Bolt with hexagon head and UNF thread
Bolt
2.3/4" x 3/8" UNF
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Product number: 9802
Bolt
2.3/4" x 7/16" UNF
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Product number: 612
Bolt
3.11/16" x 1/2" UNF - with bore hole for 7/64" split pin
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Product number: 667
MG
MGA (1955-62) ? MGB and MGB V8 (1962-80)