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Nutsizer Electrical Size-It Stainless Steel Screw Gauges Additional Promo Items
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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 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
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