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          QT-428x12.7-OD8.7
          QT-428x12.7-OD8.7
          QT-428x12.7-OD8.7
          662757243bbd746478.webp
          QT-428x12.7-OD8.7

          Quik-Tek Inserts

          QT Series Inserts

          The advantages:
          Ideal for thermoplastic parts
          Especially designed for thermal installation
          Screw-locked and low-tension anchoring
          High pull-out values
          Efficient installation due to single-spindle, 
          multiple spindle or automatic machines with preheating device
          Designed for thermoplastic plastics (PPS. ABS、PP etc.)

           

          Installation:
          The QT thread insert is heated to the melting temperature of the plastic.
          As a result of the heat transfer upon insertion,the plastic is plasticised for a short
          time and flows into the undercut of the thread insert.Upon cooling,a low-stress
          interference is realised.         

          REQUEST SAMPLES
          TECHNICAL PARAMETER
          FAQ
          A  Thread size 1/4-28UNF
          L  Insert lengths .500 in
          OD  Insert diameter .341 in
          P Pilot end .374 in
          Base panel material Plastic
          H  Hole diameter .378-.382 in
          W  Min. wall thickness .177 in
          Materials Brass
          Surface Treatment Cleaning
          Installation Equipment/Method Heat Staking/Ultrasonic

          QT Series Inserts1hj

          What can I use to rethread a bolt hole?

          To retighten a bolt hole, you can use a variety of methods and tools, depending on the condition of the hole and the materials involved. Here are some common options:

          1. Tap and Die Set
          Materials Required: Tap (for internal threads) and tap and die (for external threads) from a tap and die set.
          Steps:
          Clean Holes: Remove any debris or old material from the bolt holes.
          Choose the Correct Tap: Select a tap that matches the size and pitch of the original bolt.
          Drill (if necessary): If the threads are badly damaged, you may need to drill the holes using a drill bit that is slightly larger than the tap.
          Tapping: Insert the tap into the hole and turn it clockwise to cut new threads. Use cutting oil to lubricate the tap to make the process smoother.
          Back off occasionally: Turn the tap back slightly to clear any debris, then continue tapping until desired depth is reached.

          2. Thread Repair Insert
          Materials Required: Thread repair insert (such as Heli-Coil) and corresponding tap.
          Steps:
          Drilling: If the threads are damaged, drill the hole to the size specified by the insert.
          Tapping: Use the tap provided in the Insert Kit to create new threads for the Insert.
          Insert Repair Insert: Thread the insert into the newly tapped hole according to the kit instructions.
          TRIM IF NECESSARY: If the insert is longer than necessary, trim it to the proper length.