Taptite fasteners roll-form threads as they are driven,eliminating expensive tapping operations. The Taptite fastener's unique tri-lobular configuration provides a built-in locking device to help ensure joint integrity.

    Consequently,resistance to vibration loosening is improved without add-on locking devices.

	Tri-lobular Shape for Thread-Rolling   Maintains Joint Integrity   Overcomes Friction Build-up   Lowers Drive Torque
	Consistent Thread Profile   Improves Product Consistency   Increases Perfomance

 

    The removal of inefficient operations and unnecessary components is key to fastening cost reduction. Since Taptite fasteners roll form thread as they are driven into the mating material, expensive tapping operations are no longer necessary.

◆Eliminates costly and time-consuming tapping operations and equipment

 

    When installing a thread-rolling fastener,high drive torque values are typically required to overcome friction . The Taptite fasteners tri-lobular shape is designed to reduce friction,so less driving torque is needed to seat the fastener.As the Taptite fastener is driven,strong,work hardened mating threads are formed.

◆Alleviates stripping problems and cut chips

◆Reduces cross-threading

◆Provides uninterrupted grain flow by roll forming strong mating threads for improved joint integrity

 

   Standard thread series allows easy field replacement with machine screws.

◆Design allows removal and reinsertion of the fastener

 

     The mechanical locking feature of the Taptite fastener dramatically improves vibration loosening resistance. A unique tri-lubular configuration allows the material being tapped to cold flow into the relief area of the thread shank,providing a secure fit and high prevailing torque.

◆Prevailing torque exceeds IFI 124 and 524 standards

◆Reduces vibration loosening without extraneous locking devices,such as washers or adhesives

 

     Taptite fasteners form threwas in drilled ,punched or cored holes in ductile metals and castings. 

 

Advances in Fastening Technology

Machine Screw     Limitations ◆Interrupted grain flow weakens threads ◆Problems with shearing ◆High thread tolerance causes looseness

Thread-Cutting Screw     Limitations ◆Interrupted grain flow weakens threads ◆Longer point required ◆A symmetrical point causes difficult starting and re-use ◆Requires large pilot hole depth and chip space ◆Chips can cause assembly contamination

Taptite Thread-Rolling Screw     Advantages ◆Largest possible shear area ◆Strong work hardened mating threads provide uninterrupted grain flow ◆High resistance to vibration loosening ◆Stronger than equivalent size machine screw joint

           

  Cun core Fasteners

    When tapping into high strength steel or for structural applications,a Cuncore fastener is recommended Cuncore tasteners are made from high strength alloy steel which is through hardened to HRC 33-39 and tempered . The fastener lead threads are induction hardened to a minumun of HRC 45 by a secondary induction treatment. When combined with noneletroplated finishes,performance is improved.

 Cundrill Fasteners

    The self-drilling screw is recommended if the applications without holes or difficult to find the exactly postion of pre-made hole. It is wildly used in home decoration,appliance assembly-line,etc. so that improves the efficiency and greatly reduces the in-place costs.

 Taptite Step Taper CA

    The Taptite Step Taper CA fasteners's specially designed point finds holes rapidly and is recommended when fastening misaligned pilot and clearance holes. The Taptite Step Taper CA is also suggested for applications with floating nut members.In addition,the second taper lowers initial end load.