1) Minimum depth of key engagement for set screws with nominal sizes ℓ above the dotted stepped line.
2) Minimum depth of key engagement for set screws with nominal sizes ℓ below the dotted stepped line.
3) Minimum depth of key engagement and length of dog point for set screws with nominal sizes ℓ above the dashed stepped line.
4) Minimum depth of key engagement and length of dog point for set screws with nominal sizes ℓ below the dashed stepped line.
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