Pin and Collar Fastening System

TIFAS® Lockbolts

As part of Baker & Finnemore’s manufacturing capability we are proud to introduce cold forging division alongside our longstanding and renowned precision pressing factory. Located in Tipton, (less than 10 miles away from the pressings facility in Birmingham, England) is the manufacturing facility for our cold forged products.

Our flagship products here are the TIFAS® and Deltabolt® Lock Bolt Fasteners. A two piece pin and collar fastening system that provides high shear, tensile and clamp strength and is 100% vibration proof.

It is commonly used in structural connection applications where access to both sides of the application is possible. The pin is placed through one side of the application with the collar around the emerging pin on the other side, and using cutting edge battery or pneumatic tooling the pin is swaged around the locking grooves achieving a permanent and reliable fixing than can only be removed by destruction.

Quality assured: ISO/TS 16949 approved manufacture.

Standard Lockbolts

High performance pin and collar fastening system.

Product Information

The two part system comprises a pin with defined breakneck groove and a collar.

The workpiece must be accessible from both sides.

Installation i.e. swaging of collar onto pin is achieved using power tools.

TIFAS® Lockbolt Advantages

Open the PDFs below for more detailed product information.

TIFAS® LockBolt Pin and Collar Fastening System Metric (PDF 2Mb)

TIFAS® LockBolt Pin and Collar Fastening System Imperial (PDF 2Mb)


TIFAS® Lockbolt Installation Procedure

TIOS® EL18 battery-operated installation tool


Installation of lockbolt pins and collars is simple, quiet and requires no special operator skill.

The installation procedure has 4 basic steps:

  1. Pin is inserted in the prepared hole and collar is placed over the locking grooves.
  2. The nose of the tool is placed over the pin tail and the trigger is pressed.
  3. The tool jaws pull on the pull grooves clamping the joint tight before the collar is swaged into the locking grooves.
  4. The pin tail breaks at a predetermined load leaving the finished joint.