Feature Traditional Faults FB Correctly Manufactured
Off centre head flats

 

 Off centre head flats  Off centre head flats manufactured

Normal workholding methods create an environment where any flats that are machined on the head of an anchor bolt are more than likely to be off centre. 

By using the latest VMC equipment with bespoke workholding methods FB ensures that any flats are perfectly centralised on the thread of the bolt.  This results in the load on the pin being pulled in line with the anchor bolt rather than away from the line of pull.  This removes the risk of early fatigue failure of the thread or shaft.

Non
parallel head flats
 

 Non parallel head flats

 

Non parallel head flats manufactured

Normal workholding methods can lead to the flats, machined on the head of an anchor bolt, being manufactured out of parallel.

By using the latest VMC equipment with bespoke workholding methods FB makes sure that these flats are perfectly parallel and perpendicular. This makes sure that the head section has the same tensile strength throughout. This eliminates the risk of an early tensile failure.

 Off
centre slots

 Off centre slots

 Off centre slots manufactured

Traditional methods of slotting encourages the slots to be produced off-centre. By using the latest VMC equipment with bespoke workholding methods FB ensure that the slots are manufactured perfectly in line with the bolt centre line.  This means
that as the load is applied the line of pull is along the centre line axis of the bolt with no danger of unwanted turning forces.  This ensures that FB anchor bolts are resistant to thread fatigue failures.
Non
parallel slots
 Non parallel slots  Non parallel slots manufactured
Usual manufacturing methods make it easy for the slots to be produced out of line with the centre line of the bolt. By using the latest VMC equipment with bespokeworkholding methods FB make this scenario impossible and all slots are manufactured parallel to the line of pull of the chain.  This ensures that no unusual or unwanted forces are exerted on the chain end links that will cause early failure of the
chain or anchor bolt.
Pin
hole misalignment
 Pin hole misalignment  Pin hole misalignment manufactured
It is very common for anchor bolts to be manufactured with anchor pin holes that are not perpendicular to the anchor bolt centre line. By using the latest VMC equipment with bespoke workholding methods FB have eliminated this problem.  This ensures that the forces on the anchor pin are perfectly square and that there are no unusual or unwanted forces exerted on the chain end links that will cause early failure of the chain anchor bolt.

Diagrams have been overstated to highlight errors