McMaster-Carr logo
    Filter by
    Product Family
    System of Measurement
    Fastener Head Type
    Thumb Screw Head Profile
    Industrial Info Compare
    Thread Pitch
    Industrial Info Snippet
    Attribute Image
    Grip Style
    Thread Direction
    Thread Fit
    Industrial Info Snippet
    Attribute Image
    Tip Type
    Thread Spacing
    Industrial Info Snippet
    Thread Type
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Tensile Strength
    Industrial Info Snippet
    Collar Height
    Attribute Image
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    Help me decide (beta)
    15 Products

    Thumb Screw Head Profile

    Thumb Screw Head Profile

    Stainless Steel Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Stainless Steel Knurled-Head Thumb Screws.
    Fasten panels and covers exposed to moisture and chemicals with these corrosion-resistant thumb screws. The knurled texture of the head creates extra grip as you twist.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head,
    mm
    Lg.,
    mm
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel
     
    M3.5 × 0.6 mm
    885Partially Threaded90,00092545A12700000
    985Partially Threaded90,00092545A1310000
    1185Partially Threaded90,00092545A1350000
    1385Partially Threaded90,00092545A1390000
     

    Stainless Steel Raised-Profile Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Stainless Steel Raised-Profile Knurled-Head Thumb Screws.
    Image of Attribute. Front orientation. Thumb Screws. Stainless Steel Raised-Profile Knurled-Head Thumb Screws.

    The raised head gives your fingers extra space to grab these corrosion-resistant thumb screws, even with oily fingers. The knurled texture creates extra grip as you twist. Install these thumb screws on panels and covers for routinely serviced equipment, such as HVAC access doors and machine safety shields.
    Length is measured from under the collar.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head,
    mm
    Collar,
    mm
    Lg.,
    mm
    Dia.
    Ht.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Certificate Type
    Each
    18-8 Stainless Steel
     
    M3.5 × 0.6 mm
    6122.565Fully Threaded80,000—92558A61100000
    8122.565Fully Threaded80,000—92558A6120000
    10122.565Fully Threaded80,000Material Certificate
    		92558A6130000
    12122.565Fully Threaded80,000—92558A6140000
    16122.565Fully Threaded80,000—92558A6150000
     

    Stainless Steel Narrow-Profile Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Stainless Steel Narrow-Profile Knurled-Head Thumb Screws.
    The slim head on these corrosion-resistant thumb screws won't snag plugs and cords in electrical panels and other tight spaces. The narrow width can make them harder to turn than screws with wider heads. However, the knurled texture gives your fingers extra grip.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head,
    mm
    Lg.,
    mm
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel
     
    M3.5 × 0.6 mm
    194.89.5Fully Threaded80,00092545A14000000
    254.89.5Fully Threaded80,00092545A1410000
    314.89.5Fully Threaded80,00092545A1420000
     

    Stainless Steel Flared-Collar Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Stainless Steel Flared-Collar Knurled-Head Thumb Screws.
    Image of Attribute. Front orientation. Contains Annotated. Thumb Screws. Stainless Steel Flared-Collar Knurled-Head Thumb Screws.
    A flared collar leaves more space for your fingers to grasp these corrosion-resistant thumb screws. It also serves as a decorative finish. The knurled texture on the head creates extra grip as you twist.
    Length is measured from under the collar.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head,
    mm
    Collar,
    mm
    Lg.,
    mm
    Dia.
    Ht.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel
     
    M3.5 × 0.6 mm
    109.53.574Fully Threaded80,00099607A31100000
    129.53.574Fully Threaded80,00099607A3120000
    169.53.574Fully Threaded80,00099607A3130000
     
    back to top