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For Threads per Inch For Threads per Inch |
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For Thread Pitch For Thread Pitch |
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For Gear Type For Gear Type |
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Container Container |
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Determine threads per inch and thread pitch on a variety of external and internal threads.
Folded | |||||||||||
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For Use With | For Thread Type | For Thread Location | For Threads per Inch | For Thread Pitch | No. of Identifiers | Lg. | Wd. | Manufacturer | Manufacturer Model No. | Each | |
Inch | |||||||||||
Steel | |||||||||||
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF | External/Internal | 4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 | __ | 30 | 2 3/4" | 1/2" | __ | __ | 0000000 | 000000 |
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF | External/Internal | 4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84 | __ | 51 | 2 1/4" | 2 1/4" | __ | __ | 0000000 | 00000 |
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF | External/Internal | 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42, 48, 50, 56, 60 | __ | 30 | 2 3/4" | 1/2" | __ | __ | 000000 | 00000 |
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF | External/Internal | 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40 | __ | 22 | 2 3/4" | 1/2" | __ | __ | 000000 | 00000 |
Inch/Metric | |||||||||||
Steel | |||||||||||
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF/Metric | External/Internal | 4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 28, 29, 30, 32, 34, 36, 38, 40, 42 | 0.4 mm, 0.5 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.9 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm | 51 | 2 3/4" | 1/2" | __ | __ | 0000000 | 00000 |
Screws, Bolts, Threaded Rods, Nuts | UNC/UNF/Metric | External/Internal | 4, 6, 8, 10, 11, 11 1/2, 12, 13, 16, 20, 28, 32, 40, 56 | 0.5 mm, 0.75 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 6 mm | 28 | 2 3/4" | 1/2" | __ | __ | 0000000 | 00000 |
Metric | |||||||||||
Steel | |||||||||||
Screws, Bolts, Threaded Rods, Nuts | Metric | External/Internal | __ | 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.25 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.75 mm, 1.8 mm, 1.9 mm, 2 mm, 2.5 mm | 28 | 2 1/2" | 1/2" | Starrett | 156M | 0000000 | 00000 |
Screws, Bolts, Threaded Rods, Nuts | Metric | External/Internal | __ | 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.25 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.75 mm, 1.8 mm, 1.9 mm, 2 mm, 2.5 mm | 28 | 2 3/4" | 1/2" | __ | __ | 0000000 | 00000 |
Screws, Bolts, Threaded Rods, Nuts | Metric | External/Internal | __ | 0.4 mm, 0.5 mm, 0.7 mm, 0.75 mm, 0.8 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm | 20 | 2 3/4" | 1/2" | __ | __ | 0000000 | 00000 |
Pipe Size | |||||||||||
Steel | |||||||||||
Screws, Bolts, Threaded Rods | Whitworth | External/Internal | 4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 34, 36, 40, 48, 60 | __ | 28 | 2 3/4" | 3/4" | Mitutoyo | 188-102 | 000000 | 00000 |
Screws, Bolts, Threaded Rods | Whitworth | External/Internal | 4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60, 62 | __ | 28 | 2 3/4" | 5/8" | __ | __ | 0000000 | 00000 |
Acme | |||||||||||
Stainless Steel | |||||||||||
Screws, Bolts, Threaded Rods, Nuts | Acme | External/Internal | 1, 1 1/3, 1 1/2, 1 3/4, 2, 2 1/2, 3, 3 1/2, 4, 5, 6, 7, 8, 9, 10, 12 | __ | 16 | 4 3/4" | 1" | __ | __ | 0000000 | 00000 |
Set includes calipers and gauges to identify external and internal threads.
Container | |||||||
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For Use With | For Thread Type | For Thread Location | Type | Material | Includes | Each | |
Inch, Metric, Pipe Size | |||||||
Steel | |||||||
Screws, Bolts, Threaded Rods, Nuts, Pipe | NPT, UNC, UNF, BSPT, BSPP, Metric | External/Internal | Folding Case | Plastic | Caliper, Instruction Book, Two Steel Angle Gauges, Two Steel Gauges | 000000 | 000000 |
Identify Acme threads and use as a guide while grinding and cutting Acme threads to a 29° included angle.
For Use With | For Thread Location | For Threads per Inch | Wd. | Ht. | Thick. | Each | |
Steel | |||||||
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Screws, Bolts, Threaded Rods | External | 1, 1 1/3, 1 1/2, 1 3/4, 2, 2 1/2, 3, 4, 5, 6, 7, 8, 9, 10 | 3 3/8" | 1 5/8" | 7/64" | 0000000 | 000000 |
In addition to checking NPT and BSPT pipe sizes, use the two included gauges for measuring thread pitch.
For Thread Type | For Pipe Size | For Gender | Wd. | Ht. | Thick. | Thread Size Identifier Material | Thread Pitch Identifier Material | Color | Each | |
BSPT, NPT | 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2 | Female, Male | 9" | 4 1/4" | 1/4" | Plastic | Steel | Blue | 000000 | 00000 |
Inspect fasteners and verify threads with this checker. It includes three wires for each of the pitch diameters. Select the wire that best fits the threads; then calculate the pitch diameter with the equations provided.
Wire | ||||||||||||
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For Use With | For Thread Type | For Thread Location | For Threads per Inch | For Thread Pitch | For Acme Threads per Inch | No. of Wires | Lg. | Material | Container | Container Material | Each | |
Inch/Metric/Acme | ||||||||||||
Screws, Bolts, Threaded Rods, Pipe | NPT, UNC, UNF, Metric, Acme | External | 3, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 7, 7 1/2, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 16, 18, 20, 24, 27, 28, 32, 36, 40, 44, 48 | 0.5 mm, 0.6 mm, 0.7 mm, 0.75 mm, 0.8 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm | 3, 4, 5, 6, 8, 10, 12, 14, 16 | 48 | 2 3/4" | Stainless Steel | Pouch | Vinyl | 000000 | 000000 |
When replacing a gear, use these gauges to identify pressure angle, pitch, and module.
For Gear Type | For System of Measurement | For Pitch | For Module | Number of Identifiers | Material | Each | |
For 14 1/2° Pressure Angles | |||||||
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Spur Gears | Inch | 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 36, 40, 48, 64, 80 | __ | 22 | Steel | 0000000 | 000000 |
Spur Gears | Metric | __ | 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 2.75, 3, 3.25, 3.5, 3.75, 4, 4.5, 5 | 16 | Steel | 0000000 | 00000 |
For 14 1/2° and 20° Pressure Angles | |||||||
Spur Gears, Bevel Gears, Helical Gears, Miter Gears | Inch | 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32 | __ | 22 | Stainless Steel | 0000000 | 000000 |
Spur Gears, Bevel Gears, Helical Gears, Miter Gears | Metric | __ | 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8 | 26 | Stainless Steel | 0000000 | 000000 |