| Tri-lobular screws are ideal for development
production and maintenance use. Dar
Al Turbine Trading Est. Limited introduces
NIE* brand thread forming screws/NIE* brand
trilobular screws.
Features:
* The forming action gives an uninterrupted grain flow
with the material compacting the female
thread into tight fitting contact with the
screw.
*
The resulting firmness of fit enables the
Joint to resist vibration eliminating the
need for other costly methods to prevent
loosening such as plastic pathetics or underhead
locking washers & nuts.
*
A Larger, variation in pilot hole acceptable
than with drilled and tapped holes.
*
In thin sheets performance is increased
by the use of extruded holes to give an
increased length of thread engagement
*
Accumulation of chips which occur with thread
cutting screws is not a problem making the
screws ideal for use in blind holes and
in applications in the electrical industry
where short circuiting can be a serious problem
*
Do not require pre-tapping, thus saves tapping
cost, time, labour & transit.
*
Requires only a punched hole to drive the
screws.
*The
triangular cross section of the shank forms
the threading on the counter part.
*
Does not require additional spares like
spring washer, plain washer & nuts.
*
More over these screws forms the threading
which are of standard ortch of an ordinary
machine screw thus provides reusability
and inter changeability which is an edge
over ordinary fasteners.
*
A considerable amount of money , time, transit
and labour is saved. |
Fasteners
