Thread Rolls for the A12 Head
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Dimensions
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Helix angle in Head = 1° 50'
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A |
D1
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D2
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D3
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D4
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D5 max
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L1
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L2
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P
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?
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Allowable Component Lead
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inches
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2.520
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0.790
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3/4
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0.430
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2.756
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2.360
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1.970
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0.080
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60°
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Angle = 1° 5' - 2° 23'
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mm
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64
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20
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20
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11
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70
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60
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50
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2
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A |
| A |
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The following Thread Rolls may be ordered as standard on the A12 head
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ISO Metric
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Unified Fine UNF
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Whitworth Pipe BSP
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| A |
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Nominal Size x Pitch mm
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Whitworth Fine BSF
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Nominal Size x TPI
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M 6.0 - M 7.0 x 0.5
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Nominal Size x TPI
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G 1/8 x 28
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M 7.0 - M 8.0 x 0.5
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1/4 - 5/16 x 40
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G 1/4* x 19
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M 6.0 - M 7.0 x 0.75
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5/16 - 3/8 x 36
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M 8.0 - M 9.0 x 0.75
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7/16* x 36
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M 9.0 - M 10.0 x 0.75
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5/16 - 3/8 x 32
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M 10.0 - M 11.0* x 0.75
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7/16* - 1/2* x 32
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M 11.0* - M 12.0* x 0.75
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3/8 - 7/16* x 28
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M 8.0 - M 9.0 x 1.0
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1/2* x 28
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M 9.0 - M 10.0 x 1.0
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7/16* - 1/2* x 26
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M 10.0 - M 11.0* x 1.0
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3/8 - 7/16* x 24
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M 11.0* - M 12.0* x 1.0
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7/16* - 1/2* x 24
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M 10.0 - M 11.0* x 1.25
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7/16* - 1/2* x 22
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M 11.0* - M 12.0* x 1.25
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7/16* - 1/2* x 20
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M 12.0* x 1.5
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* For short threads up to 0.551" length including thread run out.
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