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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
$1.18 - $1.86 982 In stock
1/4-20
1.260 in
Female
0.390 in
Phenolic
0.790 in
Reid Select
$9.44 - $9.44 1 In stock
1/4-20
1.125 in
Female Thru Hole
1.325 in
Iron
1.313 in
Reid Select
$11.10 - $11.10 54 In stock
3/8-16
1.500 in
Female Thru Hole
1.937 in
Iron
1.938 in
Reid Select
$11.24 - $17.66 217 In stock
1/2-13
2.500 in
Female
1.000 in
Iron
1.438 in
Reid Select
$1.67 - $1.86 303 In stock
1/4-20
Male
1.000 in
Phenolic
DimcoGray
$33.84 - $33.84 17 In stock
1/2-13
2.500 in
Male
3.000 in
Aluminum
4.125 in
Reid Select
$1.72 - $2.71 Request the lead time here
1/4-20
1.580 in
Female
0.375 in
Thermoplastic
0.950 in
Reid Select
$3.21 - $3.21 Request the lead time here
3/8-16
3.000 in
Female
0.500 in
Thermoplastic
1.310 in
Reid Select
$0.79 - $1.24 21 In stock
1/4-20
1.180 in
Female
0.380 in
Thermoplastic
0.870 in
Reid Select
$2.32 - $3.65 62 In stock
1/2-13
3.150 in
Female
0.750 in
Thermoplastic
1.610 in
Reid Select
$1.21 - $1.90 450 In stock
1/2-13
1.970 in
Female
0.750 in
Thermoplastic
1.120 in
Reid Select
$2.19 - $3.44 Request the lead time here
5/16-18
1.970 in
Female
0.469 in
Thermoplastic
0.950 in
Reid Select
$1.34 - $2.11 Request the lead time here
1/2-13
2.360 in
Female
0.750 in
Thermoplastic
1.500 in
Reid Select
$17.04 - $17.04 10 In stock
1/4-20
1.250 in
Female Thru Hole
0.433 in
Stainless Steel
0.790 in
Kipp
$7.65 - $7.65 139 In stock
1/2-13
3.000 in
Female
0.500 in
Thermoplastic
1.310 in
Reid Select
$1.67 - $2.62 Request the lead time here
5/16-18
1.570 in
Female
0.550 in
Phenolic
1.020 in
Reid Select
$21.69 - $21.69 348 In stock
3/8-16
2.500 in
Male
3.000 in
Aluminum
4.125 in
Reid Select
$7.93 - $7.93 31 In stock
1/4-20
1.125 in
Female
0.380 in
Iron
0.688 in
Reid Select
$22.68 - $22.68 19 In stock
1/2-13
2.750 in
Female
1.250 in
Iron
1.688 in
Reid Select
$1.60 - $1.60 1088 In stock
5/16-18
1.750 in
Male
0.500 in
Nylon
1.500 in
Reid Select
  • of 17
Lobed Knob - Female; 1.260 in; 1/4-20; Brass

RST-93

Price Range
$1.86 - $1.18

Stock Levels
982 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.390 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.260 in
Lobed Knob - Female Thru Hole; 1.125 in; 1/4-20; Cast Iron

TC-0A

Price Range
$9.44 - $9.44

Stock Levels
1 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    1.325 in
  • Knob Material
    Iron
  • Overall Diameter
    1.125 in
Lobed Knob - Female Thru Hole; 1.500 in; 3/8-16; Cast Iron

TC-1A

Price Range
$11.10 - $11.10

Stock Levels
54 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    1.937 in
  • Knob Material
    Iron
  • Overall Diameter
    1.500 in
Lobed Knob - Female; 2.500 in; 1/2-13; Cast Iron

TP-6B

Price Range
$17.66 - $11.24

Stock Levels
217 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    1.000 in
  • Knob Material
    Iron
  • Overall Diameter
    2.500 in
Lobed Knob - ; ;

DK-675

Price Range
$1.86 - $1.67

Stock Levels
303 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    1/4-20
  • Thread Length
    1.000 in
  • Knob Material
    Phenolic
  • Material
    Steel
Lobed Knob - Male; 2.500 in; 1/2-13;

AKA-8

Price Range
$33.84 - $33.84

Stock Levels
17 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    3.000 in
  • Knob Material
    Aluminum
  • Overall Diameter
    2.500 in
Lobed Knob - Female; 1.580 in; 1/4-20; Stainless Steel

JCL-219

Price Range
$2.71 - $1.72

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.375 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.580 in
Lobed Knob - Female; 3.000 in; 3/8-16; Brass

RK-35

Price Range
$3.21 - $3.21

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.500 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.000 in
Lobed Knob - Female; 1.180 in; 1/4-20; Brass

JCL-85

Price Range
$1.24 - $0.79

Stock Levels
21 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.380 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.180 in
Lobed Knob - Female; 3.150 in; 1/2-13; Brass

JCL-120

Price Range
$3.65 - $2.32

Stock Levels
62 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.750 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.150 in
Lobed Knob - Female; 1.970 in; 1/2-13; Brass

JCL-111

Price Range
$1.90 - $1.21

Stock Levels
450 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.750 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.970 in
Lobed Knob - Female; 1.970 in; 5/16-18; Stainless Steel

JCL-211

Price Range
$3.44 - $2.19

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.469 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.970 in
Lobed Knob - Female; 2.360 in; 1/2-13; Brass

JCL-175

Price Range
$2.11 - $1.34

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.750 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.360 in
Lobed Knob - Female Thru Hole; 1.250 in; 1/4-20; Stainless Steel

KHJ-166

Price Range
$17.04 - $17.04

Stock Levels
10 In stock
Attributes
  • Brand
    Kipp
  • Thread Size
    1/4-20
  • Thread Length
    0.433 in
  • Knob Material
    Stainless Steel
  • Overall Diameter
    1.250 in
Lobed Knob - Female; 3.000 in; 1/2-13; Brass

RK-40

Price Range
$7.65 - $7.65

Stock Levels
139 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.500 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.000 in
Lobed Knob - Female; 1.570 in; 5/16-18; Brass

RST-94

Price Range
$2.62 - $1.67

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.550 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.570 in
Lobed Knob - Male; 2.500 in; 3/8-16;

AKA-6

Price Range
$21.69 - $21.69

Stock Levels
348 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    3.000 in
  • Knob Material
    Aluminum
  • Overall Diameter
    2.500 in
Lobed Knob - Female; 1.125 in; 1/4-20; Cast Iron

TP-2A

Price Range
$7.93 - $7.93

Stock Levels
31 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.380 in
  • Knob Material
    Iron
  • Overall Diameter
    1.125 in
Lobed Knob - Female; 2.750 in; 1/2-13; Cast Iron

TP-8A

Price Range
$22.68 - $22.68

Stock Levels
19 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    1.250 in
  • Knob Material
    Iron
  • Overall Diameter
    2.750 in
Lobed Knob - Male; 1.750 in; 5/16-18; Steel

DK-1198

Price Range
$1.60 - $1.60

Stock Levels
1088 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.500 in
  • Knob Material
    Nylon
  • Overall Diameter
    1.750 in