Superior Master Catalog
SCREWS FOR SINGER MACHINES ILLUSTRATIONS VARY IN SIZE TO SHOW DETAIL
REFER TO CLASS LISTINGS FOR SCREWS NOT
LISTED HERE.
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Dia. ol Thread
Thread Per lnch
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Item
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538
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507
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#50305
64
44
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538
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#50383
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#50438
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#50624
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24
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357
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80
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507
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56
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