ROLLED
SCREWS |
TYPE |
FEATURE |
APPLICATION |
 |
Space thread, gimlet point. |
Light & heavy sheet metal, soft
plastic, high impact plastic, resin bonded plywood, low density asbestos board, allied
compositions, zinc and aluminium die castings. |
| |
 |
Spaced thread, blunt slightly tapered
point. |
Heavier gauge sheet metal even up to
structural steel sections, non - ferrous castings, zinc and aluminium die castings. |
| |
 |
Spaced thread, conical point extending
beyond
the incomplete entering threads. |
For piercing fabrics or in assemblies
where holes may be misaligned. |
| |
 |
Multiple start threads of large helix
angle with a
pilot point. |
Cast iron, metal shapes and plastics
for making permanent fastenings when forced into
appropriate
holes. |
| |
 |
Spaced thread, blunt, slightly tapered
point
and cutting fluids from point to the head. |
Plastics, die castings, metal - clad and
resin - impregnated plywood, asbestos and other compositions. |
| |
TAPTITE
|
Both spaced and closed thread, blunt,
slightly tapered point, trilobed cross section. |
Forms closefitting internal threads at
relatively low driving torques. Used in thick steel sections, Cored diecasting and
in thin steel sections using
rim extuding holes. |
| |
 |
Spaced thread, double
start, gimlet point. |
Heat treated quick fixing screws are
mainly for fixing gypsum boards to steel furrings and
for similar purposes. |
| |
 |
Double start space thread high and low
flanks with different angles. |
Audio, video, cassette, camera, plastic
and non - ferrous castings |
| |
 |
Full finished threaded
gimlet point, machine
screw threads. |
Provide fast, tight assembly in plastics
and light gauge metals without a pilot hole. Greater thicknesses can be
fastened depending on application and type of material assembled. |
| |
