McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    150 Products

    Flanged Wing Nuts
    3D CAD models available

    The wings give you extra leverage for a tight fit, while the flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts. They are the easiest nuts to twist on and off, so they are ideal for fastening parts that need to be frequently disassembled, such as access panels and covers.
    Zinc
    Image of Product. Front orientation. Thumb Nuts. Flanged Wing Nuts.
    Zinc—Zinc nuts have better corrosion resistance than steel to withstand occasional exposure to moisture. However, they're not as strong.
    Black Zinc—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They have better corrosion resistance than steel to withstand occasional exposure to moisture, however, they're not as strong.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Zinc
    6-32
    3/4"23/64"1000000000000000
    8-32
    3/4"23/64"100000000000000
    8-32
    7/8"7/16"2500000000000000
    10-24
    7/8"7/16"2500000000000000
    10-32
    3/4"25/64"100000000000000
    10-32
    7/8"7/16"2500000000000000
    1/4"-20
    1"1/2"2500000000000000
    1/4"-20
    1 1/8"37/64"2500000000000000
    5/16"-18
    1"1/2"100000000000000
    5/16"-18
    1 1/8"37/64"2500000000000000
    3/8"-16
    1 1/8"37/64"2500000000000000
     
    Black Zinc
    6-32
    3/4"23/64"1000000000000000
    8-32
    3/4"23/64"1000000000000000
    10-24
    7/8"29/64"1000000000000000
    10-32
    3/4"23/64"1000000000000000
    10-32
    7/8"29/64"1000000000000000
    1/4"-20
    1"1/2"50000000000000
    1/4"-20
    1 1/4"37/64"500000000000000
    5/16"-18
    1"1/2"500000000000000
    5/16"-18
    1 1/4"37/64"500000000000000
    3/8"-16
    1 1/4"37/64"500000000000000
     

    Flanged Knurled-Head Thumb Nuts
    3D CAD models available

    Image of Attribute. Front orientation. Contains Annotated. Thumb Nuts. Flanged Knurled-Head Thumb Nuts.
    The slip-resistant head is easy to grip, while the flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.
    Passivated 18-8 Stainless Steel—With an added layer of protection, these nuts stand up to strong acids and other harsh chemicals.
    Super-Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant thumb nuts, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals.
    Collar
    Thread Size
    Dia.
    Ht.
    Head
    Dia.
    Ht.
    Threading
    Thread
    Dp.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0-80
    5/32"1/8"7/32"1/4"Fully Threaded__100000000000000
    1-72
    5/32"1/8"7/32"1/4"Fully Threaded__10000000000000
    2-56
    3/16"1/8"1/4"1/4"Fully Threaded__10000000000000
    3-48
    1/4"1/8"5/16"1/4"Fully Threaded__10000000000000
    4-40
    1/4"1/8"5/16"1/4"Fully Threaded__10000000000000
    4-40
    1/4"1/8"5/16"5/16"Partially Threaded7/32"10000000000000
    5-40
    1/4"1/8"5/16"1/4"Fully Threaded__10000000000000
    6-32
    11/32"5/32"3/8"9/32"Fully Threaded__10000000000000
    8-32
    3/8"5/32"7/16"9/32"Fully Threaded__10000000000000
    8-32
    3/8"5/32"7/16"3/8"Partially Threaded1/4"10000000000000
    10-24
    13/32"3/16"1/2"11/32"Fully Threaded__10000000000000
    10-32
    13/32"3/16"1/2"11/32"Fully Threaded__10000000000000
    12-24
    13/32"3/16"1/2"11/32"Fully Threaded__10000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"Fully Threaded__10000000000000
    1/4"-20
    15/32"7/32"9/16"1/2"Partially Threaded5/16"100000000000000
    1/4"-28
    15/32"7/32"9/16"3/8"Fully Threaded__10000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"Fully Threaded__10000000000000
    5/16"-24
    17/32"7/32"5/8"13/32"Fully Threaded__10000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded__10000000000000
    3/8"-24
    5/8"1/4"3/4"15/32"Fully Threaded__100000000000000
    7/16"-14
    11/16"5/16"1"17/32"Fully Threaded__100000000000000
    7/16"-20
    11/16"5/16"1"17/32"Fully Threaded__100000000000000
    1/2"-13
    3/4"3/8"1"5/8"Fully Threaded__100000000000000
    M1.6 × 0.35 mm4 mm4 mm6 mm6 mmFully Threaded__10000000000000
    M1.6 × 0.35 mm4 mm4 mm8 mm6 mmFully Threaded__10000000000000
    M2 × 0.4 mm4 mm2 mm6 mm4 mmFully Threaded__10000000000000
    M2 × 0.4 mm4 mm4 mm8 mm6 mmFully Threaded__10000000000000
    M2.5 × 0.45 mm4 mm5 mm12 mm7 mmFully Threaded__10000000000000
    M2.5 × 0.45 mm5 mm3 mm6 mm6 mmFully Threaded__10000000000000
    M2.5 × 0.45 mm6 mm3 mm8 mm6 mmFully Threaded__10000000000000
    M3 × 0.5 mm6 mm3 mm8 mm6 mmFully Threaded__10000000000000
    M3 × 0.5 mm6 mm5 mm16 mm8 mmFully Threaded__10000000000000
    M3.5 × 0.6 mm9 mm4 mm10 mm7 mmFully Threaded__10000000000000
    M4 × 0.7 mm8 mm6 mm12 mm10 mmFully Threaded__10000000000000
    M4 × 0.7 mm8 mm6 mm20 mm10 mmFully Threaded__100000000000000
    M4 × 0.7 mm9 mm4 mm10 mm7 mmFully Threaded__10000000000000
    M5 × 0.8 mm10 mm7.5 mm16 mm12 mmFully Threaded__10000000000000
    M5 × 0.8 mm10 mm7.5 mm24 mm12 mmFully Threaded__100000000000000
    M5 × 0.8 mm11 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M6 × 1 mm12 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M6 × 1 mm12 mm10 mm20 mm15 mmFully Threaded__100000000000000
    M6 × 1 mm12 mm10 mm24 mm15 mmFully Threaded__100000000000000
    M8 × 1.25 mm16 mm6 mm19 mm12 mmFully Threaded__10000000000000
    M8 × 1.25 mm16 mm12 mm24 mm18 mmFully Threaded__100000000000000
    M8 × 1.25 mm16 mm12 mm31.8 mm18 mmFully Threaded__100000000000000
    M10 × 1.5 mm20 mm15 mm26 mm23 mmFully Threaded__100000000000000
    M10 × 1.5 mm20 mm15 mm31.8 mm23 mmFully Threaded__100000000000000
    M12 × 1.75 mm24 mm20 mm31.8 mm30 mmFully Threaded__100000000000000
     
    Black-Oxide 18-8 Stainless Steel
    2-56
    3/16"1/8"1/4"1/4"Fully Threaded__10000000000000
    4-40
    1/4"1/8"5/16"1/4"Fully Threaded__10000000000000
    6-32
    11/32"5/32"3/8"9/32"Fully Threaded__10000000000000
    8-32
    3/8"5/32"7/16"9/32"Fully Threaded__10000000000000
    10-24
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    10-32
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"Fully Threaded__100000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"Fully Threaded__100000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded__100000000000000
    M2.5 × 0.45 mm5 mm3 mm6 mm6 mmFully Threaded__10000000000000
    M3 × 0.5 mm6 mm3 mm8 mm6 mmFully Threaded__10000000000000
    M3.5 × 0.6 mm9 mm4 mm10 mm7 mmFully Threaded__10000000000000
    M4 × 0.7 mm9 mm4 mm10 mm7 mmFully Threaded__10000000000000
    M5 × 0.8 mm11 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M6 × 1 mm12 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M8 × 1.25 mm16 mm6 mm19 mm12 mmFully Threaded__100000000000000
     
    Passivated 18-8 Stainless Steel
    6-32
    11/32"5/32"3/8"9/32"Fully Threaded__10000000000000
    8-32
    3/8"5/32"7/16"9/32"Fully Threaded__10000000000000
    10-24
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    10-32
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"Fully Threaded__100000000000000
    1/4"-28
    15/32"7/32"9/16"3/8"Fully Threaded__100000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"Fully Threaded__100000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded__100000000000000
    3/8"-24
    5/8"1/4"3/4"15/32"Fully Threaded__100000000000000
    7/16"-14
    11/16"5/16"1"17/32"Fully Threaded__100000000000000
    1/2"-13
    3/4"3/8"1"5/8"Fully Threaded__100000000000000
    M2.5 × 0.45 mm5 mm3 mm6 mm6 mmFully Threaded__10000000000000
    M3 × 0.5 mm6 mm3 mm8 mm6 mmFully Threaded__10000000000000
    M4 × 0.7 mm9 mm4 mm10 mm7 mmFully Threaded__10000000000000
    M5 × 0.8 mm11 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M6 × 1 mm12 mm5 mm13 mm9 mmFully Threaded__10000000000000
    M8 × 1.25 mm16 mm6 mm19 mm12 mmFully Threaded__100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    4-40
    1/4"1/8"5/16"1/4"Fully Threaded__100000000000000
    6-32
    11/32"5/32"3/8"9/32"Fully Threaded__100000000000000
    8-32
    3/8"5/32"7/16"9/32"Fully Threaded__100000000000000
    10-24
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    10-32
    13/32"3/16"1/2"11/32"Fully Threaded__100000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"Fully Threaded__100000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"Fully Threaded__100000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded__100000000000000
    1/2"-13
    13/16"1/4"1"1/2"Fully Threaded__100000000000000
     
    Brass
    Brass—With a warm, polished look, these nuts are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. It is also softer than other metals, so it's easier to thread together.
    Zinc-Plated Brass—The zinc plating offers better corrosion resistance than plain brass to stand up to solvents and mild chemicals.
    Collar
    Thread Size
    Dia.
    Ht.
    Head
    Dia.
    Ht.
    Threading
    Pkg.
    Qty.
    Pkg.
    Brass
    0-80
    5/32"1/8"7/32"1/4"Fully Threaded100000000000000
    1-72
    3/16"1/8"1/4"1/4"Fully Threaded10000000000000
    2-56
    3/16"1/8"1/4"1/4"Fully Threaded10000000000000
    3-48
    1/4"1/8"5/16"1/4"Fully Threaded10000000000000
    4-40
    5/16"9/64"3/8"1/4"Fully Threaded250000000000000
    5-40
    11/32"5/32"3/8"9/32"Fully Threaded10000000000000
    6-32
    5/16"9/64"3/8"1/4"Fully Threaded2500000000000000
    8-32
    3/8"3/16"7/16"5/16"Fully Threaded2500000000000000
    10-24
    7/16"13/64"1/2"21/64"Fully Threaded100000000000000
    10-32
    7/16"13/64"1/2"21/64"Fully Threaded100000000000000
    12-24
    1/2"13/64"9/16"11/32"Fully Threaded100000000000000
    1/4"-20
    9/16"7/32"5/8"3/8"Fully Threaded1000000000000000
    1/4"-28
    15/32"7/32"9/16"3/8"Fully Threaded10000000000000
    5/16"-18
    39/64"15/64"11/16"13/32"Fully Threaded1000000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded10000000000000
     
    Zinc-Plated Brass
    8-32
    3/8"5/32"7/16"9/32"Fully Threaded100000000000000
    10-24
    13/32"3/16"1/2"11/32"Fully Threaded100000000000000
    10-32
    13/32"3/16"1/2"11/32"Fully Threaded100000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"Fully Threaded100000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"Fully Threaded100000000000000
    3/8"-16
    5/8"1/4"3/4"15/32"Fully Threaded100000000000000
    M2.5 × 0.45 mm5 mm3 mm6 mm6 mmFully Threaded10000000000000
    M3 × 0.5 mm6 mm3 mm8 mm6 mmFully Threaded10000000000000
    M3.5 × 0.6 mm9 mm4 mm10 mm7 mmFully Threaded10000000000000
    M4 × 0.7 mm9 mm4 mm10 mm7 mmFully Threaded10000000000000
    M5 × 0.8 mm11 mm5 mm13 mm9 mmFully Threaded10000000000000
    M6 × 1 mm12 mm5 mm13 mm9 mmFully Threaded10000000000000
    M8 × 1.25 mm16 mm6 mm19 mm12 mmFully Threaded10000000000000
     

    Hex-Head Thumb Nuts
    3D CAD models available

    Apply extra torque to these nuts to prevent accidental loosening. Twist them on by hand, then crank with a wrench for a tight fit. The flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts.
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Thumb Nuts. Hex-Head Thumb Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Collar
    Thread
    Size
    Dia.
    Ht.
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    4-40
    1/4"1/8"5/16"1/4"100000000000000
    6-32
    11/32"5/32"3/8"9/32"10000000000000
    8-32
    3/8"5/32"7/16"9/32"10000000000000
    10-32
    13/32"3/16"1/2"11/32"10000000000000
    1/4"-20
    15/32"7/32"9/16"3/8"100000000000000
    5/16"-18
    17/32"7/32"5/8"13/32"100000000000000
     

    Flanged-Hex Slide-Adjust Push-Button Nuts
    3D CAD models available

    Image of Product. Front orientation. Push-Button Nuts. Flanged-Hex Slide-Adjust Push-Button Nuts.
    These nuts have a flange that distributes the load over a large area and reduces stress where the nut meets the material surface. Push the button to disengage the threads for quick adjustments on threaded rods. They can be tightened with a wrench once positioned by hand. A black-oxide finish provides corrosion resistance in dry environments.
    Flange
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Thk.
    Each
    Black-Oxide Steel
    1/4"-20
    7/8"5/8"1"0.13"000000000000000
    5/16"-18
    1"13/16"1 1/4"0.19"00000000000000
    3/8"-16
    1"13/16"1 1/4"0.19"00000000000000
    1/2"-13
    1 3/8"1 1/8"1 5/8"0.25"00000000000000
    5/8"-11
    1 3/8"1 1/8"1 5/8"0.25"00000000000000
     
    back to top