9/16"
Nut
with 9/16" BSF thread - total height: 1/2", spanner size: 1/2" W (9/16" BS)
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Product number: 339830
Nyloc nut
with 9/16" BSF thread - total height: 23/32", spanner size: 1/2" W (9/16" BS)
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Product number: 321688
Austin Healey
BN1 and BN2 (1953-56)
Nyloc nut
9/16" BSF
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Product number: 537169
Slotted nut
with 9/16" BSF thread - total height: 11/16", spanner size: 1/2" W (9/16" BS)
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Product number: 324616