McMaster-Carr logo
    Filter by
    System of Measurement
    Diameter
    Attribute Image
    Fastener Head Type
    Industrial Info Compare
    Head Diameter
    End Shape
    End Type
    Pin Type
    Shaft Type
    Groove Type
    Tolerance Rating
    Minimum Hardness
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Groove Location
    Groove Coverage
    Specifications Met
    Double Shear Breaking Strength
    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)
    8 Products

    Fully Grooved Dowel Pins with Rounded Head

    The domed head creates a finished appearance, so these pins are often used to attach brackets, knobs, and machine plates. The grooves pinch shut when you press pins into a hole, creating tension to lock them in place.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Steel
    Image of Product. Front orientation. Dowel Pins. Standard Tolerance, Fully Grooved, Rounded Head.
    Zinc-Plated Carbon Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Nominal
    Max.
    Head
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Dia.
    Ht.
    Specs. Met
    Each
    Zinc-Plated Carbon Steel
    1/4"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.200000000000000
    3/8"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.20000000000000
    1/2"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.20000000000000
     

    Core Pins

    Mold plastic around these pins to form small holes, or use them to perforate parts. They have a flat head to fit into a counterbored hole. Pins can be machined to fit your application. They're precision-ground to tight tolerances.
    M2 High-Speed Tool SteelAbout M2 High-Speed Tool Steel
    Image of Product. Front orientation. Core Pins. Core Pins.
    M2 high-speed tool steel pins resist wear and stay sharp at high temperatures.
    Head
    Each
    Dia.
    Dia.
    Tolerance
    Dia.
    Ht.
    Min.
    Hardness
    1-9
    10-99
    100-Up
    2 1/2" Long
    0.096"0" to 0.0002"5/32"3/32"Rockwell C60000000000000000000000000
     
    4" Long
    0.096"0" to 0.0003"5/32"3/32"Rockwell C60000000000000000000000000
     
    6" Long
    0.096"0" to 0.0003"5/32"3/32"Rockwell C60000000000000000000000000
     

    Flush Mount-Head Core Pins

    Image of Product. Front orientation. Core Pins. Flush Mount-Head Core Pins.
    A 60° beveled head fits into a countersunk hole. Mold plastic around these pins to form small holes, or use them to perforate parts. Also known as perforator, mold, forged, quill, and pilot pins, they can be machined to fit your application. Pins are precision-ground to tight tolerances.
    M2 High-Speed Tool SteelAbout M2 High-Speed Tool Steel
    M2 high-speed tool steel pins resist wear and stay sharp at high temperatures.
    Head
    Dia.
    Dia.
    Tolerance
    Dia.
    Ht.
    Min.
    Hardness
    Countersink
    Angle
    Each
    2 1/2" Long
    0.096"0" to 0.0003"0.173"0.068"Rockwell C6060°
    		000000000000000
     
    4" Long
    0.096"0" to 0.0003"0.173"0.068"Rockwell C6060°
    		00000000000000
     
    back to top