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DIN 928:2013 Square Weld Nut

DIN 928:2013 Square Weld Nut combines a square weld nut structure and is suitable for assemblies requiring an internal threaded point on the rear side of sheet metal or metal components.

The square shape helps positioning, and weld projections or weld faces bond firmly to the base material so bolts can be installed from the opposite side. Compared with ordinary fasteners, this form places more emphasis on controllable installation, surface protection, and efficient management of matching parts for engineering projects requiring stable supply.

It is commonly used in automotive sheet metal, cabinets, bracket assemblies, rail vehicle accessories, and metal housings. According to drawings or service conditions, thread size, weld projection form, material, and corrosion protection can be selected to improve overall fastening performance and service life.

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PREV：DIN 525:1986 Weld Stud NEXT：DIN 929:2013 Hex Weld Nut

Dimensions unit: inch 

Thread size

M4

M5

M6

M8

M10

7/16
20 UNF-2B SW17 ①

7/16
20 UNF-2B SW19 ①

M12

M14

M16

P

Coarse Thread

0.7

0.8

1

1.25

1.5

/

/

1.75

2

2

Fine Thread 1

/

/

/

1

1

/

/

1.25

1.5

1.5

Fine Thread 2

/

/

/

/

1.25

-

-

1.5

-

-

b

Nominal

0.8

1.0

1.2

1.5

1.8

1.8

2.0

2.0

2.5

2.5

Max.

0.95

1.15

1.35

1.65

2.0

2.0

2.2

2.2

2.7

2.7

Min.

0.65

0.85

1.05

1.35

1.6

1.6

1.8

1.8

2.3

2.3

d1

Min.=Nominal (H13)

5

6

7.5

10

12.5

12.5

13.5

13.5

16.8

18.8

Max.

5.18

6.18

7.72

10.22

12.77

12.77

13.77

13.77

17.07

19.13

d2

Max.

4.2

5.25

6.3

8.4

10.5

11.7

11.7

12.6

14.7

16.8

d3

Min.

6.4

8.2

9.1

12.8

15.6

15.6

17.4

17.4

20.4

22.4

e

Min.

9

12

13

18

22

22

25

25

28

32

h1

Nominal

0.6

0.8

0.8

1

1.2

1.2

1.4

1.4

1.4

1.6

Max.

0.7

0.9

0.9

1.1

1.3

1.3

1.5

1.5

1.5

1.7

Min.

0.5

0.7

0.7

0.9

1.1

1.1

1.3

1.3

1.3

1.5

h2

Min.

0.4

0.6

0.7

1.1

1.25

1.25

1.75

1.75

1.75

2

Max.

1.3

1.5

1.8

2.0

2.2

2.2

3.0

3.0

3.2

4.0

m

Max.=Nominal (h13)

3.5

4.2

5

6.5

8

9

9

9.5

11

13

Min.

3.2

3.9

4.7

6.14

7.64

8.64

8.64

9.14

10.57

12.57

s

Max.=Nominal (h13)

7

9

10

14

17

17

19

19

22

24

Min.

6.64

8.64

9.64

13.57

16.57

16.57

18.48

18.48

21.48

23.48

 Weight per thousand pieces kg

0.81

1.70

2.40

6.50

11.30

12.5

16.5

16.5

26.7

35.8

Guaranteed load(N)

Coarse Thread

6800

11000

15500

28300

44800

-

-

65300

89700

123000

Fine Thread 1

-

-

-

30200

50200

-

-

72100

97500

132000

Fine Thread 2

-

-

-

-

47800

53600

53600

68200

-

-

① Inches: 7/16-20 UNF-2B [ASME B 1.1]

② Material: Steel with a carbon content not exceeding 0.25%, other types of steel subject to agreement

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