.10

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
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