Internal Metric Thread Table Chart Fastener Sizes M125 - M180
ISO Metric Hardware Engineering Data
Fastener and Screw / Bolt Design, Formula and Calculations
The following table chart are standard metric internal thread sizes M125 - M180 per. ANSI/ASME B1.13M-1995. These thread sizes and classes represent bolts and screws, as well, as other standard internal threads. Do not use these values for standard metric external thread design. All units in mm.
Where: H = P ( 31/2 / 2 ) = 0.866025 P |
| ISO Metric Thread Designation |
Pitch |
Metric Internal Threads Specification Table |
|||||||
| Tolerance Class |
Minor Dia |
Pitch Dia |
Major Dia |
Tap Drill |
|||||
| Min |
Max |
Min |
Max |
Min |
Max |
Basic |
|||
| M125x8 |
8 |
6H |
116.340 |
117.340 |
119.804 |
120.254 |
125.000 |
126.605 |
117.000 |
| M125x6 |
6 |
6H |
118.505 |
119.305 |
121.103 |
121.503 |
125.000 |
126.266 |
119.000 |
| M125x4 |
4 |
6H |
120.670 |
121.270 |
122.402 |
122.737 |
125.000 |
125.912 |
121.000 |
| M125x3 |
3 |
6H |
121.752 |
122.252 |
123.051 |
123.351 |
125.000 |
125.733 |
122.000 |
| M125x2 |
2 |
6H |
122.835 |
123.210 |
123.701 |
123.951 |
125.000 |
125.539 |
123.000 |
| M125x1.5 |
1.5 |
6H |
123.376 |
123.676 |
124.026 |
124.262 |
125.000 |
125.453 |
123.500 |
| M130x8 |
8 |
6H |
121.340 |
122.340 |
124.804 |
125.254 |
130.000 |
131.605 |
122.000 |
| M130x6 |
6 |
6H |
123.505 |
124.305 |
126.103 |
126.503 |
130.000 |
131.266 |
124.000 |
| M130x4 |
4 |
6H |
125.670 |
126.270 |
127.402 |
127.737 |
130.000 |
130.912 |
126.000 |
| M130x3 |
3 |
6H |
126.752 |
127.252 |
128.051 |
128.351 |
130.000 |
130.733 |
127.000 |
| M130x2 |
2 |
6H |
127.835 |
128.210 |
128.701 |
128.951 |
130.000 |
130.539 |
128.000 |
| M130x1.5 |
1.5 |
6H |
128.376 |
128.676 |
129.026 |
129.262 |
130.000 |
130.453 |
128.500 |
| M135x6 |
6 |
6H |
128.505 |
129.305 |
131.103 |
131.503 |
135.000 |
136.266 |
129.000 |
| M135x4 |
4 |
6H |
130.670 |
131.270 |
132.402 |
132.737 |
135.000 |
135.912 |
131.000 |
| M135x3 |
3 |
6H |
131.752 |
132.252 |
133.051 |
133.351 |
135.000 |
135.733 |
132.000 |
| M135x2 |
2 |
6H |
132.835 |
133.210 |
133.701 |
133.951 |
135.000 |
135.539 |
133.000 |
| M135x1.5 |
1.5 |
6H |
133.376 |
133.676 |
134.026 |
134.262 |
135.000 |
135.453 |
133.500 |
| M140x8 |
8 |
6H |
131.340 |
132.340 |
134.804 |
135.254 |
140.000 |
141.605 |
132.000 |
| M140x6 |
6 |
6H |
133.505 |
134.305 |
136.103 |
136.503 |
140.000 |
141.266 |
134.000 |
| M140x4 |
4 |
6H |
135.670 |
136.270 |
137.402 |
137.737 |
140.000 |
140.912 |
136.000 |
| M140x3 |
3 |
6H |
136.752 |
137.252 |
138.051 |
138.351 |
140.000 |
140.733 |
137.000 |
| M140x2 |
2 |
6H |
137.835 |
138.210 |
138.701 |
138.951 |
140.000 |
140.539 |
138.000 |
| M140x1.5 |
1.5 |
6H |
138.376 |
138.676 |
139.026 |
139.262 |
140.000 |
140.453 |
138.500 |
| M145x6 |
6 |
6H |
138.505 |
139.305 |
141.103 |
141.503 |
145.000 |
146.266 |
139.000 |
| M145x4 |
4 |
6H |
140.670 |
141.270 |
142.402 |
142.737 |
145.000 |
145.912 |
141.000 |
| M145x3 |
3 |
6H |
141.752 |
142.252 |
143.051 |
143.351 |
145.000 |
145.733 |
142.000 |
| M145x2 |
2 |
6H |
142.835 |
143.210 |
143.701 |
143.951 |
145.000 |
145.539 |
143.000 |
| M145x1.5 |
1.5 |
6H |
143.376 |
143.676 |
144.026 |
144.262 |
145.000 |
145.453 |
143.500 |
| M150x8 |
8 |
6H |
141.340 |
142.340 |
144.804 |
145.254 |
150.000 |
151.605 |
142.000 |
| M150x6 |
6 |
6H |
143.505 |
144.305 |
146.103 |
146.503 |
150.000 |
151.266 |
144.000 |
| M150x4 |
4 |
6H |
145.670 |
146.270 |
147.402 |
147.737 |
150.000 |
150.912 |
146.000 |
| M150x3 |
3 |
6H |
146.752 |
147.252 |
148.051 |
148.351 |
150.000 |
150.733 |
147.000 |
| M150x2 |
2 |
6H |
147.835 |
148.210 |
148.701 |
148.951 |
150.000 |
150.539 |
148.000 |
| M150x1.5 |
1.5 |
6H |
148.376 |
148.676 |
149.026 |
149.262 |
150.000 |
150.453 |
148.500 |
| M155x6 |
6 |
6H |
148.505 |
149.305 |
151.103 |
151.503 |
155.000 |
156.266 |
149.000 |
| M155x4 |
4 |
6H |
150.670 |
151.270 |
152.402 |
152.737 |
155.000 |
155.912 |
151.000 |
| M155x3 |
3 |
6H |
151.752 |
152.252 |
153.051 |
153.351 |
155.000 |
155.733 |
152.000 |
| M155x2 |
2 |
6H |
152.835 |
153.210 |
153.701 |
153.951 |
155.000 |
155.539 |
153.000 |
| M160x8 |
8 |
6H |
151.340 |
152.340 |
154.804 |
155.254 |
160.000 |
161.605 |
152.000 |
| M160x6 |
6 |
6H |
153.505 |
154.305 |
156.103 |
156.503 |
160.000 |
161.266 |
154.000 |
| M160x4 |
4 |
6H |
155.670 |
156.270 |
157.402 |
157.737 |
160.000 |
160.912 |
156.000 |
| M160x3 |
3 |
6H |
156.752 |
157.252 |
158.051 |
158.351 |
160.000 |
160.733 |
157.000 |
| M160x2 |
2 |
6H |
157.835 |
158.210 |
158.701 |
158.951 |
160.000 |
160.539 |
158.000 |
| M165x6 |
6 |
6H |
158.505 |
159.305 |
161.103 |
161.503 |
165.000 |
166.266 |
159.000 |
| M165x4 |
4 |
6H |
160.670 |
161.270 |
162.402 |
162.737 |
165.000 |
165.912 |
161.000 |
| M165x3 |
3 |
6H |
161.752 |
162.252 |
163.051 |
163.351 |
165.000 |
165.733 |
162.000 |
| M165x2 |
2 |
6H |
162.835 |
163.210 |
163.701 |
163.951 |
165.000 |
165.539 |
163.000 |
| M170x8 |
8 |
6H |
161.340 |
162.340 |
164.804 |
165.254 |
170.000 |
171.605 |
162.000 |
| M170x6 |
6 |
6H |
163.505 |
164.305 |
166.103 |
166.503 |
170.000 |
171.266 |
164.000 |
| M170x4 |
4 |
6H |
165.670 |
166.270 |
167.402 |
167.737 |
170.000 |
170.912 |
166.000 |
| M170x3 |
3 |
6H |
166.752 |
167.252 |
168.051 |
168.351 |
170.000 |
170.733 |
167.000 |
| M170x2 |
2 |
6H |
167.835 |
168.210 |
168.701 |
168.951 |
170.000 |
170.539 |
168.000 |
| M175x6 |
6 |
6H |
168.505 |
169.305 |
171.103 |
171.503 |
175.000 |
176.266 |
169.000 |
| M175x4 |
4 |
6H |
170.670 |
171.270 |
172.402 |
172.737 |
175.000 |
175.912 |
171.000 |
| M175x3 |
3 |
6H |
171.752 |
172.252 |
173.051 |
173.351 |
175.000 |
175.733 |
172.000 |
| M175x2 |
2 |
6H |
172.835 |
173.210 |
173.701 |
173.951 |
175.000 |
175.539 |
173.000 |
| M180x8 |
8 |
6H |
171.340 |
172.340 |
174.804 |
175.254 |
180.000 |
181.605 |
172.000 |
| M180x6 |
6 |
6H |
173.505 |
174.305 |
176.103 |
176.503 |
180.000 |
181.266 |
174.000 |
| M180x4 |
4 |
6H |
175.670 |
176.270 |
177.402 |
177.737 |
180.000 |
180.912 |
176.000 |
| M180x3 |
3 |
6H |
176.752 |
177.252 |
178.051 |
178.351 |
180.000 |
180.733 |
177.000 |
| M180x2 |
2 |
6H |
177.835 |
178.210 |
178.701 |
178.951 |
180.000 |
180.539 |
178.000 |
Related:
- ANSI Inch Unit Hardware Design Guide
- Length of Screw Thread Engagement per. ISO 965-1 Calculator, Formula and Table Length of engagement of mating threads is selected to utilize full tensile strength of a bolt prior to shearing and nut threads.
- Metric External (Fasteners) Thread Designations Sizes M0.25 - M1.4
- Metric External (Fasteners) Thread Designations Sizes M1.6 - M18
- Metric External (Fasteners) Thread and Fastener Sizes M20 - M55
- Metric External (Fasteners) Thread and Fastener Sizes M56 - M78
- Metric External (Fasteners) Thread and Fastener Sizes M80 - M100
- Metric External (Fasteners) Thread and Fastener Sizes M105 - M135
- Metric External (Fasteners) Thread and Fastener Sizes M140 - M175
- Metric External (Fasteners) Thread and Fastener Sizes M180 - M255
- Metric External (Fasteners) Thread and Fastener Sizes M260 - M1060
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