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4 Arm Prong Knobs

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Lobed knobs, also called clamping knobs, have a scalloped edge with four grip points to allow for maximum grip and comfort, even while wearing gloves.

These durable lobed knobs are impact- and chemical-resistant and provide a neat appearance for finished applications that require precision adjustments.

Reid Supply has a wide range of 4-lobed knobs, from plastic knobs to stainless steel and iron in a variety of thread sizes and mounting types.

Learn more about what solutions exist for your application in our article on selecting the right knobs and handles.

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For large volumes and customised products, add to your cart and click request a quote, orcontact usand we will respond within 2 working days.

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330 results
Product SKUs information
Item Code Price range Availability Thread Size Overall Diameter Mount Type Thread Length Knob Material Overall Height Brand View
$15.79 - $24.82 119 In stock
3/8-16
2.500 in
Male
1.750 in
Iron
1.500 in
Reid Select
$2.21 - $3.48 8 In stock
1/4-20
1.580 in
Male
0.980 in
Thermoplastic
1.930 in
Reid Select
$0.91 - $1.43 92 In stock
5/16-18
1.570 in
Male
0.980 in
Thermoplastic
1.100 in
Reid Select
$16.00 - $25.15 3 In stock
3/8-16
2.500 in
Male
3.000 in
Iron
1.500 in
Reid Select
$2.13 - $3.34 199 In stock
#10-24
.790 in
Male
0.750 in
Phenolic
1.580 in
Reid Select
$1.80 - $2.83 Request the lead time here
5/8-11
3.150 in
Male
1.180 in
Thermoplastic
2.790 in
Reid Select
$5.45 - $5.45 93 In stock
Non Threaded
2.125 in
Reamed
Aluminum
1.250 in
Jergens
$1.31 - $2.06 Request the lead time here
1/4-20
1.260 in
Male
1.000 in
Phenolic
2.030 in
Reid Select
$0.59 - $0.92 100 In stock
1/4-20
.790 in
Male
0.510 in
Thermoplastic
0.510 in
Reid Select
$0.76 - $1.19 5 In stock
1/4-20
1.260 in
Male
0.980 in
Thermoplastic
1.890 in
Reid Select
$1.57 - $2.46 Request the lead time here
3/8-16
2.360 in
Male
0.980 in
Thermoplastic
2.280 in
Reid Select
$2.46 - $3.86 Request the lead time here
5/16-18
1.970 in
Male
1.250 in
Thermoplastic
2.370 in
Reid Select
$1.83 - $2.88 Request the lead time here
1/2-13
3.150 in
Male
1.380 in
Thermoplastic
1.610 in
Reid Select
$1.30 - $2.05 14 In stock
5/16-18
1.970 in
Male
1.180 in
Thermoplastic
2.300 in
Reid Select
$1.27 - $2.00 Request the lead time here
5/16-18
1.570 in
Male
1.500 in
Phenolic
2.780 in
Reid Select
$57.90 - $57.90 37 In stock
Non Threaded
2.480 in
Reamed
Stainless Steel
1.570 in
Kipp
$22.21 - $22.21 30 In stock
Non Threaded
2.750 in
Reamed
Iron
1.938 in
Reid Select
$1.83 - $2.88 Request the lead time here
5/8-11
3.150 in
Male
1.380 in
Thermoplastic
1.610 in
Reid Select
$1.30 - $2.05 3095 In stock
3/8-16
1.970 in
Male
0.980 in
Thermoplastic
2.100 in
Reid Select
$3.14 - $4.93 93 In stock
1/2-13
2.360 in
Male
1.500 in
Thermoplastic
2.800 in
Reid Select
  • of 17
Lobed Knob - Male; 2.500 in; 3/8-16; Steel

KA-5

Price Range
$24.82 - $15.79

Stock Levels
119 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    1.750 in
  • Knob Material
    Iron
  • Overall Diameter
    2.500 in
Lobed Knob - Male; 1.580 in; 1/4-20; Stainless Steel

JCL-229

Price Range
$3.48 - $2.21

Stock Levels
8 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.580 in
Lobed Knob - Male; 1.570 in; 5/16-18; Steel

JCL-225

Price Range
$1.43 - $0.91

Stock Levels
92 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.570 in
Lobed Knob - Male; 2.500 in; 3/8-16; Steel

KA-6

Price Range
$25.15 - $16.00

Stock Levels
3 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    3.000 in
  • Knob Material
    Iron
  • Overall Diameter
    2.500 in
Lobed Knob - Male; .790 in; #10-24; Steel

RST-98

Price Range
$3.34 - $2.13

Stock Levels
199 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    #10-24
  • Thread Length
    0.750 in
  • Knob Material
    Phenolic
  • Overall Diameter
    .790 in
Lobed Knob - Male; 3.150 in; 5/8-11; Steel

JCL-265

Price Range
$2.83 - $1.80

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/8-11
  • Thread Length
    1.180 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.150 in
Lobed Knob - Reamed; 2.125 in; Non Threaded;

JAC-112

Price Range
$5.45 - $5.45

Stock Levels
93 In stock
Attributes
  • Brand
    Jergens
  • Thread Size
    Non Threaded
  • Knob Material
    Aluminum
  • Overall Diameter
    2.125 in
  • Overall Height
    1.250 in
Lobed Knob - Male; 1.260 in; 1/4-20; Steel

RST-83

Price Range
$2.06 - $1.31

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    1.000 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.260 in
Lobed Knob - Male; .790 in; 1/4-20; Steel

JCL-190

Price Range
$0.92 - $0.59

Stock Levels
100 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.510 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    .790 in
Lobed Knob - Male; 1.260 in; 1/4-20; Steel

JCL-126

Price Range
$1.19 - $0.76

Stock Levels
5 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.260 in
Lobed Knob - Male; 2.360 in; 3/8-16; Steel

JCL-136

Price Range
$2.46 - $1.57

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.360 in
Lobed Knob - Male; 1.970 in; 5/16-18; Stainless Steel

JCL-234

Price Range
$3.86 - $2.46

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    1.250 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.970 in
Lobed Knob - Male; 3.150 in; 1/2-13; Steel

JCL-260

Price Range
$2.88 - $1.83

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    1.380 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.150 in
Lobed Knob - Male; 1.970 in; 5/16-18; Steel

JCL-132

Price Range
$2.05 - $1.30

Stock Levels
14 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    1.180 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.970 in
Lobed Knob - Male; 1.570 in; 5/16-18; Steel

RST-86

Price Range
$2.00 - $1.27

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    1.500 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.570 in
Lobed Knob - Reamed; 2.480 in; Non Threaded; Stainless Steel

KHJ-164

Price Range
$57.90 - $57.90

Stock Levels
37 In stock
Attributes
  • Brand
    Kipp
  • Thread Size
    Non Threaded
  • Knob Material
    Stainless Steel
  • Overall Diameter
    2.480 in
  • Overall Height
    1.570 in
Lobed Knob - Reamed; 2.750 in; Non Threaded; Cast Iron

RC-4A

Price Range
$22.21 - $22.21

Stock Levels
30 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Iron
  • Overall Diameter
    2.750 in
  • Overall Height
    1.938 in
Lobed Knob - Male; 3.150 in; 5/8-11; Steel

JCL-270

Price Range
$2.88 - $1.83

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/8-11
  • Thread Length
    1.380 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.150 in
Lobed Knob - Male; 1.970 in; 3/8-16; Steel

JCL-133

Price Range
$2.05 - $1.30

Stock Levels
3095 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.970 in
Lobed Knob - Male; 2.360 in; 1/2-13; Stainless Steel

JCL-242

Price Range
$4.93 - $3.14

Stock Levels
93 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    1.500 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.360 in