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    92 Products

    Threaded Through-Hole Knobs

    Image of Product. Style 11. Front orientation. Style 11. Threaded Through-Hole Knobs, Six-Arm Grip.
    Image of Product. Style 12. Front orientation. Style 12. Threaded Through-Hole Knobs, Six-Arm Grip.
    Image of Product. Style 13. Front orientation. Style 13. Threaded Through-Hole Knobs, Six-Arm Grip.

    Style 11

    Style 12

    Style 13

    Long shafts can thread through these knobs for mounting versatility. The knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
    Style 11—Six-Arm Grip
    Image of Product. Style 11. Front orientation. Style 11. Threaded Through-Hole Knobs, Six-Arm Grip.

    Style 11

    Thread
    Head
    Hub
    Each
    Sz.
    Dp.
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Iron
    3/8"-16
    1"2"1/2"7/8"1/2"6042K161000000000000
    3/8"-16
    2"1 1/2"1/2"7/8"1 1/2"6042K710000000000
    3/8"-16
    2"2"1/2"7/8"1 1/2"6042K720000000000
    1/2"-13
    1 1/4"2 3/4"1/2"1 1/4"3/4"6042K730000000000
    1/2"-13
    2"2 3/4"1/2"1 1/4"1 1/2"6042K740000000000
    3/4"-10
    1 1/2"3 1/2"5/8"1 5/8"7/8"6042K750000000000
     
    Style 12—Six-Arm Grip
    Image of Product. Style 12. Front orientation. Style 12. Threaded Through-Hole Knobs, Six-Arm Grip.

    Style 12

    Thread
    Head
    Hub
    Each
    Sz.
    Dp.
    Dia.
    Ht.
    Dia.
    Ht.
    Set Screw
    Thread Size
    Set Screw
    Included
    1-9
    10-Up
    Iron
    3/8"-16
    2"2"1/2"7/8"1 1/2"1/4"-20
    Yes3948T21000000000000
    1/2"-13
    1 1/4"2 3/4"1/2"1 1/4"3/4"1/4"-20
    Yes3948T220000000000
    1/2"-13
    2"2 3/4"1/2"1 1/4"1 1/2"1/4"-20
    Yes3948T230000000000
    3/4"-10
    1 1/2"3 1/2"5/8"1 5/8"7/8"1/4"-20
    Yes3948T240000000000
     
    Style 13—Six-Arm Grip
    Image of Product. Style 13. Front orientation. Style 13. Threaded Through-Hole Knobs, Six-Arm Grip.

    Style 13

    Phenolic—Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Phenolic has good scratch resistance.
    Thread
    Head,
    mm
    Hub,
    mm
    Each
    Sz.
    Dp.,
    mm
    Dia.
    Ht.
    Dia.
    Ht.
    Insert
    Material
    Temp. Range,
    ° F
    1-9
    10-Up
    Black Phenolic
    M6 × 1 mm1840152113Brass0 to 2404273T810000000000
    M8 × 1.25 mm1840152113Brass0 to 2404273T8200000000
    M8 × 1.25 mm1850172415Brass0 to 2404273T8400000000
    M10 × 1.5 mm1840152113Brass0 to 2404273T8300000000
    M10 × 1.5 mm1850172415Brass0 to 2404273T8500000000
    M12 × 1.75 mm1850172415Brass0 to 2404273T8600000000
    M12 × 1.75 mm2560202815Brass0 to 2404273T8700000000
    M16 × 2 mm2560202815Brass0 to 2404273T88000000000
    M16 × 2 mm2570213221Brass0 to 2404273T890000000000
     

    Screw-Head Mount Knob Assortments

    Image of Product. Inch Assortment. Back orientation. Contains Annotated. Knobs. Screw-Head Mount Knob Assortments, 295 Pieces.
    Image of Product. Metric Assortment. Back orientation. Contains Annotated. Knobs. Screw-Head Mount Knob Assortments, 260 Pieces.

    Inch Assortment

    Metric Assortment

    Keep a convenient selection of knobs on hand. To build a custom knob or thumb screw, pair one of these knobs with a socket head screw. Press the knob and screw together using a bench vise or an arbor press. Use these knobs to provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery. Made of plastic, they resist oil, grease, and solvents.
    Total No.
    of Pieces
    Grip Style
    Number
    of Pieces
    For Screw Size
    Temp. Range,
    ° F
    Each
    Black Acetal
     
    For Socket Head Screws
    295Knurled Head
    Single Arm
    Two Arm
    Six Arm
    140
    15
    80
    60
    No. 4, No. 6, No. 8, No. 10, 1/4", 5/16"
    No. 10, 1/4", 5/16"
    No. 10, 1/4", 5/16", 3/8"
    1/4", 5/16", 3/8"
    35 to 18091165A8800000000
    260Knurled Head
    Two Arm
    Six Arm
    120
    80
    60
    M3, M4, M5, M6, M8
    M5, M6, M8, M10
    M6, M8, M10
    35 to 18091165A440000000
     

    Six-Arm Plastic-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Six-Arm Plastic-Head Thumb Screws.
    These thumb screws have the largest head of any we offer. They're often found on stops, plates, and jigs. The six arms leave extra space to fit your fingers for easy twisting. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won't rust.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Temp. Range,
    ° F
    Color
    Threading
    Tensile
    Strength
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Acetal Head
     
    1/4"-20
    3/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A801000000
    1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80300000
    5/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80500000
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80700000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80900000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A81100000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A81300000
    1 1/2"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated1091185A81500000
    1 3/4"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated591185A8170000
    2"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated591185A8190000
     
    1/4"-28
    3/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82100000
    1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82300000
    5/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82500000
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82700000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82900000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A83100000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A83300000
     
    5/16"-18
    1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated1091185A83500000
    5/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8370000
    3/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8390000
    7/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8410000
    1"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8430000
    1 1/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8450000
    1 1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8470000
     
    5/16"-24
    1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8490000
    5/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8510000
    3/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A85300000
    7/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8550000
    1"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8570000
    1 1/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8590000
    1 1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8610000
     
    3/8"-16
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8630000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8650000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8670000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A86900000
    1 1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A87100000
     
    M6 × 1 mm
    10 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50100000
    12 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50500000
    16 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50900000
    20 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A51300000
    25 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A51700000
     
    M8 × 1.25 mm
    12 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6020000
    16 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6060000
    20 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6100000
    25 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6140000
     

    Screw-Head Mount Knobs

    Image of Product. Style 7 (Front View). Front orientation. Style 7. Screw-Head Mount Knobs, Six-Arm Grip.
    Image of Product. Style 7 (Back View). Back orientation. Style 7. Screw-Head Mount Knobs, Six-Arm Grip.

    Style 7

    (Front

    View)

    Style 7

    (Back View)

    To build a custom knob or thumb screw, pair one of these knobs with a hex or socket head screw and press the knob and screw together. All of these knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery. Made of plastic, they resist oil, grease, and solvents. Use color to identify equipment controls and components at a glance.
    Style 7—Six-Arm Grip
    Image of Product. Style 7 (Front View). Front orientation. Style 7. Screw-Head Mount Knobs, Six-Arm Grip.
    Image of Product. Style 7 (Back View). Back orientation. Style 7. Screw-Head Mount Knobs, Six-Arm Grip.

    Style 7

    (Front

    View)

    Style 7

    (Back View)

    Head
    For Screw
    Size
    Dia.
    Ht.
    Temp. Range,
    ° F
    Choose a Color
    Pkg.
    Qty.
    Pkg.
    Acetal—For Socket Head Screws
    1/4"
    1 1/2"15/32"35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1094052A04100000
    5/16"
    1 1/2"13/32"35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1094052A0430000
    3/8"
    1 1/2"15/32"35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1094052A0460000
    M6
    38 mm12.2 mm35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1091175A0710000
    M8
    38 mm10.4 mm35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1091175A0720000
    M10
    38 mm12.5 mm35 to 180
    Black
    ,
    Gray
    ,
    Red
    ,
    Yellow
    1091175A0730000
     

    Threaded-Hole Knobs

    Image of Product. Style 27. Front orientation. Six-Arm Grip. Threaded-Hole Knobs, Style 27.

    Style 27

    Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
    Style 27—Six-Arm Grip
    Image of Product. Style 27. Front orientation. Six-Arm Grip. Threaded-Hole Knobs, Style 27.

    Style 27

    Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Thread
    Head
    Hub
    Each
    Sz.
    Dp.
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Aluminum
    1/4"-20
    3/4"1 1/2"7/16"7/8"7/8"61515K2120000000000
    3/8"-16
    3/4"2"5/8"1"7/8"61515K22200000000
     

    Unthreaded-Hole Knobs

    Image of Product. Style 10. Front orientation. Style 10. Unthreaded-Hole Knobs, Six-Arm Grip.

    Style 10

    Tap custom threads or secure with a set screw to provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery.
    Style 10—Six-Arm Grip
    Image of Product. Style 10. Front orientation. Style 10. Unthreaded-Hole Knobs, Six-Arm Grip.

    Style 10

    Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Hole
    Head
    Hub
    Each
    Dia.
    Dp.
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Aluminum
    1/4"3/4"1 1/2"7/16"7/8"7/8"61515K2110000000000
    3/8"7/8"2"9/16"1"1"61515K22100000000
     

    Unthreaded Through-Hole Knobs

    Image of Product. Style 7. Front orientation. Style 7. Unthreaded Through-Hole Knobs, Six-Arm Grip.

    Style 7

    Create custom threads or secure with a set screw to provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery. Long shafts can pass through these knobs for mounting versatility.
    Style 7—Six-Arm Grip
    Image of Product. Style 7. Front orientation. Style 7. Unthreaded Through-Hole Knobs, Six-Arm Grip.

    Style 7

    Hole
    Head
    Hub
    Each
    Dia.
    Dp.
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Iron
    3/8"1"2"1/2"7/8"1/2"6042K162000000000000
    3/8"2"1 1/2"1/2"7/8"1 1/2"6042K510000000000
    3/8"2"2"1/2"7/8"1 1/2"6042K520000000000
    1/2"1 1/4"2 3/4"1/2"1 1/4"3/4"6042K530000000000
    1/2"2"2 3/4"1/2"1 1/4"1 1/2"6042K540000000000
    3/4"1 1/2"3 1/2"5/8"1 5/8"7/8"6042K550000000000
     

    Machinable-Hub Knobs

    Image of Product. Style 7. Front orientation. Style 7. Machinable-Hub Knobs, Six-Arm Grip.

    Style 7

    Mill specific holes or keyways in the hub to meet your specifications, or weld in place. These knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
    Style 7—Six-Arm Grip
    Image of Product. Style 7. Front orientation. Style 7. Machinable-Hub Knobs, Six-Arm Grip.

    Style 7

    319 Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Iron
    1 1/2"1/2"7/8"1 1/2"6042K310000000000
    2"1/2"7/8"1/2"6042K3600000000
    2"1/2"7/8"1 1/2"6042K32000000000
    2 3/4"1/2"1 1/4"3/4"6042K330000000000
    2 3/4"1/2"1 1/4"1 1/2"6042K340000000000
    3 1/2"5/8"1 5/8"7/8"6042K350000000000
     
    319 Aluminum
    1 1/2"1/2"3/4"7/8"61515K1100000000
    2"3/4"1"7/8"61515K1200000000
     

    Threaded-Stud Precise-Control Indicating Knobs

    Image of Product. Front orientation. Indicating Knobs. Threaded-Stud Precise-Control Indicating Knobs, Six-Arm Grip.

    Six-Arm Grip

    Mount these knobs into a threaded hole. Turn the knob to move the stud 0.005" per graduation and make precise adjustments. Secure with the included locknut. Made of acetal, these knobs resist oil, grease, and solvents.
    Head
    Stud
    Thread
    Size
    Dia.
    Ht.
    Lg.
    Material
    Temp. Range,
    ° F
    Features
    Each
    Six-Arm Grip
     
    Black Acetal
    1/4"-20
    1 1/2"1/2"3"Steel35 to 180Locknut93228A25000000
     

    Screw-Head Mount Precise-Control Indicating Knobs

    Image of Product. Front orientation. Indicating Knobs. Precise Control, Screw-Head Mount, Six-Arm Grip.

    Six-Arm

    Grip

    To build a custom precise-control knob or thumb screw, pair one of these knobs with a socket head screw. Press the knob and screw together using a bench vise or an arbor press. Then, turn the knob to move the screw 0.005" per graduation and make precise adjustments. Made of acetal, these knobs resist oil, grease, and solvents.
    Head
    For Thread
    Size
    Dia.
    Ht.
    For Screw
    Head Type
    Temp. Range,
    ° F
    Each
    Six-Arm Grip
     
    Black Acetal
    1/4"-20
    1 1/2"1/2"Socket
    35 to 18093228A50000000
     
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