Inch

Metric

1"

1 1/8"

1 1/4"

1 1/2"

1 3/4"

2"

2 1/4"

2 19/64"

2 1/2"

2 3/4"

3"

3 3/8"

3 3/4"

4"

4 1/2"

1/2 ft.

6 1/2"

1 ft.

13"

2 ft.

3 ft.

6 ft.

12 ft.

20 ft.

32 ft.

50 ft.

51 ft.

81 ft.

127 ft.

129 ft.

205 ft.

320 ft.

515 ft.

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 5/8"

1 3/4"

1 7/8"

2"

2 1/8"

2 1/4"

2 3/8"

2 1/2"

2 3/4"

3"

3 1/4"

3 1/2"

3 3/4"

4"

4 1/2"

5"

5 1/2"

6"

6 1/2"

7"

8"

10"

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 5/8"

1 3/4"

1 7/8"

2"

2 1/4"

2 1/2"

3"

3 1/2"

4"

4 1/2"

5"

5 1/2"

6"

8"

1/4"-12

1/4"-16

1/4"-20

5/16"-18

3/8"-8

3/8"-10

3/8"-12

3/8"-16

1/2"-8

1/2"-10

1/2"-13

1/2"-20

5/8"-5

5/8"-8

5/8"-10

5/8"-11

3/4"-5

3/4"-6

3/4"-8

3/4"-10

7/8"-6

1"-4

1"-5

1"-6

1"-8

1"-10

1 1/8"-5

1 1/4"-4

1 1/4"-5

1 1/2"-4

1 1/2"-5

2"-4

2"-5

2 1/2"-4

M10

M12

M16

M20

M24

M26

M28

M40

Oversized

Standard

Tight

ASTM Standard

California AB1953

DIN 103

Fed. Spec. QQ-C-390 G3

U.S. Congressional Act

0.188"

0.313"

0.438"

0.688"

1"

1 1/4"

1 1/2"

1 3/4"

Brinell 65

Brinell 69

Brinell 70

Brinell 126

Rockwell B25

Rockwell B35

Rockwell B65

Rockwell B70

Rockwell B75

Rockwell B85

Rockwell B90

Rockwell B95

Not Rated

2 mm

3 mm

4 mm

5 mm

7 mm

Compliant

Compliant with Exemptions

Not Compliant

EAR99

Exempt

Compliant

Not Compliant

Soft

Medium

Not Rated

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 99,999 psi

Not Rated

Material Certificate with Traceable Lot Number

Cast

Cold Worked

Pressed

H02

H04

HR50

M07

Not Rated

Mirror Like

Plain