Feature

Totsupura is a revolutionary screw which has a compatibility with Cross-recessed head screw and prevents the driver bit from popping out called Cam out Phenomenon which is a default of Cross-recessed head screw.
It prevents screw tightening errors and stabilize quality of your products.
It dramatically reduces damage to the components caused by Cam out phenomenon and operator fatigue.
And also, it is suitable for automation and improves productivity and help laborsaving.
Moreover, it is eco-friendly and effective for the process of maintenance and recycling.

Movie
[Screw promoting automation]
Totupla screw VS cross screw/offset comparison video
[Screw promoting automation]
Totupla screw VS cross screw/offset comparison video
(Short version)

Shape comparison

Totupla®PAT.

TOTUPLA
Shape of driver bit trip:Straight
The driver bit end id designed straight and it prevents bit from popping out.
TOTUPLA
Thanks to the wide wings , an inward force acts which prevents Cam out phenomenon and screw driving force could increase when torque is applied.
TOTUPLA
  • Straight design improved work efficiency. There is no wobbling bit in fastening
  • The drive area is wide and driving force per drive area is low. so the screw recess hardly get damaged.
  • The screw driving force per drive area is low. so bit wear is minimized and life would be extended.
  • The perfect fit between the driver bit and screw recess stabilizes quality of screw tightening.
  • Thanks to the large drive area, it is effective for the process of maintenance and recycling.

Cross screw

TOTUPLA
Shape of driver bit trip:Tapered
The tip of its bit tapered and it makes bit pop out.
TOTUPLA
Due to the narrow wings an outward force acts which causes Cam out phenomenom and less screw driving force.
TOTUPLA
  • Due to the design the fit between the drive bit and screw recess is poor and the driver bit easily wobbles.
  • The drive area is small and the screw driving force per drive area is high, so the recess easily gets damaged.
  • The screw driving force per drive area is high, so the bit wears easily and its life is short.
  • The fit between the driver bit and screw recess is poor which causes screw tightening errors.
  • In the process of maintenance or recycling and hard remove due to its small drive area.
Standard Table for Totsupura Screw

Precision No.0
Thin flat (height: 0.2)

Precision No.0
Thin flat (height: 0.2)
Nominal diameter (M) M1.4 M1.6 M1.7 M2.0
Cross number ♯0 ♯0 ♯0 ♯0
Head diameter Φ (dk) 2.5 3 3.5 3 3.5 4 3 3.5 4 3.5 4 4.5
tolerance 0.05
-0.20
Head Thickness (K) 0.2 0.2 0.2 0.3
tolerance 0.05
-0.05
Q dimensions 0.53-0.35 0.74-0.51 0.74-0.51 0.89-0.61
Under head reinforcing portion (Φ da) (1.65) (1.9) (2) (2.2)
(a) (0.47) (0.5) (0.5) (0.5)

Precision No.0
Thin flat (height: 0.5)

Precision No.0
Thin flat (height: 0.5)
Nominal diameter (M) M1.4 M1.6 M1.7 M2.0
Cross number ♯0 ♯0 ♯0 ♯0
Head diameter Φ (dk) 3 3.5 4 3.5 4 4.5 3.5 4 4.5 4 4.5 5
tolerance 0.05
-0.20
0.05
-0.20
0.05
-0.20
0.05
-0.20
Head Thickness (K) 0.5 0.5 0.5 0.6
tolerance 0.05
-0.05
0.05
-0.05
0.05
-0.05
0.05
-0.05
Q dimensions 0.74-0.51 0.84-0.56 0.89-0.61 1.21-0.91
Under head reinforcing portion (Φ da) (1.8) (2) (2.1) (2.6)

Pan head

Pan head
Nominal diameter M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M5 M6
Cross number ♯1 ♯1 ♯1 ♯1 ♯2 ♯2 ♯2 ♯2 ♯3
Head diameterΦ(dk) 3.5 4 4.5 4.5 5.5 6 7 9 10.5
Head tolerance 0 -0.4 0 -0.4 0 -0.4 0 -0.4 0 -0.5 0 -0.5 0 -0.5 0 -0.6 0 -0.7
Head Thickness(K) 1.3 1.5 1.7 1.7 2 2.3 2.6 3.3 3.9
Height tolerance ±0.1 ±0.1 ±0.1 ±0.1 ±0.15 ±0.15 ±0.15 ±0.15 ±0.2
Q dimensions 1.01-0.60 1.21-0.80 1.42-1.00 1.42-1.00 1.43-0.86 1.73-1.15 2.03-1.45 2.73-2.14 2.86-2.26

Bind head

Bind head
Nominal diameter M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M5 M6
Cross number ♯1 ♯1 ♯1 ♯1 ♯2 ♯2 ♯2 ♯2 ♯3
Head diameterΦ(dk) 4.3 4.9 5.3 5.5 6.3 7.3 8.3 10.3 12.4
Head tolerance 0 -0.4 0 -0.4 0 -0.4 0 -0.4 0 -0.5 0 -0.5 0 -0.5 0 -0.6 0 -0.7
Head Thickness(K) 1.2 1.4 1.5 1.6 1.9 2.2 2.5 3.1 3.7
Height tolerance ±0.15 ±0.15 ±0.15 ±0.15 ±0.15 ±0.15 ±0.15 ±0.15 ±0.2
Q dimensions 1.01-0.65 1.21-0.85 1.32-0.95 1.42-1.05 1.53-1.01 1.83-1.30 2.13-1.60 2.83-2.29 2.86-2.31

Truss head

Truss head
Nominal diameter M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M5 M6
Cross number ♯1 ♯1 ♯1 ♯1 ♯2 ♯2 ♯2 ♯2 ♯3
Head diameterΦ(dk) 4.5 5.2 5.7 5.9 6.9 8.1 9.4 11.8 14
頭部公差 0 -0.4 0 -0.4 0 -0.4 0 -0.4 0 -0.5 0 -0.5 0 -0.5 0 -0.6 0 -0.7
Head tolerance(K) 1.2 1.4 1.5 1.6 1.9 2.2 2.5 3.1 3.7
Height tolerance ±0.1 ±0.1 ±0.1 ±0.1 ±0.15 ±0.15 ±0.15 ±0.15 ±0.2
Q dimensions 1.01-0.65 1.21-0.85 1.32-0.95 1.42-1.05 1.72-1.34 1.83-1.30 2.03-1.60 2.83-2.29 2.86-2.31

Flat head

Flat head
Nominal diameter M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M5 M6
Cross number ♯1 ♯1 ♯1 ♯1 ♯2 ♯2 ♯2 ♯2 ♯3
Head diameterΦ(dk) 4 4.6 5 5.2 6 7 8 10 12
Head Tolerance 0 -0.4 0 -0.4 0 -0.4 0 -0.4 0 -0.5 0 -0.5 0 -0.5 0 -0.6 0 -0.7
Head Thickness(K) 1.2 1.35 1.45 1.5 1.75 2 2.3 2.8 3.4
Height tolerance 0 -0.2 0 -0.2 0 -0.2 0 -0.2 0 -0.3 0 -0.3 0 -0.3 0 -0.3 0 -0.4
Q dimensions 1.01-0.65 1.21-0.85 1.42-1.05 1.42-1.05 1.43-0.91 1.93-1.40 2.33-1.79 2.93-2.38 3.26-2.70
Bit for Totsupura screw
M1.2~2.0〈#0〉
Specification Table

H4

Bit Drive Specifications Length (L)
Totsupura Plus size No. Shaft dia.(d) Length of Tip
H4
For HIOS Screwdriver
1.2~2.0 1.5 15 40, 60
1.5 20 60, 80, 100
1.7 20 60, 80, 100
2.0 20 60, 80, 100
2.5 20 60, 80, 100

1/4HEX

Bit Drive Specifications Length (L)
Totsupura Plus size No. Shaft dia.(d) Length of Tip
1/4HEX
(WAF:6.35㎜)
1.2~2.0 1.5 20 50, 75
1.7 20 50, 75
2.0 20 50, 75
2.5 20 50, 75

Order Instructions

Example) If you order a Totsupura screw bit with Shank shape: HIOS shank H4, Toppler cross hole: Toppler, total length: 60mm, tip diameter (d): 2.5mm and a tip length: 20mm, the part number will be THST4-1220-60 (2.5X20).
  • ※There are two kinds of Totsupura#0. One is Totsupura and the other is Totsupura II.
  • ※Please contact us for the stock status at each time.
  • ※It is possible to manufacture a product whose specifications are not described above.
  • ※As for the Totsupura Plus size Nos. M1.2-2.0<#0>, you can tighten all of them by using the same bit.
  • ※It is possible to manufacture other Shank shapes, such as D-cut (half-moon) type, automatic machine type and screw biting prevention type other than H4, H5, 5HEX, 1/4HEX described above.
Bit for Totsupura screw
M2.0〈#1〉~5.0
Specification Table

H4

Bit Drive
Specifications Length
Totsupura Plus size No. Shaft dia(d) Length of Tip
H4
For HIOS Screwdriver
2 2.2 20 40,60,80,100
2.3 2.6 20 40,60,80,100
2.6(2.5) 2.6 20 40,60,80,100
3.0 4.0 20 40,60,80,100

H5

Bit Drive
Specifications Length
Totsupura Plus size No. Shaft dia(d) Length of Tip
H5
For HIOS Screwdriver
2 2.2 20 60,80,100
2.3 2.6 20 60,80,100
2.6(2.5) 2.6 20 60,80,100
3.0 3.5 20 60,80,100
3.5 4.0 20 60,80,100
4.0 4.1 20 60,80,100
5.0 5.0 20 60,80,100

5HEX

Bit Drive
Specifications Length
Totsupura Plus size No. Shaft dia(d) Length of Tip
5HEX
(WAF:5㎜)
2 2.2 20 75,100
2.3 2.6 20 75,100
2.6(2.5) 2.6 20 75,100
3.0 3.6 20 75,100,120
3.5 4.0 20 75,100
4.0 4.1 20 75,100,120
5.0 5.0 20 75,100,120
  • ※L75 is Type (A), Others are Type (B)

1/4HEX

Bit Drive
Specifications Length
Totsupura Plus size No Shaft dia(d) Length of Tip
1/4HEX
(WAF:6.35㎜)
2 2.2 20 50,75
2.3 2.6 20 50,75
2.6(2.5) 2.6 20 50,75
3.0 3.6 20 75,100
3.5 4.0 20 75,100
4.0 4.1 20 50,75,100
5.0 5.0 20 75,100
  • ※L50 or L75 is Type (E), Others are Type (F)
  • ※Depending on the bit, there are two types: THS1/4HEXW, THS1/4HEX

Order Instructions

Example) If you order a chucking bit with Shank shape: HIOS shank φ5mm, Toppler cross hole number: M3.0 and total length: 80mm, the part number will be THSC5-30-80.
  • ※Please contact us for the stock status at each time.
  • ※In the case of a Totsupura screw with a thin head portion, the Totsupura cross hole number sometimes might be smaller than the one you usually use, so please contact us for the part number when you order the bit.
  • ※It is possible to manufacture other Shank shapes, such as D-cut (half-moon) type, automatic machine type and screw biting prevention type other than H4, H5, 5HEX, 1/4HEX described abov