McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Size
    Industrial Info Compare
    Drive Style
    Industrial Info Compare
    Fastener Head Type
    Industrial Info Compare
    Thread Spacing
    Industrial Info Snippet
    Head Diameter
    Attribute Image
    Rounded Head Style
    Tip Type
    Head Height
    Attribute Image
    Thread Type
    Rounded Head Profile
    Thread Direction
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Tensile Strength
    Industrial Info Snippet
    Sold As
    Drive Size
    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)
    9 Products

    Stainless Steel Button Head Hex-Drive Screws

    Image of Product. Front orientation. Rounded Head Screws. Stainless Steel Button Head Hex-Drive Screws.
    These button head screws won't corrode from moisture and chemicals, but they aren't as strong as alloy steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    8-40
    1/4"0.312"0.087"Fully Threaded70,000192949A42700000
    3/8"0.312"0.087"Fully Threaded70,000192949A4280000
    1/2"0.312"0.087"Fully Threaded70,000192949A4290000
     

    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
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Certificate Type
    Each
    18-8 Stainless Steel
     
    8-40
    1/2"1/4"1/2"Fully Threaded80,000Material Certificate
    		91746A24100000
    3/4"1/4"1/2"Fully Threaded80,000—91746A2440000
    1"1/4"1/2"Fully Threaded80,000—91746A24700000
     

    Slotted Stainless Steel Narrow-Profile Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Slotted Stainless Steel Narrow-Profile Knurled-Head Thumb Screws.
    Fasten these slim, corrosion-resistant screws by driver and by hand in even the tightest of spaces. Turn these screws with a slotted driver in cramped spaces where fingers can't fit. When twisting by hand, the knurled texture of the screw head creates 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
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel
     
    8-40
    1/2"1/4"1/2"Fully Threaded80,00091746A963000000
    3/4"1/4"1/2"Fully Threaded80,00091746A96600000
    1"1/4"1/2"Fully Threaded80,00091746A96900000
     
    back to top