Thread Pitch Gauges - Metric & Inch Thread Pitch Gauges


Thread Pitch Gauges
- The Tri-Gauge Combo Tool will be $19.95 ea and they are offered in Inch & Metric.

TGCT – Metric

TGCT- Inch

The Metric unit includes BoltSizer blades ranging from 5mm to 24mm in diameter and a full set of common thread pitch gages from .75 - 3.

The American/Standard or Inch unit includes BoltSizer blades ranging from ¼” to 1” in diameter and a full set of common thread pitch gages from 8 – 28 TPI.

Size Chart

Metric	TGCT-Metric	Thread Sizes
Bolt Sizes (Diameter)	Wrench Sizes	Distance Between Threads in mm
5MM	8MM	0.75
6MM	10MM	0.8
8MM	13MM	1.0
9MM	15MM	1.25
10MM	17MM	1.30
11MM	18MM	1.40
12MM	19MM	1.50
14MM	22MM	1.60
16MM	24MM	1.75
20MM	30MM	1.80
24MM	36MM	2.0
		2.50
		3.0

American	TGCT-Inch	Thread Sizes
Bolt Sizes (Diameter)	Wrench Sizes	Threads per Inch
1/4"	1/4	8
5/16"	1/2	9
3/8"	9/16	10
7/16"	5/8	11
1/2"	3/4	12
9/16"	7/8	13
5/8"	1 5/16	14
3/4"	1 1/8	16
7/8"	1 5/16	18
1"	1 1/2	20
		24
		28