BSP, GAS THREAD
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CUTTING DIE 1/4BSP, 19TPI

GERD1419
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CUTTING DIE 1/8BSP, 28TPI

GERD1818
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CUTTING DIE 3/8BSP, 19TPI

GERD3819
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This thread was used by BSA for their fuel taps.

TAPS 1/4BSP, 19TPI

GERT1419
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Useful for most British petrol taps.

TAPS 3/8BSP, 19TPI

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