McMaster-Carr logo
    Filter by
    Thread Size
    Industrial Info Compare
    For Tap Thread Size
    Industrial Info Snippet
    Attribute Image
    Threaded Insert Type
    Specifications Met
    Drill Bit Size
    Attribute Image
    Key-Locking Insert Wall Type
    Certification
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    External Locking Type
    For Material Thickness
    Hole Diameter
    Passivation
    Profile
    Sold As
    Tensile Strength
    Industrial Info Snippet
    Threaded Insert Securing Type
    Thread Direction
    Internal Locking Type
    End Type
    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)
    1 Product
    About Threaded Inserts
    industrial info icon

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

    Screw-Locking Seize-Resistant Key-Locking Threaded Inserts for Soft Metal

    Image of Product. Bottom orientation. Threaded Inserts. Screw-Locking Seize-Resistant Key-Locking Threaded Inserts for Soft Metal.
    Create the tightest hold in aluminum and other soft metal without screws sticking. The lubricant on these inserts eases installation, and the irregularly shaped threads won’t let screws back out from vibration. Inserts have keys that drive into material to prevent them from slipping or rotating in the hole.
    To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.
    Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
    Dry-Film-Lubricated 18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of Locking
    Keys
    Specs.
    Met
    Each
    Standard Wall
     
    Dry-Film-Lubricated 18-8 Stainless Steel
    1/4"-28
    		7/16"-14
    		0.375"X
    		0.397"2NAS1395C4L00000000000000
    Screw-Locking Key-Locking Insert with Thick Wall, 18-8 Stainless Steel, 1/4"-28 Thread Size
    EachIn stock
     
    back to top