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3 Arm Prong Knobs

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3-arm prong knobs are among the most common type of lobed knob, allowing easy access even with thick gloves on for small adjustments to equipment and workpieces across industries.

Find inch and metric 3-lobed knobs at Reid Supply in both female and male thread inserts of a variety of materials, including plastic, stainless steel, and brass insert threading in Reid Supply’s online catalog.

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133 results

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Product SKUs information
Item Code Price range Availability Thread Size Overall Diameter Mount Type Thread Length Knob Material Overall Height Brand View
$1.61 - $2.53 Request the lead time here
3/8-16
2.560 in
Female
0.560 in
Thermoplastic
1.100 in
Reid Select
$4.97 - $7.81 Request the lead time here
5/8-11
4.920 in
Female
0.940 in
Thermoplastic
2.090 in
Reid Select
$4.97 - $7.81 Request the lead time here
1/2-13
4.920 in
Female
0.750 in
Thermoplastic
2.090 in
Reid Select
$1.80 - $2.83 440 In stock
1/2-13
3.350 in
Female
0.750 in
Thermoplastic
1.420 in
Reid Select
$2.19 - $3.44 Request the lead time here
5/8-11
4.130 in
Female
0.940 in
Thermoplastic
1.770 in
Reid Select
$1.09 - $1.09 37 In stock
#10-32
1.180 in
Female
0.550 in
Thermoplastic
0.6500 in
Reid Select
$2.01 - $2.01 Request the lead time here
3/8-16
2.170 in
Female
0.900 in
Thermoplastic
1.0800 in
Reid Select
$0.95 - $1.50 93 In stock
3/8-16
Female
0.500 in
ABS
DimcoGray
$0.69 - $1.08 Request the lead time here
#10-32
1.125 in
Female
0.380 in
Phenolic
0.750 in
Reid Select
$1.22 - $1.22 251 In stock
5/16-18
Female
0.438 in
ABS
DimcoGray
$1.31 - $1.31 Request the lead time here
1/4-20
1.500 in
Female
0.380 in
Phenolic
0.875 in
Reid Select
$1.41 - $1.57 659 In stock
1/4-20
Female
0.500 in
ABS
DimcoGray
$1.00 - $1.00 207 In stock
3/8-16
Female
0.625 in
ABS
DimcoGray
$2.19 - $3.44 Request the lead time here
3/8-16
4.130 in
Female
0.560 in
Thermoplastic
1.770 in
Reid Select
$1.58 - $1.58 Request the lead time here
1/4-20
0.750 in
Female
0.380 in
Phenolic
0.7200 in
Reid Select
$2.19 - $3.44 91 In stock
1/2-13
4.130 in
Female
0.787 in
Thermoplastic
1.770 in
Reid Select
$1.80 - $2.83 778 In stock
3/8-16
3.350 in
Female
0.560 in
Thermoplastic
1.420 in
Reid Select
$4.21 - $4.21 Request the lead time here
1/2-13
2.170 in
Female
0.900 in
Thermoplastic
1.0800 in
Reid Select
$2.89 - $2.89 110 In stock
1/4-20
1.770 in
Female
0.700 in
Thermoplastic
0.8900 in
Reid Select
$1.87 - $1.87 123 In stock
1/4-20
1.125 in
Female
0.500 in
Phenolic
0.750 in
Reid Select
    • of 7
Lobed Knob - Female; 2.560 in; 3/8-16; Brass

JCL-350

Price Range
$2.53 - $1.61

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.560 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.560 in
Quick View
View Product >
Lobed Knob - Female; 4.920 in; 5/8-11; Brass

JCL-390

Price Range
$7.81 - $4.97

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/8-11
  • Thread Length
    0.940 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    4.920 in
Quick View
View Product >
Lobed Knob - Female; 4.920 in; 1/2-13; Brass

JCL-325

Price Range
$7.81 - $4.97

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
    4.920 in
Quick View
View Product >
Lobed Knob - Female; 3.350 in; 1/2-13; Brass

JCL-365

Price Range
$2.83 - $1.80

Stock Levels
440 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.750 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.350 in
Quick View
View Product >
Lobed Knob - Female; 4.130 in; 5/8-11; Brass

JCL-380

Price Range
$3.44 - $2.19

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/8-11
  • Thread Length
    0.940 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    4.130 in
Quick View
View Product >
Lobed Knob - Female; 1.180 in; #10-32; Brass

RK-300

Price Range
$1.09 - $1.09

Stock Levels
37 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    #10-32
  • Thread Length
    0.550 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.180 in
Quick View
View Product >
Lobed Knob - Female; 2.170 in; 3/8-16; Brass

RK-323

Price Range
$2.01 - $2.01

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.900 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.170 in
Quick View
View Product >
Lobed Knob - 3/8-16; 1.1250 in; Female; ABS, 4-414-002

DK-110

Price Range
$1.50 - $0.95

Stock Levels
93 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    3/8-16
  • Thread Length
    0.500 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - Female; 1.125 in; #10-32; Brass

DK-1203

Price Range
$1.08 - $0.69

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    #10-32
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.125 in
Quick View
View Product >
Lobed Knob - 5/16-18; 1.1250 in; Female; ABS, 4-414-001

DK-109

Price Range
$1.22 - $1.22

Stock Levels
251 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    5/16-18
  • Thread Length
    0.438 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - Female; 1.500 in; 1/4-20; Brass

DK-1205

Price Range
$1.31 - $1.31

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.500 in
Quick View
View Product >
Lobed Knob - 1/4-20; 0.8750 in; Female; ABS, 4-406-001

DK-104

Price Range
$1.57 - $1.41

Stock Levels
659 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    1/4-20
  • Thread Length
    0.500 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 3/8-16; 1.1250 in; Female; ABS, 4-416-002

DK-118

Price Range
$1.00 - $1.00

Stock Levels
207 In stock
Attributes
  • Brand
    DimcoGray
  • Thread Size
    3/8-16
  • Thread Length
    0.625 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - Female; 4.130 in; 3/8-16; Brass

JCL-370

Price Range
$3.44 - $2.19

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.560 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    4.130 in
Quick View
View Product >
Lobed Knob - Female; 0.750 in; 1/4-20; Brass

DK-601

Price Range
$1.58 - $1.58

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Overall Diameter
    0.750 in
Quick View
View Product >
Lobed Knob - Female; 4.130 in; 1/2-13; Brass

JCL-315

Price Range
$3.44 - $2.19

Stock Levels
91 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.787 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    4.130 in
Quick View
View Product >
Lobed Knob - Female; 3.350 in; 3/8-16; Brass

JCL-360

Price Range
$2.83 - $1.80

Stock Levels
778 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.560 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    3.350 in
Quick View
View Product >
Lobed Knob - Female; 2.170 in; 1/2-13; Brass

RK-324

Price Range
$4.21 - $4.21

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/2-13
  • Thread Length
    0.900 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    2.170 in
Quick View
View Product >
Lobed Knob - Female; 1.770 in; 1/4-20; Brass

RK-314

Price Range
$2.89 - $2.89

Stock Levels
110 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.700 in
  • Knob Material
    Thermoplastic
  • Overall Diameter
    1.770 in
Quick View
View Product >
Lobed Knob - Female; 1.125 in; 1/4-20; Brass

DK-1210

Price Range
$1.87 - $1.87

Stock Levels
123 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.500 in
  • Knob Material
    Phenolic
  • Overall Diameter
    1.125 in
Quick View
View Product >