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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
$1.71 - $1.91 2769 In stock
3/8-16
Female Thru Hole
0.625 in
Phenolic
DimcoGray
$1.59 - $1.77 254 In stock
5/16-18
Female
0.625 in
Thermoplastic
DimcoGray
$3.79 - $3.79 66 In stock
Non Threaded
1.125 in
Blank
Iron
0.750 in
Reid Select
$13.23 - $13.23 246 In stock
Non Threaded
1.500 in
Blank
Aluminum
0.875 in
Reid Select
$1.75 - $1.75 Request the lead time here
1/4-20
Female
0.625 in
Thermoplastic
DimcoGray
$18.33 - $18.33 31 In stock
Non Threaded
3.500 in
Blank
Iron
1.500 in
Reid Select
$1.79 - $1.99 461 In stock
M10
Female Thru Hole
0.625 in
Phenolic
DimcoGray
$1.14 - $1.27 963 In stock
5/16-18
Female Thru Hole
0.500 in
Phenolic
DimcoGray
$19.36 - $19.36 11 In stock
Non Threaded
1.500 in
Reamed
Aluminum
0.875 in
Reid Select
$11.24 - $17.66 74 In stock
Non Threaded
2.500 in
Reamed
Iron
1.438 in
Reid Select
$2.13 - $3.34 199 In stock
#10-24
.790 in
Male
0.750 in
Phenolic
1.580 in
Reid Select
$2.38 - $3.74 Request the lead time here
1/2-13
1.970 in
Male
1.500 in
Phenolic
3.010 in
Reid Select
$3.00 - $4.72 6 In stock
1/2-13
1.970 in
Male
2.000 in
Phenolic
3.510 in
Reid Select
$7.70 - $12.10 28 In stock
Non Threaded
2.000 in
Reamed
Iron
0.813 in
Reid Select
$1.34 - $2.11 Request the lead time here
3/8-16
2.360 in
Male
0.980 in
Thermoplastic
1.500 in
Reid Select
$0.98 - $1.54 5 In stock
1/4-20
1.580 in
Male
0.980 in
Thermoplastic
1.930 in
Reid Select
$1.57 - $2.46 Request the lead time here
1/2-13
2.360 in
Male
0.980 in
Thermoplastic
2.280 in
Reid Select
$2.49 - $3.92 62 In stock
3/8-16
1.970 in
Male
0.980 in
Thermoplastic
2.100 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
$2.07 - $3.26 51 In stock
3/8-16
1.970 in
Male
1.500 in
Phenolic
2.510 in
Reid Select
  • of 17
Lobed Knob - ; ;

DK-87

Price Range
$1.91 - $1.71

Stock Levels
2769 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    3/8-16
  • Thread Length
    0.625 in
  • Knob Material
    Phenolic
  • Material
    Brass
Lobed Knob - ; ;

DK-216

Price Range
$1.77 - $1.59

Stock Levels
254 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    5/16-18
  • Thread Length
    0.625 in
  • Knob Material
    Thermoplastic
  • Material
    Brass
Lobed Knob - Blank; 1.125 in; Non Threaded; Cast Iron

KP-2

Price Range
$3.79 - $3.79

Stock Levels
66 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Iron
  • Overall Diameter
    1.125 in
  • Overall Height
    0.750 in
Lobed Knob - Blank; 1.500 in; Non Threaded;

STT-4

Price Range
$13.23 - $13.23

Stock Levels
246 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Aluminum
  • Overall Diameter
    1.500 in
  • Overall Height
    0.875 in
Lobed Knob - ; ;

DK-206

Price Range
$1.75 - $1.75

Stock Levels
Request the lead time here
Attributes
  • Brand
    DimcoGray
  • Thread Size
    1/4-20
  • Thread Length
    0.625 in
  • Knob Material
    Thermoplastic
  • Material
    Brass
Lobed Knob - Blank; 3.500 in; Non Threaded; Cast Iron

KC-5

Price Range
$18.33 - $18.33

Stock Levels
31 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Iron
  • Overall Diameter
    3.500 in
  • Overall Height
    1.500 in
Lobed Knob - ; ;

DK-1182

Price Range
$1.99 - $1.79

Stock Levels
461 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    M10
  • Thread Length
    0.625 in
  • Knob Material
    Phenolic
  • Material
    Brass
Lobed Knob - ; ;

DK-82

Price Range
$1.27 - $1.14

Stock Levels
963 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    5/16-18
  • Thread Length
    0.500 in
  • Knob Material
    Phenolic
  • Material
    Brass
Lobed Knob - Reamed; 1.500 in; Non Threaded;

STT-6R

Price Range
$19.36 - $19.36

Stock Levels
11 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Aluminum
  • Overall Diameter
    1.500 in
  • Overall Height
    0.875 in
Lobed Knob - Reamed; 2.500 in; Non Threaded; Cast Iron

RP-6B

Price Range
$17.66 - $11.24

Stock Levels
74 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Iron
  • Overall Diameter
    2.500 in
  • Overall Height
    1.438 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; 1.970 in; 1/2-13; Steel

RST-89

Price Range
$3.74 - $2.38

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    1.500 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.970 in
Lobed Knob - Male; 1.970 in; 1/2-13; Steel

RST-90

Price Range
$4.72 - $3.00

Stock Levels
6 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    2.000 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.970 in
Lobed Knob - Reamed; 2.000 in; Non Threaded; Cast Iron

RP-4A

Price Range
$12.10 - $7.70

Stock Levels
28 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    Non Threaded
  • Knob Material
    Iron
  • Overall Diameter
    2.000 in
  • Overall Height
    0.813 in
Lobed Knob - Male; 2.360 in; 3/8-16; Steel

JCL-240

Price Range
$2.11 - $1.34

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; 1.580 in; 1/4-20; Steel

JCL-127

Price Range
$1.54 - $0.98

Stock Levels
5 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.980 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.580 in
Lobed Knob - Male; 2.360 in; 1/2-13; Steel

JCL-138

Price Range
$2.46 - $1.57

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

JCL-236

Price Range
$3.92 - $2.49

Stock Levels
62 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; 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; 1.970 in; 3/8-16; Steel

RST-87

Price Range
$3.26 - $2.07

Stock Levels
51 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    1.500 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.970 in