Metric screw threads - example results

M10 - 6g
metric thread, external
Metric screw thread - nominal sizes
Name Symbol Value
Height H 1,299038 mm
Distance H/2 0,649519 mm
5/8 H 0,811899 mm
3/8 H 0,487139 mm
H/4 0,324760 mm
H/6 0,216506 mm 2)
H/8 0,162380 mm
According to ISO 68-1:1998
Name Symbol Value Unit Remarks
Nominal diameter 10 [mm] first choice
Pitch P 1,5 [mm] coarse
Lead Ph 1,5 [mm]
Number of starts 1 [-]
Thread angle α 60 [°]
Basic major diameter d 10 [mm] 9,732 ÷ 9,968
Basic pitch diameter d2 9,026 [mm] 8,862 ÷ 8,994
Basic minor diameter d1 8,376 [mm] 1) ÷ 8,344
Minor diameter of external thread d3 8,160 [mm] 7,938 ÷ 8,128
Root radius R 0,217 2) [mm]
Height of thread h3 0,920 2) [mm]
Crest truncation P/8 0,188 [mm]
Truncation P/4 0,375 [mm]
Half-pitch P/2 0,750 [mm]
According to ISO 68-1:1998, ISO 261:1998, ISO 724:1993
1) Without tolerancing.
2) According to DIN 13-19:1999-11
The figure illustrating external threads with tolerance positions 'e', 'f' or 'g'
OTHER
Minor diameter of external thread
Basic d3 8,160 mm
Minimum d3 min 7,938 mm
Maximum d3 max 8,128 mm
Upper deviation (fundamental) es -32 μm
Deviation for stress calculation esnap -249 μm
The minimum truncation Cmin 0,188 mm
Minimum root radii Rmin 0,188 mm 2)
According to ISO 965−1:1998, ISO 965−3:1998
BASIC DIMENSIONS
Basic major diameter
Basic d 10 mm
Minimum dmin 9,732 mm
Maximum dmax 9,968 mm
Tolerance Td 236 μm
Upper deviation (fundamental) es -32 μm
Lower deviation ei -268 μm
Basic pitch diameter
Basic d2 9,026 mm
Minimum d2 min 8,862 mm
Maximum d2 max 8,994 mm
Tolerance Td2 132 μm
Upper deviation (fundamental) es -32 μm
Lower deviation ei -164 μm
Basic minor diameter
Basic d1 8,376 mm
Minimum 1)
Maximum d1 max 8,344 mm
Tolerance 1)
Upper deviation (fundamental) es -32 μm
Lower deviation 1)
According to ISO 965−1:1998, ISO 965−3:1998
1) Without tolerancing.
2) According to ISO 965−1:1998 standard recommendation the root profile shall have a nonreversing curvature, no portion of which shall have a radius of less than 0.125 × P.
M10 - 6g
metric thread, external
Metric screw thread - nominal sizes
Name Symbol Value
Height H 1,299038 mm
Distance H/2 0,649519 mm
5/8 H 0,811899 mm
3/8 H 0,487139 mm
H/4 0,324760 mm
H/6 0,216506 mm 2)
H/8 0,162380 mm
According to ISO 68-1:1998
Name Symbol Value Unit Remarks
Nominal diameter 10 [mm] third choice
Pitch P 1,5 [mm] coarse
Lead Ph 1,5 [mm]
Number of starts 1 [-]
Thread angle α 60 [°]
Basic major diameter d 10 [mm] 9,732 ÷ 9,968
Basic pitch diameter d2 9,026 [mm] 8,862 ÷ 8,994
Basic minor diameter d1 8,376 [mm] 1) ÷ 8,344
Minor diameter of external thread d3 8,160 [mm] 7,938 ÷ 8,128
Root radius R 0,217 2) [mm]
Height of thread h3 0,920 2) [mm]
Crest truncation P/8 0,188 [mm]
Truncation P/4 0,375 [mm]
Half-pitch P/2 0,750 [mm]
According to ISO 68-1:1998, ISO 261:1998, ISO 724:1993
1) Without tolerancing.
2) According to DIN 13-19:1999-11
M10 - 6g
metric thread, external
The figure illustrating external threads with tolerance positions 'e', 'f' or 'g'
OTHER
Minor diameter of external thread
Basic d3 8,160 mm
Minimum d3 min 7,938 mm
Maximum d3 max 8,128 mm
Upper deviation (fundamental) es -32 μm
Deviation for stress calculation esnap -249 μm
The minimum truncation Cmin 0,188 mm
Minimum root radii Rmin 0,188 mm 2)
According to ISO 965−1:1998, ISO 965−3:1998
BASIC DIMENSIONS
Basic major diameter
Basic d 10 mm
Minimum dmin 9,732 mm
Maximum dmax 9,968 mm
Tolerance Td 236 μm
Upper deviation (fundamental) es -32 μm
Lower deviation ei -268 μm
Basic pitch diameter
Basic d2 9,026 mm
Minimum d2 min 8,862 mm
Maximum d2 max 8,994 mm
Tolerance Td2 132 μm
Upper deviation (fundamental) es -32 μm
Lower deviation ei -164 μm
Basic minor diameter
Basic d1 8,376 mm
Minimum 1)
Maximum d1 max 8,344 mm
Tolerance 1)
Upper deviation (fundamental) es -32 μm
Lower deviation 1)
According to ISO 965−1:1998, ISO 965−3:1998
1) Without tolerancing.
2) According to ISO 965−1:1998 standard recommendation the root profile shall have a nonreversing curvature, no portion of which shall have a radius of less than 0.125 × P.

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