Taiwan Metiz Alliance
Tools for cold forming and thread rolling equipment. Drawing dies. Press molds. Punches. Rolling dies. Thread rolling dies. Taps. Grinding equipment. KO Pins. Taiwan equipment on Global market.
tel. +886-2-278-45675
fax.+886-2-278-45676
e-mail:     info@rgt.tw

Tools for cold heading and thread-rolling machines

 

PRESS FORMS FOR SELF-TAPPER DRILLS FORMING

Press forms for self-tapper drills forming. self-drilling screws

This type of tool is intended mainly for metal screws, but also used for fastening parts from metal profiles, drywall, plastics, chipboard and others, which are divided into several types:

  • Pointed black screws that go through the phosphating process
  • Galvanized screws
  • Hex head screws
self-drilling screws

The main parameters of screws with a drill: diameter 2.8 mm - 10 mm, length 9.5 mm - 210 mm

Tool size: 31.75x12.7x25.4 mm; 31.75x20x32 mm or 34 mm; 45x30x32 mm or 34 mm, and also in accordance with the table below or in accordance with the customer’s drawings or on the basis of the finished product provided, indicating the seating positions of the machines, the model of the machines used and the diameter of the wire used as raw material for landing fasteners and hardware.

The formation of the drill occurs due to the compression of the tip of the core of the product.

Type of drill: drill, wolfram wing drill

Material: tungsten carbide, high-speed steel M2, SKH 9 / 51

Coating: PVD (vacuum deposition)

Press forms for self-tapper drills forming.


Press forms for self-tapper drills forming.


Press forms for self-tapper drills forming.



Tool performance

Tool type Type 1 Type 2 Type 3
tool appearance
A 31.75 31.75 45.00
B 12.70 20.00 30.00
E 25.40 32.00 32.00
F 11.4 18.0 16.0
G 10.7 10.7 16.0
       


self-drilling screws drill self-drilling screws


Code

Drill diameter

Working length
(L)

The length of the drill
(C)

Type
(Dp Diw)

L1-22 2.2 2.5 1.7

Type 1

 

 

 

 

Type 2

L1-23 2.3
L1-27 2.7

2.5

 

 

3.5

2.4

 

 

3.2

L1-28 2.8
L1-29 2.9
L1-30
3.0
L1-31 3.1
L1-32 3.2
L1-33 3.3
L1-34 3.4
L1-35 3.5
L1-36 3.6
L1-37 3.7 4.2 4.0
L1-38 3.8
L1-39 3.9
L1-40 4.0
L1-41 4.1
L1-43 4.3 5.2 5.0 Type 2
L1-45 4.5
L1-47 4.7
L1-49 4.9
L1-51 5.1 6.4 6.2
L1-53 5.3
L1-55 5.5
L1-57 5.7
 
L2-22 2.2 3.2 2.2

Type 1

 

 

 

 

Type 2

L2-23 2.3
L2-27 2.7

3.9

3.0

L2-28 2.8
L2-29 2.9
L2-30
3.0
L2-31 3.1 4.5 3.9
L2-32 3.2
L2-33 3.3
L2-34 3.4
L2-35 3.5
L2-36 3.6
L2-37 3.7 5.1 4.8
L2-38 3.8
L2-39 3.9
L2-40 4.0
L2-41 4.1
L2-43 4.3 6.0 5.9 Type 2
L2-45 4.5
L2-47 4.7
L2-49 4.9
L2-51 5.1 7.2 7.0
L2-53 5.3
L2-55 5.5
L2-57 5.7
 
L3-23 2.3 3.8 3.7

Type 1

 

 

 

 

 

Type 2

L3-27 2.7 4.5 3.7
L3-28 2.8
L3-29 2.9
L3-30
3.0
L3-31 3.1 5.5 4.7
L3-32 3.2
L3-33 3.3
L3-34 3.4
L3-35 3.5
L3-36 3.6
L3-37 3.7 6.8 5.7
L3-38 3.8
L3-39 3.9
L3-40 4.0
L3-41 4.1
L3-43 4.3 8 6.7 Type 2
L3-45 4.5
L3-47 4.7
L3-49 4.9
L3-51 5.1 9.3 8.0
L3-53 5.3
L3-55 5.5
L3-57 5.7
 
L4-28 2.8 5 4.5

Type 1

Type 2

L4-32 3.2 6 5.5
L4-34 3.4 7 6.2
L4-39 3.9 9 7.8
L4-43 4.3 12.5 10.7
L4-45 4.5
L4-47 4.7
L4-49 4.9
L4-51 5.1
L4-53 5.3
L4-55 5.5
L4-57 5.7
 
L5-49 4.9 15 13.7

Type 1

Type 2

L5-51 5.1
L5-53 5.3
L5-55 5.5
L5-57 5.7
 
L6-49 4.9 17.7 16.7

Type 1

Type 2

L6-51 5.1
L6-53 5.3
L6-55 5.5
L6-57 5.7


This type of tool is used on the following machines: EQUIPMENT FOR DRILLS FORMATION ON SELF-TAPPERS