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    44 Products
    About Threaded Inserts
    industrial info icon

    Choose the right threaded insert for your application and learn how to install it securely.

    Helical Threaded Inserts for Pipe Threads

    Image of Product. Bottom orientation. Threaded Inserts. Helical Threaded Inserts for Pipe Threads.
    Repair or strengthen pipe connections by installing these inserts in a tapped hole. Also known as Heli-Coil inserts.
    Installation requires a drill bit, a helical insert tap, and an installation tool.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Through-Hole
    Taps
    Installation
    Tools
    Inserts with
    Installation Tools
    Pipe
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    No. of Inserts
    Included
    Each
    Pronged BSPP Thread
     
    18-8 Stainless Steel
    1/8
    		0.188"25/64"
    		0.391"191733A4070000091711A11100000090261A221000000————0
    1/4
    		0.375"17/32"
    		0.531"191733A408000091711A1120000090261A22200000————0
    3/8
    		0.562"43/64"
    		0.672"191733A409000091711A11300000090261A22300000————0
    1/2
    		0.750"27/32"
    		0.844"191733A411000091711A11400000090261A22400000————0
     
    Pronged NPT Thread
     
    18-8 Stainless Steel
    1/8
    		0.273"W
    		0.386"591733A4010000091711A2510000090261A2010000001291733A4210000000
    1/4
    		0.394"33/64"
    		0.516"591733A4020000091711A25200000090261A2020000001291733A422000000
    3/8
    		0.407"21/32"
    		0.656"191733A403000091711A25300000090261A2030000001091733A423000000
    1/2
    		0.534"13/16"
    		0.813"191733A404000091711A25400000090261A2040000001091733A424000000
     

    Helical Threaded Inserts for Pipe Threads with Installation Tools

    Image of Product. Front orientation. Threaded Inserts. Helical Threaded Inserts for Pipe Threads with Installation Tools.
    Fix stripped pipe threads fast—these inserts come with drill bits, through-hole taps, and installation tools. Also known as Heli-Coil inserts.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Pipe
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of Inserts
    Included
    Includes
    Each
    Pronged NPT Thread
     
    18-8 Stainless Steel
    1/8
    		0.273"3/8"
    		0.375"12Drill Bit
    Installation Tool
    Through-Hole Tap    		91733A4210000000
    1/4
    		0.394"33/64"
    		0.516"12Drill Bit
    Installation Tool
    Through-Hole Tap    		91733A422000000
    3/8
    		0.407"21/32"
    		0.656"10Drill Bit
    Installation Tool
    Through-Hole Tap    		91733A423000000
    1/2
    		0.534"13/16"
    		0.813"10Drill Bit
    Installation Tool
    Through-Hole Tap    		91733A424000000
     

    Easy-Start Helical Threaded Insert Installation Tools

    These tools compress the diameter of your insert so it fits easily into a tapped hole. They’re the best choice for preventing misaligned or damaged threads—just make sure you have space to turn the crank. Screw or slide an insert onto your tool and drive it between a quarter-turn and half-turn below the surface. Also known as prewinders.
    Threaded Insert Installation Tools with Depth Stop
    Image of Product. Front orientation. Threaded Insert Installation Tools. Easy-Start Helical Threaded Insert Installation Tools, Threaded Insert Installation Tools with Depth Stop, Crank Handle.
    Image of Product. Front orientation. Threaded Insert Installation Tools. Easy-Start Helical Threaded Insert Installation Tools, Threaded Insert Installation Tools with Depth Stop, T-Handle.
    Image of Specification. Threaded Drive. Front orientation. ZoomedIn view. Threaded Drive Helical Insert Tool. Easy-Start Helical Threaded Insert Installation Tools, Threaded Insert Installation Tools with Depth Stop.

    Crank Handle

    T-Handle

    Threaded Drive

    Ensure consistent installation across multiple inserts. Set your desired installation depth, and the stop will prevent you from driving your insert any further.
    Threaded Drive Helical Insert Tool—These tools align each coil of your insert perfectly with the thread pitch of your tapped hole for easy installation.
    For Pipe
    Size
    Mfr.
    Handle
    Style
    Helical Insert
    Tool Drive Type
    For Use With
    Each
    NPT Pipe Thread
    1/8
    		Heli-CoilCrankThreadedHelical Inserts, Screw-Locking Helical Inserts90261A2010000000
    1/4
    		Heli-CoilCrankThreadedHelical Inserts, Screw-Locking Helical Inserts90261A202000000
    3/8
    		Heli-CoilT-HandleThreadedHelical Inserts, Screw-Locking Helical Inserts90261A203000000
    1/2
    		Heli-CoilT-HandleThreadedHelical Inserts, Screw-Locking Helical Inserts90261A204000000
     

    Helical Threaded Insert Installation and Prong Break-Off Tools

    Image of Product. Front orientation. Threaded Insert Installation Tools. Helical Threaded Insert Installation and Prong Break-Off Tools, L-Handle.

    L-Handle

    Image of Product. Front orientation. Threaded Insert Installation Tools. Helical Threaded Insert Installation and Prong Break-Off Tools, T-Handle.

    T-Handle

    Install helical inserts and break off prongs with one tool and a hammer strike. These tools have a slot that grips your insert’s prong for turning both left- and right-hand threads. Slide an insert onto these tools and drive them a quarter-turn to half-turn below the material’s surface. Then, strike the end of the tool with a hammer to break off the prong. These tools work with pronged helical inserts.
    For Pipe
    Size
    Handle
    Style
    Each
    BSPP Pipe Thread
    1/8
    		L-Handle90261A221000000
    1/4
    		T-Handle90261A22200000
    3/8
    		T-Handle90261A22300000
    1/2
    		T-Handle90261A22400000
     

    Air-Powered Key-Locking Threaded Insert Installation Tools

    Image of Product. Front orientation. Threaded Insert Installation Tools. Air-Powered Key-Locking Threaded Insert Installation Tools.
    Install key-locking inserts in a flash. Instead of threading and hammering inserts in by hand, these air-powered tools do both steps with the pull of a trigger. Release the trigger and the tool automatically resets, ready for the next insert. They’re compatible with Keensert inserts.
    Air Inlet
    Threaded Insert Tool
    Cycle Time, sec.
    Max. Speed
    @ 90 psi, rpm
    Wt.,
    lb.
    Average Air Consumption
    @ Pressure
    Pipe
    Size
    Thread
    Type
    Gender
    Includes
    Container
    Type
    Each
    102,0004.41.4 ft³/min @ 90 psi1/4
    		NPTF
    		FemaleOne Nosepiece for 1/4-20 Thread Size
    One Nosepiece for 3/8-16 Thread Size
    One Nosepiece for 5/16-18 Thread Size
    One Nosepiece for 10-24 Thread Size    		Plastic Case91456A121000000000
    Threaded Insert Installation Tool Nosepieces
    Image of Product. Front orientation. Threaded Insert Installation Tool Nosepieces. Air-Powered Key-Locking Threaded Insert Installation Tools.
    Choose a nosepiece that matches the internal thread size of your insert.
    For Thread
    Size
    For Tap Thread Size
    Each
    For Thin-Wall Inserts, Thick-Wall Inserts, and Extra-Thick-Wall Inserts
    10-24
    		5/16"-18, 3/8"-16, 7/16"-1491456A2110000000
    10-32
    		5/16"-18, 3/8"-16, 7/16"-1491456A212000000
    1/4"-20
    		3/8"-16, 7/16"-14, 1/2"-1391456A213000000
    1/4"-28
    		3/8"-16, 7/16"-14, 1/2"-1391456A214000000
    5/16"-18
    		7/16"-14, 1/2"-13, 9/16"-1291456A215000000
    5/16"-24
    		7/16"-14, 1/2"-13, 9/16"-1291456A216000000
    3/8"-16
    		1/2"-13, 9/16"-12, 5/8"-1191456A217000000
    3/8"-24
    		1/2"-13, 9/16"-12, 5/8"-1191456A218000000
    1/2"-13
    		5/8"-11, 11/16"-11, 13/16"-1691456A219000000
    1/2"-20
    		5/8"-11, 11/16"-11, 13/16"-1691456A221000000
    M5 × 0.8 mmM8 × 1.25 mm, M10 × 1.25 mm91456A621000000
    M6 × 1 mmM10 × 1.25 mm, M12 × 1.25 mm91456A622000000
    M8 × 1.25 mmM12 × 1.25 mm, M14 × 1.5 mm91456A623000000
    M10 × 1.5 mmM14 × 1.5 mm, M16 × 1.5 mm91456A624000000
    M12 × 1.75 mmM16 × 1.5 mm, M18 × 1.5 mm91456A625000000
     
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