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WILLYS MB
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1/4-20 x 3/8" (9.5mm) EC

5/16-18 UNC x 5/8" (16mm) EC

5/16-18 UNC X 3/4" (19.1mm) EC

5/16-18 UNC 1" (25.4mm) EC

5/16-24 UNF x 3/4"(19.1mm) EC