Page 711 - Yamawa_European_Catalogue_YEU21

21. Thread Series

Intro
Unified Threads Conversion Table
Size Nominal Dia. Threads per inch Threads per
Column Column Coarse Fine Extra Fine Constant pitch series inch Pitch
inch mm (mm)
1 2 UNC UNF UNEF 4UN 6UN 8UN 12UN 16UN 20UN 28UN 32UN (25.4mm)
No. 0 0.0600 1.524 80 100 0.2540
No. 1 0.0730 1.854 64 72 80 0.3175 SP
No. 2 0.0860 2.184 56 64 72 0.3528
No. 3 0.0990 2.515 48 56 64 0.3969
No. 4 0.1120 2.845 40 48 60 0.4233
No. 5 0.1250 3.175 40 44 56 0.4536
No. 6 0.1380 3.505 32 40 UNC 48 0.5292
No. 8 0.1640 4.166 32 36 UNC 44 0.5773
No. 10 0.1900 4.826 24 32 UNF SL
No. 12 0.2160 5.486 24 28 32 UNF UNEF 40 0.6350
36 0.7056
1/4 0.2500 6.350 20 28 32 UNC UNF UNEF 32 0.7938
5/16 0.3125 7.938 18 24 32 20 28 UNEF 28 0.9071
3/8 0.3750 9.525 16 24 32 UNC 20 28 UNEF 27 0.9407
7/16 0.4375 11.112 14 20 28 16 UNF UNEF 32 24 1.0583
1/2 0.5000 12.700 13 20 28 16 UNF UNEF 32 20 1.2700
9/16 0.5625 14.288 12 18 24 UNC 16 20 28 32 19 1.3368 PO
5/8 0.6250 15.875 11 18 24 12 16 20 28 32 18 1.4111
11/16 0.6875 17.462 24 12 16 20 28 32 16 1.5875
3/4 0.7500 19.050 10 16 20 12 UNF UNEF 28 32 14 1.8143
13/16 0.8125 20.638 20 12 16 UNEF 28 32 13 1.9538
7/8 0.8750 22.225 9 14 20 12 16 UNEF 28 32 12 2.1167
15/16 0.9375 23.812 20 12 16 UNEF 28 32
1 1.0000 25.400 8 12 20 UNC UNF 16 UNEF 28 32 11.5 2.2087
1 1/16 1.0625 26.988 18 8 12 16 20 28 11 2.3091 ST
1 1/8 1.1250 28.575 7 12 18 8 UNF 16 20 28 10 2.5400
1 3/16 1.1875 30.162 18 8 12 16 20 28 9 2.8222
1 1/4 1.2500 31.750 7 12 18 8 UNF 16 20 28 8 3.1750
1 5/16 1.3125 33.338 18 8 12 16 20 28 7 3.6286
1 3/8 1.3750 34.925 6 12 18 UNC 8 UNF 16 20 28 6 4.2333
1 7/16 1.4375 36.512 18 6 8 12 16 20 28 5 5.0800
1 1/2 1.5000 38.100 6 12 18 UNC 8 UNF 16 20 28 4.5 5.6444
1 9/16 1.5625 39.688 18 6 8 12 16 20 4 6.3500 ROLL
1 5/8 1.6250 41.275 18 6 8 12 16 20
1 11/16 1.6875 42.862 18 6 8 12 16 20
1 3/4 1.7500 44.450 5 6 8 12 16 20
1 13/16 1.8125 46.038 6 8 12 16 20
1 7/8 1.8750 47.625 6 8 12 16 20
1 15/16 1.9375 49.212 6 8 12 16 20
2 2.0000 50.800 4.5 6 8 12 16 20 CARBIDE
2 1/8 2.1250 53.975 6 8 12 16 20
2 1/4 2.2500 57.150 4.5 6 8 12 16 20
2 3/8 2.3750 60.325 6 8 12 16 20
2 1/2 2.5000 63.500 4 UNC 6 8 12 16 20
2 5/8 2.6250 66.675 4 6 8 12 16 20
2 3/4 2.7500 69.850 4 UNC 6 8 12 16 20
2 7/8 2.8750 73.025 4 6 8 12 16 20
3 3.0000 76.200 4 UNC 6 8 12 16 20 LONG
3 1/8 3.1250 79.375 4 6 8 12 16
3 1/4 3.2500 82.550 4 UNC 6 8 12 16
3 3/8 3.3750 85.725 4 6 8 12 16
3 1/2 3.5000 88.900 4 UNC 6 8 12 16
3 5/8 3.6250 92.075 4 6 8 12 16
3 1/4 3.7500 95.250 4 UNC 6 8 12 16
3 7/8 3.8750 98.425 4 6 8 12 16 HAND
4 4.0000 101.600 4 UNC 6 8 12 16
4 1/8 4.1250 104.775 4 6 8 12 16 TAPS
4 1/4 4.2500 107.950 4 6 8 12 16
4 3/8 4.3750 111.125 4 6 8 12 16
4 1/2 4.5000 114.300 4 6 8 12 16
4 5/8 4.6250 117.475 4 6 8 12 16
4 3/4 4.7500 120.650 4 6 8 12 16
4 7/8 4.8750 123.825 4 6 8 12 16
5 5.0000 127.000 4 6 8 12 16 EG (STI)
5 1/8 5.1250 130.175 4 6 8 12 16
5 1/4 5.2500 133.350 4 6 8 12 16
5 3/8 5.3750 136.525 4 6 8 12 16
5 1/2 5.5000 139.700 4 6 8 12 16
5 5/8 5.6250 142.875 4 6 8 12 16
5 3/4 5.7500 146.050 4 6 8 12 16 SPECIAL
5 7/8 5.8750 149.225 4 6 8 12 16 THREADS,
6 6.0000 152.400 4 6 8 12 16
GAUGES
General size list of metric trapezoidal threads
THREAD
1.5 2 3 4 5 6 7 8 10 12
Tr 18 1.5 MILLS
Tr 19 1.5 2
Tr 10 1.5 2
Tr 11 2 3
Tr 12 2 3
Tr 14 2 3
Tr 16 2 4 DIES
Tr 18 2 4
Tr 20 2 4
Tr 22 3 5 8
Tr 24 3 5 8
Tr 26 3 5 8
Tr 28 3 5 8 CENTER
Tr 30 3 6 10
Tr 32 3 6 10 DRILLS
Tr 34 3 6 10
Tr 36 3 6 10
Tr 38 3 7 10
Tr 40 3 7 10
Tr 42 3 7 10 Technical
Tr 44 3 7 12
Tr 46 3 8 12 info
Tr 48 3 8 12
709