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System of Measurement
System of Measurement
Metric
Thread Size
Thread Size		Show
M18
Thread Size
Thread Size		Hide
0000-160
000-120
00-90
00-96
0-80
1-64
1-72
2-56
2-64
3-48
3-56
4-40
4-48
5-40
5-44
6-32
6-40
6-48
6-80
8-32
8-36
8-40
10-24
10-32
12-24
12-28
1/8"-20.8
1/8"-41.7
9/64"-20.8
9/64"-41.7
5/32"-21.3
3/16"-42.7
3/16"-100
7/32"-20.8
1/4"-8
1/4"-12
1/4"-16
1/4"-18
1/4"-20
1/4"-28
1/4"-32
1/4"-40
1/4"-80
1/4"-100
5/16"-18
5/16"-24
5/16"-28
5/16"-32
11/32"-24
3/8"-5
3/8"-8
3/8"-10
3/8"-12
3/8"-16
3/8"-20
3/8"-24
3/8"-32
3/8"-40
0.391"-32
7/16"-12
7/16"-14
7/16"-20
7/16"-24
7/16"-28
15/32"-32
0.469"-32
1/2"-4
1/2"-5
1/2"-6
1/2"-8
1/2"-10
1/2"-13
1/2"-20
1/2"-28
9/16"-12
9/16"-18
0.586"-32
5/8"-5
5/8"-6
5/8"-8
5/8"-10
5/8"-11
5/8"-18
5/8"-24
5/8"-27
0.628"-20
0.664"-32
11/16"-24
11/16"-27
3/4"-4
3/4"-4 1/2
3/4"-5
3/4"-6
3/4"-8
3/4"-10
0.750"-14
3/4"-16
3/4"-18
3/4"-20
0.781"-32
0.803"-14
0.830"-14
0.855"-14
7/8"-6
7/8"-9
7/8"-14
7/8"-20
0.880"-14
0.899"-14
0.908"-14
0.960"-14
0.965"-14
0.969"-32
1"-2
1"-3 1/2
1"-4
1"-5
1"-6
1"-8
1"-10
1"-12
1"-14
1.035"-14
1.040"-14
1 1/16"-12
1 1/16"-14
1.108"-14
1.120"-14
1 1/8"-5
1 1/8"-7
1 1/8"-8
1 1/8"-12
1.125"-14
1.173"-18
1 1/4"-4
1 1/4"-5
1 1/4"-7
1 1/4"-8
1 1/4"-12
1.312"-18
1 5/16"-12
1 3/8"-4
1 3/8"-6
1 3/8"-8
1 3/8"-12
1.376"-18
1 1/2"-2
1 1/2"-4
1 1/2"-5
1 1/2"-6
1 1/2"-8
1 1/2"-10
1 1/2"-12
1.563"-18
1 5/8"-5 1/2
1 5/8"-8
1 5/8"-12
1 3/4"-5
1 3/4"-8
1 3/4"-12
1.767"-18
1 7/8"-5
1 7/8"-8
1 7/8"-12
1.967"-18
2"-2
2"-4
2"-4 1/2
2"-5
2"-8
2"-12
2.157"-18
2 1/4"-2
2 1/4"-4
2 1/4"-4 1/2
2 1/4"-8
2 1/4"-12
2.360"-18
2 1/2"-3
2 1/2"-4
2 1/2"-8
2 1/2"-12
2.548"-18
2 3/4"-4
2 3/4"-12
2.751"-18
2.933"-12
3"-4
3"-12
3.137"-12
3 1/2"-4
3.918"-12
4.716"-12
M0.5
M0.8
M0.9
M1
M1.2
M1.4
M1.6
M1.7
M1.8
M2
M2.2
M2.5
M2.6
M3
M3.5
M4
M4.2
M4.5
M5
M6
M6.3
M7
M8
M9
M10
M11
M12
M14
M15
M16
M17
M18
M20
M22
M24
M25
M26
M27
M28
M30
M32
M33
M34
M35
M36
M38
M39
M40
M42
M45
M48
M50
M52
M55
M56
M60
M62
M63
M65
M68
M70
M72
M75
M80
M85
M90
M95
M100
M105
M110
M115
M120
M125
M130
M135
M140
M145
M150
M155
M160
M165
M170
M180
M190
M200
M220
M240
M260
M280
1/4 
3/8 
1/2 
3/4 
1
1 1/4
1 1/2
2
PG-7
PG-9
PG-11
PG-13.5
PG-16
PG-21
PG-29
PG-36
PG-42
PG-48
Unthreaded
W 21.8
Thread Pitch
Thread Pitch
testString
1 mm
1.5 mm
2.5 mm
8 mm
Thread Type
Thread Type
Metric
Metric Ball
Spark Plug
Head Type
Head Type
SocketHex
FlatHeadless
Thread Spacing
Thread Spacing
Coarse
Fine
Extra Fine
Fastener Strength Grade/Class
Fastener Strength
Grade/Class
Class 4
Class 8
Class 8.8
Class 10
Class 10.9
Class 12
Class 12.9
Class 17H
Grade B7
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Hex Nut Profile
Hex Nut Profile
StandardThin
High
Drive Style
Drive Style
External HexHex
Thread Direction
Thread Direction
Right Hand
Specifications Met
Specifications Met
ASTM
click to learn more about ASTM
DIN
click to learn more about DIN
ISO
click to learn more about ISO
MA
NAS
click to learn more about NAS
Head Width
Head Width
default
27 mm
Head Height
Head Height
default
8mm
11.5 mm
18mm