Stainless steel hand Knob thumb Screw

Product name

Stainless steel thumb screw

Material

1. Steel:C45(K1045), C46(K1046),C20

2. Stainless Steel: SUS201, SUS303, SUS304, SUS316, SUS410, SUS420

3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58)

4. Iron: 1213, 12L14,1215,ect

5. Alloy steel: SCM435,10B21

6. Aluminum: Al6061, Al6063 etc

Surface treatment

Zinc plated, NI-platd, passivate, Ti-plated, Sandblast, Anodize, Chrome plated, Electro plating, Black, Plain, Dacro, Hot deep Galvanized or according to your requirement

Heat treatment

Tempering, Hardening, Spheroidizing, Stress Relieving.

Standard

MS21209/Din8140

Reliability test

Mechanical dimentions, hardness test. salt spray endurance test

Thread size(d)

M1.6

M2

M2.5

M3

M4

M5

M6

M8

M10

0.35

0.4

0.45

0.5

0.7

0.8

1

1.25

1.5

dk

Max

7

8

9

11

12

16

20

24

30

Min

6.78

778

8.78

10.73

11.73

15.73

19.67

23.67

29.67

k

Max

4.7

5

5.5

7

8

10

12

16

20

Min

4.52

4.82

5.32

6.78

7.78

9.78

11.57

15.57

19.48

K₁

2

2

2.2

2.8

3

4

5

6

8

K₂

0.8

1

1

1.2

1.5

2

2.5

3

3.8

d₁

4

4.5

5

6

8

10

12

16

20

d₂

3.6

3.8

4.4

5.2

6.4

9

11

13

17.5