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DIN 966:1990 Oval Countersunk Head Phillips Screw

DIN 966:1990 Oval Countersunk Head Phillips Screw combines a Phillips drive with a oval countersunk head, making it suitable for fastening points that require reliable clamping, removable maintenance, and standardized assembly. The DIN standard background helps keep dimensional requirements clear across drawings, purchasing, and quality inspection, supporting smooth alignment between engineering drawings, purchasing lists, and quality inspection.

From an assembly perspective, the cross recess provides good centering and suits production assembly, workstation operations, and joints requiring controlled driving. At the same time, combines a countersunk bearing surface with a rounded top, reducing projection while maintaining a finished appearance, so the screw can provide stable fastening performance across different sheet thicknesses, appearance requirements, and space limitations.

It suits panels, housings, decorative joints, and visible assemblies requiring both a smooth transition and a refined appearance. For batch assembly, the product can be tailored around workstation tools, tightening torque, visual grade, and packaging method to reduce sorting cost and improve assembly consistency.

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PREV：ASME/ANSI B18.6.3:2010 Countersunk Head Phillips Screw NEXT：ASME/ANSI B18.6.7M:1998 Metric Oval Countersunk Head Phillips Screw

Dimensions unit: mm

Thread size d

M1.6

M2

M2.5

M3

(M3.5)

M4

M5

M6

M8

M10

P

Pitch

0.35

0.4

0.45

0.5

0.6

0.7

0.8

1

1.25

1.5

a

Max.

0.7

0.8

0.9

1

1.2

1.4

1.6

2

2.5

3

dk

Max.=Nominal

3

3.8

4.7

5.6

6.5

7.5

9.2

11

14.5

18

Min.

2.75

3.5

4.4

5.3

6.14

7.14

8.84

10.57

14.07

17.57

f

≈

0.4

0.5

0.6

0.75

0.9

1

1.25

1.5

2

2.5

k

Max.

0.96

1.2

1.5

1.65

1.93

2.2

2.5

3

4

5

r

Max.

0.4

0.5

0.7

0.8

0.95

1

1.3

1.6

2

2.5

R

≈

3

4

5

6

7

8

10

12

16

20

x

Max.

0.9

1

1.1

1.25

1.5

1.75

2

2.5

3.2

3.8

Slot number

 

0

1

1

1

2

2

2

3

4

4

M1

≈

1.9

2.5

2.7

3.1

4.2

4.5

5.3

6.8

9

10

M2

≈

1.8

2.4

2.8

3.1

4.3

4.6

5.3

7

8.8

9.9

Thousand pieces of steel weigh ≈kg 

-

-

-

-

-

-

-

-

-

-

Thread length b 

Min.

-

-

-

-

-

-

-

-

-

-

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