NACM2010 TRAILER SAFETY CHAIN

Classification

Chain Size

Grade

Length

Hook

Min. Breaking Force

in

in

lbs

kN

Class 1

3/16

30

24-40

3/8″ S Hook

1

2,000

8.90

Class 1

3/16

30

24-40

3/8″ S Hook w/latch

1

2,000

8.90

Class 1

3/16

30

48-72

3/8″ S Hook

2

2,000

8.90

Class 1

3/16

30

48-72

3/8″ S Hook w/latch

2

2,000

8.90

Class 2&3

1/4

30

24-40

7/16″ S Hook

1

5,000

22.20

Class 2&3

1/4

30

24-40

7/16″ S Hook w/latch

1

5,000

22.20

Class 2&3

1/4

30

48-72

7/16″ S Hook

2

5,000

22.20

Class 2&3

1/4

30

48-72

7/16″ S Hook w/latch

2

5,000

22.20

Class 2&3

5/16

30

24-40

17/32″ S Hook

1

7,600

33.80

Class 2&3

5/16

30

24-40

17/32″ S Hook w/latch

1

7,600

33.80

Class 2&3

5/16

30

48-72

17/32″ S Hook

2

7,600

33.80

Class 2&3

5/16

30

48-72

17/32″ S Hook w/latch

2

7,600

33.80

Class 4

5/16

43

24-40

 Clevis Slip Hook w/latch

1

11,700

52.00

Class 4

3/8

43

24-40

 Clevis Slip Hook w/latch

1

16,200

72.00

Class 4

1/4

70

24-40

 Clevis Slip Hook w/latch

1

12,600

56.00

Class 4

5/16

70

24-40

 Clevis Slip Hook w/latch

1

18,800

83.60

Class 4

3/8

70

24-40

 Clevis Slip Hook w/latch

1

26,400

117.40

Class 4

1/2

70

24-40

 Clevis Slip Hook w/latch

1

45,200

200.80