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    7 Products

    Threaded Taper Pins

    Image of ProductInUse. Tighten the nut to draw the pin out of the hole.. Front orientation. Contains Annotated. Taper Pins. Threaded Taper Pins.

    Tighten the

    nut to draw

    the pin out of

    the hole.

    Threads on these pins stick out for easy removal from blind holes. Tighten the hex nut to draw the pin out. Often used for positioning components and securing assemblies, they taper at a uniform rate to fit in tapered holes. For a snug fit, use a tapered drill bit that matches the pin number for inch sizes or the small end diameter for metric sizes. They have slightly rounded edges to aid insertion.
    Inch
    Image of Product. Front orientation. Contains Annotated. Taper Pins. Threaded Taper Pins, Inch.
    Length for inch pins measures the unthreaded length of the pin.
    12L14 Carbon Steel—12L14 Carbon steel pins have good strength.
    ASME B18.8.2—Pins that meet ASME B18.8.2 specifications conform to ASME standards for material and dimensions.
    Breaking Strength—Breaking strength is measured as single shear, which is the force required to break the pin into two pieces.
    Lg.
    Small End
    Dia.
    Rate of
    Taper
    Thread
    Lg.
    Thread
    Size
    Min.
    Hardness
    Breaking
    Strength
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    12L14 Carbon Steel
     
    12 Taper Pin—1.03" Large End Diameter
    4"0.947"1:481 9/32"7/8"-14
    		Not RatedNot RatedASME B18.8.2192281A106000000
    6"0.905"1:481 9/32"7/8"-14
    		Not RatedNot RatedASME B18.8.2192281A10700000
    8"0.863"1:481 9/32"7/8"-14
    		Not RatedNot RatedASME B18.8.2192281A108000000
    10"0.822"1:481 9/32"7/8"-14
    		Not RatedNot RatedASME B18.8.2192281A10900000
     
    13 Taper Pin—1.239" Large End Diameter
    10"1.031"1:481 9/32"7/8"-14
    		Not RatedNot RatedASME B18.8.2192281A111000000
     

    Go/No-Go Threaded Plug Gauges with Handle

    Speed up thread tolerance checks—the handle on these gauges gives you a good grip to quickly thread and unthread go or no-go gauges. Use these gauges to make sure nuts, tapped holes, and other parts fall within tolerance. All are precisely manufactured to confirm thread fit. If the plug gauges wear down, you can insert new ones (not included) onto the taperlock handle.
    A part is within tolerance if it’s easy to thread the go gauge into the part but difficult to thread the no-go gauge more than two turns.
    Go/no-go gauges have both a go gauge on one end of the handle and a no-go gauge on the other to speed up tests. Go gauges check the minimum internal thread size. No-go gauges check the maximum internal thread size.
    Class X Gauge
    Image of Product. Double-Ended Taperlock Handle. Front orientation. Plug Gauges. Go/No-Go Threaded Plug Gauges with Handle.

    Double-Ended Taperlock

    Handle

    Calibration Certificate Traceable to NIST—Gauges with a calibration certificate traceable to NIST were calibrated in a lab. The certificate, sometimes called a test report or long-form certificate, details the tested measurements.
    For Class 2B Unified Standard Thread Fit—For inch threads, the higher the class number, the tighter the fit. Unified Standard Class 2B is standard and works for most applications.
    For Class 3B Unified Standard Thread Fit—The tightest fit for inch-sized threads. Unified Standard Class 3B fits completely flush in applications where parts need to stay in place, such as engines and suspension systems.
    For Thread Fit—Thread fit designates the tightness or looseness of mating threads.
    Thread
    Size
    Thread
    Type
    Pitch Dia.
    Tolerance
    Hardness
    Material
    Features
    Choose a Thread Fit
    Each
    Go/No-Go Gauges
    7/8"-14
    		UNF
    		-0.0003" to 0.0003"Rockwell C70Chrome-Plated Tool SteelDouble-Ended Taperlock HandleUnified Standard Class 2B, Unified Standard Class 3B2366A5380000000
     
    Go/No-Go Gauges with Calibration Certificate Traceable to NIST
    7/8"-14
    		UNF
    		-0.0003" to 0.0003"Rockwell C70Chrome-Plated Tool SteelDouble-Ended Taperlock HandleUnified Standard Class 2B, Unified Standard Class 3B3157A47000000
     
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