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    61 Products

    Machinable-Hub Knobs

    Image of Product. Style 1. Front orientation. Style 1. Machinable-Hub Knobs, Knurled-Head Grip.
    Image of Product. Style 2. Front orientation. Style 2. Machinable-Hub Knobs, Ribbed Grip.
    Image of Product. Style 3. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 3.
    Image of Product. Style 4. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 4.

    Style 1

    Style 2

    Style 3

    Style 4

    Image of Product. Style 5. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 5.
    Image of Product. Style 6. Front orientation. Five-Arm Grip. Machinable-Hub Knobs, Style 6.
    Image of Product. Style 7. Front orientation. Style 7. Machinable-Hub Knobs, Six-Arm Grip.
    Image of Product. Style 8. Front orientation. Style 8. Machinable-Hub Knobs, Eight-Arm Grip.

    Style 5

    Style 6

    Style 7

    Style 8

    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 1—Knurled-Head Grip
    Image of Product. Style 1. Front orientation. Style 1. Machinable-Hub Knobs, Knurled-Head Grip.

    Style 1

    Black-Oxide 1215 Carbon Steel—Steel knobs are stronger than iron. They have a black-oxide finish for mild rust resistance.
    303 Stainless Steel—303 stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
    Brass—Brass knobs have good corrosion resistance and are nonmagnetic.
    6061 Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Black-Oxide 1215 Carbon Steel
    3/4"1/4"1/2"3/8"00000000000000000
    1"1/4"5/8"1/2"000000000000000
    1 1/2"5/16"3/4"11/16"000000000000000
    2"3/8"1"3/4"000000000000000
    2 1/2"9/16"1 1/2"15/16"0000000000000000
    3"5/8"1 3/4"1 1/8"00000000000000000
     
    303 Stainless Steel
    3/4"1/4"1/2"3/8"0000000000000000
    1"1/4"5/8"1/2"0000000000000000
    1"3/8"1/2"7/16"00000000000000000
    1 1/2"5/16"3/4"11/16"000000000000000000
    2"3/8"1"3/4"000000000000000000
    2"9/16"13/16"9/16"00000000000000000
    2 1/2"9/16"1 1/2"15/16"000000000000000000
    3"5/8"1 3/4"1 1/8"000000000000000000
    3"11/16"1 1/4"9/16"00000000000000000
     
    Brass
    3/4"1/4"1/2"3/8"000000000000000
    1"1/4"5/8"1/2"000000000000000
    1 1/2"5/16"3/4"11/16"00000000000000000
    2"3/8"1"3/4"00000000000000000
     
    6061 Aluminum
    1"3/8"1/2"7/16"000000000000000
    2"9/16"13/16"9/16"00000000000000000
    3"11/16"1 1/4"9/16"00000000000000000
     
    Style 2—Ribbed Grip
    Image of Product. Style 2. Front orientation. Style 2. Machinable-Hub Knobs, Ribbed Grip.

    Style 2

    Phenolic—Phenolic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    Temp. Range,
    ° F
    1-9
    10-Up
    Black Phenolic
    1 1/4"3/8"5/8"3/8"-30 to 40000000000000000000
    1 3/4"3/8"3/4"3/8"-30 to 400000000000000000
     
    Style 3—Four-Arm Grip
    Image of Product. Style 3. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 3.

    Style 3

    Brass—Brass knobs have good corrosion resistance and are nonmagnetic.
    6061 Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Brass
    1"3/8"1/2"1/2"00000000000000000
    1 1/2"1/2"5/8"3/8"00000000000000000
    2"1/2"13/16"1/2"00000000000000000
     
    6061 Aluminum
    1"3/8"1/2"1/2"0000000000000000
    1 1/2"1/2"5/8"3/8"0000000000000000
    2"1/2"13/16"1/2"0000000000000000
    2 1/2"9/16"1"9/16"0000000000000000
    3"5/8"1 1/4"5/8"000000000000000000
     
    Style 4—Four-Arm Grip
    Image of Product. Style 4. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 4.

    Style 4

    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Iron
    1 1/8"5/16"9/16"3/8"00000000000000000
    1 1/2"7/16"5/8"9/16"000000000000000
    2"7/16"3/4"9/16"000000000000000
    2 1/2"1/2"1"1 3/4"00000000000000000
    2 9/16"1/2"1 1/8"1"000000000000000
     
    Style 5—Four-Arm Grip
    Image of Product. Style 5. Front orientation. Four-Arm Grip. Machinable-Hub Knobs, Style 5.

    Style 5

    319 Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    319 Aluminum
    1 1/4"5/16"9/16"9/16"00000000000000000
    1 1/2"3/8"11/16"11/16"000000000000000
    2 1/8"1/2"7/8"15/16"000000000000000
    3"11/16"1 3/8"1 1/4"000000000000000
     
    Style 6—Five-Arm Grip
    Image of Product. Style 6. Front orientation. Five-Arm Grip. Machinable-Hub Knobs, Style 6.

    Style 6

    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Iron
    3"1/2"1 1/4"1 1/4"0000000000000000000
    3 1/4"1/2"1 1/2"1 1/4"00000000000000000
     
    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"00000000000000000
    2"1/2"7/8"1/2"000000000000000
    2"1/2"7/8"1 1/2"0000000000000000
    2 3/4"1/2"1 1/4"3/4"00000000000000000
    2 3/4"1/2"1 1/4"1 1/2"00000000000000000
    3 1/2"5/8"1 5/8"7/8"00000000000000000
     
    319 Aluminum
    1 1/2"1/2"3/4"7/8"0000000000000000
    2"3/4"1"7/8"0000000000000000
     
    Style 8—Eight-Arm Grip
    Image of Product. Style 8. Front orientation. Style 8. Machinable-Hub Knobs, Eight-Arm Grip.

    Style 8

    319 Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    319 Aluminum
    3 1/2"3/4"1 1/4"1 1/8"000000000000000000
     

    Machinable-Hub Knobs with Handle

    Image of Product. Front orientation. Knobs. Machinable-Hub Knobs with Handle.
    A handle makes these knobs easy to turn. 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.
    Knurled-Head Grip
    303 Stainless Steel—303 stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
    6061 Aluminum—6061 aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Head
    Hub
    Handle
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    Lg.
    Material
    1-9
    10-Up
    303 Stainless Steel
    2"9/16"13/16"9/16"1 9/32"Chrome-Plated Brass0000000000000000000
    3"9/16"1 1/4"11/16"1 1/2"Chrome-Plated Brass00000000000000000
     
    6061 Aluminum
    2"9/16"13/16"9/16"1 1/4"Chrome-Plated Brass00000000000000000
    3"11/16"1 1/4"9/16"1 1/2"Chrome-Plated Brass00000000000000000
     

    Palm-Grip Machinable-Hub Knobs

    Image of Product. Front orientation. Knobs. Palm-Grip Machinable-Hub Knobs.
    The domed top allows you to firmly hold these knobs in the palm of your hand. Mill specific holes or keyways in the hub to meet your specifications, or weld in place. Use these knobs to position, tighten, and hold fixtures, equipment, and machinery. Made of aluminum, all have mild corrosion resistance, are lightweight, and are nonmagnetic.
    Knurled-Head Grip
    Head
    Hub
    Each
    Dia.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    6061 Aluminum
    1"1/2"5/8"7/16"0000000000000000000
    2"11/16"1"1/2"00000000000000000
    2 1/4"3/4"1 1/4"5/8"00000000000000000
     

    Machinable-Hub Bar Knobs

    Image of ProductInUse. Front orientation. Contains Annotated. Knobs. Machinable-Hub Bar Knobs.
    Mill specific holes or keyways in the hub to meet your specifications, or weld in place. Insert a bar between the arms and twist. The bar provides maximum leverage to tighten knobs securely. Made of iron, these knobs have a zinc-plated finish for corrosion resistance.
    Four-Arm Grip
    Head
    Hub
    Each
    For Max.
    Bar Dia.
    Wd.
    Ht.
    Dia.
    Ht.
    1-9
    10-Up
    Zinc-Plated Iron
    7/16"2"1 1/4"1 1/4"7/8"000000000000000000
    11/16"2 1/2"1 7/16"1 1/2"15/16"0000000000000000
     
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