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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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Product SKUs information
Item Code Price range Availability Thread Size Overall Diameter Mount Type Thread Length Knob Material Overall Height Brand View
$1.46 - $1.63 Request the lead time here
1/4-20
Female
0.438 in
ABS
DimcoGray
$1.17 - $1.17 Request the lead time here
1/4-20
Female
0.500 in
ABS
DimcoGray
$0.95 - $1.50 93 In stock
3/8-16
Female
0.500 in
ABS
DimcoGray
$0.64 - $0.64 218 In stock
3/8-16
Female
0.625 in
ABS
DimcoGray
$1.36 - $1.36 Request the lead time here
5/16-18
Female
0.500 in
Phenolic
Reid Select
$2.16 - $2.16 Request the lead time here
1/4-20
Female
0.375 in
Phenolic
Reid Select
$1.16 - $1.16 296 In stock
1/4-20
Female
0.380 in
Phenolic
Reid Select
$1.60 - $1.60 Request the lead time here
3/8-16
Female
0.380 in
Phenolic
Reid Select
$1.41 - $1.57 496 In stock
1/4-20
Female
0.500 in
ABS
DimcoGray
$2.76 - $2.76 Request the lead time here
5/16-18
Female
0.500 in
Phenolic
Reid Select
$0.69 - $0.69 251 In stock
5/16-18
Female
0.438 in
ABS
DimcoGray
$1.30 - $1.30 Request the lead time here
3/8-16
Female
0.625 in
ABS
DimcoGray
$1.31 - $1.31 Request the lead time here
1/4-20
Female
0.380 in
Phenolic
Reid Select
$1.87 - $1.87 83 In stock
1/4-20
Female
0.500 in
Phenolic
Reid Select
$2.69 - $2.69 Request the lead time here
3/8-16
Female
0.500 in
Phenolic
Reid Select
$1.58 - $1.58 Request the lead time here
1/4-20
Female
0.380 in
Phenolic
Reid Select
$1.20 - $1.20 Request the lead time here
5/16-18
Female
0.380 in
Phenolic
Reid Select
$1.13 - $1.78 1237 In stock
5/16-18
Female
0.470 in
Thermoplastic
Reid Select
$2.19 - $3.44 80 In stock
3/8-16
Female
0.560 in
Thermoplastic
Reid Select
$1.78 - $1.78 25 In stock
5/16-18
Female
0.470 in
Thermoplastic
Reid Select
    • of 7
Lobed Knob - 1/4-20; 1.0625 in; Female; ABS, 4-410-001

DK-106

Price Range
$1.63 - $1.46

Stock Levels
Request the lead time here
Attributes
  • Brand
    DimcoGray
  • Thread Size
    1/4-20
  • Thread Length
    0.438 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 1.1250 in; Female; ABS, 4-408-001

DK-112

Price Range
$1.17 - $1.17

Stock Levels
Request the lead time here
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, 4-414-002

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 - 3/8-16; 1.1250 in; Female; ABS, 4-416-002

DK-118

Price Range
$0.64 - $0.64

Stock Levels
218 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 - 5/16-18; 0.875 in; Female; Phenolic, 3035AU

DK-1206

Price Range
$1.36 - $1.36

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.500 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 0.875 in; Female; Phenolic, 3035JD

DK-1211

Price Range
$2.16 - $2.16

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.375 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 0.8750 in; Female; Phenolic, 3072

DK-604

Price Range
$1.16 - $1.16

Stock Levels
296 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 3/8-16; 0.8750 in; Female; Phenolic, 3073-B

DK-609

Price Range
$1.60 - $1.60

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Material
    Brass
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
496 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 - 5/16-18; 1.000 in; Female; Phenolic, 3040JN

DK-1213

Price Range
$2.76 - $2.76

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

DK-109

Price Range
$0.69 - $0.69

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 - 3/8-16; 1.0620 in; Female; ABS, 4-412-003

DK-116

Price Range
$1.30 - $1.30

Stock Levels
Request the lead time here
Attributes
  • Brand
    DimcoGray
  • Thread Size
    3/8-16
  • Thread Length
    0.625 in
  • Knob Material
    ABS
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 0.875 in; Female; Phenolic, 3035AX

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
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 0.750 in; Female; Phenolic, 3025GJ

DK-1210

Price Range
$1.87 - $1.87

Stock Levels
83 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    1/4-20
  • Thread Length
    0.500 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 3/8-16; 1.000 in; Female; Phenolic, 3040JM

DK-1214

Price Range
$2.69 - $2.69

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.500 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 1/4-20; 0.7200 in; Female; Phenolic, 3070-C

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
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 5/16-18; 0.8750 in; Female; Phenolic, 3072-A

DK-605

Price Range
$1.20 - $1.20

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.380 in
  • Knob Material
    Phenolic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 5/16-18; 0.830 in; Female; Thermoplastic, 76145

JCL-280

Price Range
$1.78 - $1.13

Stock Levels
1237 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.470 in
  • Knob Material
    Thermoplastic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 3/8-16; 1.770 in; Female; Thermoplastic, 761105

JCL-310

Price Range
$3.44 - $2.19

Stock Levels
80 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    3/8-16
  • Thread Length
    0.560 in
  • Knob Material
    Thermoplastic
  • Material
    Brass
Quick View
View Product >
Lobed Knob - 5/16-18; 0.830 in; Female; Thermoplastic, 76345

JCL-340

Price Range
$1.78 - $1.78

Stock Levels
25 In stock
Attributes
  • Brand
    Reid Select
  • Thread Size
    5/16-18
  • Thread Length
    0.470 in
  • Knob Material
    Thermoplastic
  • Material
    Brass
Quick View
View Product >