Bolt Comparison
Metric |
M14 |
M16 |
M20 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
M48 |
M52 |
M56 |
M64 |
M70 |
M76 |
M90 |
Inch |
1/2 |
5/8 |
3/4 |
7/8 |
1 |
1-1/8 |
1-1/4 |
1-3/8 |
1-1/2 |
1-5/8 |
1-7/8 |
2 |
2-1/4 |
2-1/2 |
2-3/4 |
3 |
3-1/2 |
Carbon and Alloy Steel Bolt & Nut |
|
Chinese Standard |
ANSI/ASTM |
|
Bolt |
Nut |
Bolt |
Nut |
Type: |
Machine Bolt |
Hex Nut |
Machine Bolt |
Heavy Hex Nut |
|
Stud Bolt |
Heavy Hex Nut |
Stud Bolt |
|
|
Full Thread Bolt |
|
Full Thread Bolt |
|
Standard&Code: |
GB5782-2000 |
GB6170-2000 |
ANSI B18.2.1 |
ANSI B18.2.2 |
|
GB5785-2000 |
GB6171-2000 |
ANSI B1.1 |
ANSI B1.1 |
|
|
GB6175-2000 |
|
|
|
GB901-1998 |
GB6176-2000 |
|
|
|
|
|
|
|
|
HG20613-97 |
HG20613-97 |
|
|
|
HG20634-97 |
HG20634-97 |
|
|
|
SH3404-96 |
SH3404-96 |
|
|
Material: |
35# |
25# |
ASTM A307 GR.B |
ASTM A194 GR.2H |
|
35CrMoA |
45# |
ASTM A193 GR.B7 |
ASTM A194 GR.2H |
|
|
|
ASTM A193 GR.B7M |
ASTM A194 GR.2HM |
|
35CrMoA |
30CrMo |
ASTM A320 GR.L7 |
ASTM A194 GR.7 |
|
|
|
ASTM A320 GR.L7M |
ASTM A194 GR.7M |
|
25Cr2MoVA |
30CrMo |
ASTM A193 GR.B16 |
ASTM A194 GR.7 |
Stainless Steel Bolt & Nut |
|
Chinese Standard |
ANSI/ASTM |
|
Bolt |
Nut |
Bolt |
Nut |
Type: |
Machine Bolt |
Hex Hut |
Machine Bolt |
Heavy Hex Nut |
|
Stud Bolt |
Heavy Hex Hut |
Stud Bolt |
|
|
Full Thread Bolt |
|
Full Thread Bolt |
|
Standard&Code: |
GB5782-2000 |
GB6170-2000 |
ANSI B18.2.1 |
ANSI B18.2.2 |
|
GB5785-2000 |
GB6171-2000 |
ANSI B1.1 |
ANSI B1.1 |
|
|
GB6175-2000 |
|
|
|
GB901-1998 |
GB6176-2000 |
|
|
|
HG20613-97 |
HG20613-97 |
|
|
|
HG20634-97 |
HG20634-97 |
|
|
|
SH3404-96 |
SH3404-96 |
|
|
Material: |
0Cr18Ni9 |
0Cr18Ni9 |
ASTM A193 GR.B8 |
ASTM A194 GR.8 |
|
|
|
ASTM A193 GR.B8A |
ASTM A194 GR.8A |
|
|
|
ASTM A193 GR.B8 CL2 |
ASTM A194 GR.8A |
|
|
|
ASTM A320 GR.B8 |
ASTM A194 GR.8 |
|
|
|
ASTM A320 GR.B8A |
ASTM A194 GR.8A |
|
|
|
ASTM A320 GR.B8 CL2 |
ASTM A194 GR.8A |
|
0Cr17Ni14Mo2 |
0Cr17Ni14Mo2 |
ASTM A193 GR.B8M |
ASTM A194 GR.8M |
|
|
|
ASTM A193 GR.B8MA |
ASTM A194 GR.8MA |
|
|
|
ASTM A193 GR.B8M CL2 |
ASTM A194 GR.8MA |
|
|
|
ASTM A320 GR.B8M |
ASTM A194 GR.8M |
|
|
|
ASTM A320 GR.B8MA |
ASTM A194 GR.8MA |
|
|
|
ASTM A320 GR.B8M CL2 |
ASTM A194 GR.8MA |
|
|
|
ASTM A453 GR.660A |
ASTM A194 GR.8C |
Dimensions of Stud bolt for flanges according to ASME B16.5 (millimeters unless otherwise indicated) Class 150
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
1/2 |
55 |
- |
4 |
3/4 |
1/2 |
65 |
- |
4 |
1 |
1/2 |
65 |
75 |
4 |
1 ¼ |
1/2 |
70 |
85 |
4 |
1 ½ |
1/2 |
70 |
85 |
4 |
2 |
5/8 |
85 |
95 |
4 |
2 ½ |
5/8 |
90 |
100 |
4 |
3 |
5/8 |
90 |
100 |
4 |
3 ½ |
5/8 |
90 |
100 |
8 |
4 |
5/8 |
90 |
100 |
8 |
5 |
3/4 |
95 |
110 |
8 |
6 |
3/4 |
100 |
115 |
8 |
8 |
3/4 |
110 |
120 |
8 |
10 |
7/8 |
115 |
125 |
12 |
12 |
7/8 |
120 |
135 |
12 |
14 |
1 |
135 |
145 |
12 |
16 |
1 |
135 |
145 |
16 |
18 |
1 1/8 |
145 |
160 |
16 |
20 |
1 1/8 |
160 |
170 |
20 |
24 |
1 1/4 |
170 |
185 |
20 |
Class 300
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
1/2 |
65 |
75 |
4 |
3/4 |
5/8 |
75 |
90 |
4 |
1 |
5/8 |
75 |
90 |
4 |
1 ¼ |
5/8 |
85 |
95 |
4 |
1 ½ |
3/4 |
90 |
100 |
4 |
2 |
5/8 |
90 |
100 |
8 |
2 ½ |
3/4 |
100 |
115 |
8 |
3 |
3/4 |
110 |
120 |
8 |
3 ½ |
3/4 |
110 |
125 |
8 |
4 |
3/4 |
115 |
125 |
8 |
5 |
3/4 |
120 |
135 |
8 |
6 |
3/4 |
120 |
140 |
12 |
8 |
7/8 |
140 |
150 |
12 |
10 |
1 |
160 |
170 |
16 |
12 |
1 1/8 |
170 |
185 |
16 |
14 |
1 1/8 |
180 |
190 |
20 |
16 |
1 1/4 |
190 |
205 |
20 |
18 |
1 1/4 |
195 |
210 |
24 |
20 |
1 1/4 |
205 |
220 |
24 |
24 |
1 1/2 |
230 |
255 |
24 |
Class 400
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
1/2 |
75 |
75 |
4 |
3/4 |
5/8 |
90 |
90 |
4 |
1 |
5/8 |
90 |
90 |
4 |
1 ¼ |
5/8 |
95 |
95 |
4 |
1 ½ |
3/4 |
110 |
110 |
4 |
2 |
5/8 |
110 |
110 |
8 |
2 ½ |
3/4 |
120 |
120 |
8 |
3 |
3/4 |
125 |
125 |
8 |
3 ½ |
7/8 |
140 |
140 |
8 |
4 |
7/8 |
140 |
140 |
8 |
5 |
7/8 |
145 |
145 |
8 |
6 |
7/8 |
150 |
150 |
12 |
8 |
1 |
170 |
170 |
12 |
10 |
1 1/8 |
190 |
190 |
16 |
12 |
1 1/4 |
205 |
205 |
16 |
14 |
1 1/4 |
210 |
210 |
20 |
16 |
1 3/8 |
220 |
220 |
20 |
18 |
1 3/8 |
230 |
230 |
24 |
20 |
1 1/2 |
240 |
250 |
24 |
24 |
1 3/4 |
265 |
280 |
24 |
Class 600
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
1/2 |
75 |
75 |
4 |
3/4 |
5/8 |
90 |
90 |
4 |
1 |
5/8 |
90 |
90 |
4 |
1 ¼ |
5/8 |
95 |
95 |
4 |
1 ½ |
3/4 |
110 |
110 |
4 |
2 |
5/8 |
110 |
110 |
8 |
2 ½ |
3/4 |
120 |
120 |
8 |
3 |
3/4 |
125 |
125 |
8 |
3 ½ |
7/8 |
140 |
140 |
8 |
4 |
1 |
145 |
145 |
8 |
5 |
1 1/8 |
165 |
165 |
8 |
6 |
1 1/8 |
170 |
170 |
12 |
8 |
1 1/4 |
190 |
195 |
12 |
10 |
1 3/8 |
215 |
215 |
16 |
12 |
1 3/8 |
220 |
220 |
20 |
14 |
1 1/2 |
235 |
235 |
20 |
16 |
1 5/8 |
255 |
255 |
20 |
18 |
1 3/4 |
275 |
275 |
20 |
20 |
1 3/4 |
285 |
290 |
24 |
24 |
2 |
330 |
335 |
24 |
Class 900
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
3/4 |
110 |
110 |
4 |
3/4 |
3/4 |
115 |
115 |
4 |
1 |
7/8 |
125 |
125 |
4 |
1 ¼ |
7/8 |
125 |
125 |
4 |
1 ½ |
1 |
140 |
140 |
4 |
2 |
7/8 |
145 |
145 |
8 |
2 ½ |
1 |
160 |
160 |
8 |
3 |
7/8 |
145 |
145 |
8 |
4 |
1 1/8 |
170 |
170 |
8 |
5 |
1 1/4 |
190 |
190 |
8 |
6 |
1 1/8 |
190 |
195 |
12 |
8 |
1 3/8 |
220 |
220 |
12 |
10 |
1 3/8 |
235 |
235 |
16 |
12 |
1 3/8 |
255 |
255 |
20 |
14 |
1 1/2 |
275 |
280 |
20 |
16 |
1 5/8 |
285 |
290 |
20 |
18 |
1 7/8 |
325 |
335 |
20 |
20 |
2 |
350 |
360 |
20 |
24 |
2 1/2 |
440 |
455 |
20 |
Class 1500
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
3/4 |
110 |
110 |
4 |
3/4 |
3/4 |
115 |
115 |
4 |
1 |
7/8 |
125 |
125 |
4 |
1 ¼ |
7/8 |
125 |
125 |
4 |
1 ½ |
1 |
140 |
140 |
4 |
2 |
7/8 |
145 |
145 |
8 |
2 ½ |
1 |
160 |
160 |
8 |
3 |
1 1/8 |
180 |
180 |
8 |
4 |
1 1/4 |
195 |
195 |
8 |
5 |
1 1/2 |
250 |
250 |
8 |
6 |
1 3/8 |
260 |
265 |
12 |
8 |
1 5/8 |
290 |
325 |
12 |
10 |
1 7/8 |
335 |
345 |
12 |
12 |
2 |
375 |
385 |
16 |
14 |
2 1/4 |
405 |
425 |
16 |
16 |
2 1/2 |
445 |
470 |
16 |
18 |
2 3/4 |
495 |
525 |
16 |
20 |
3 |
540 |
565 |
16 |
24 |
3 1/2 |
615 |
650 |
16 |
Class 2500
NPS |
Diameter |
Length |
Length |
Number |
of bolts (inches) |
RF |
RTJ |
of bolts |
1/2 |
3/4 |
120 |
120 |
4 |
3/4 |
3/4 |
125 |
125 |
4 |
1 |
7/8 |
140 |
140 |
4 |
1 ¼ |
1 |
150 |
150 |
4 |
1 ½ |
1 1/8 |
170 |
170 |
4 |
2 |
1 |
180 |
180 |
8 |
2 ½ |
1 1/8 |
195 |
205 |
8 |
3 |
1 1/4 |
220 |
230 |
8 |
4 |
1 1/2 |
255 |
260 |
8 |
5 |
1 3/4 |
300 |
310 |
8 |
6 |
2 |
345 |
355 |
8 |
8 |
2 |
380 |
395 |
12 |
10 |
2 1/2 |
490 |
510 |
12 |
12 |
2 3/4 |
540 |
560 |
12 |
|