(10) M4-0.7 Serrated Flange Lock Nuts 4mm x .7 Spin Whiz Nut M4x.7

Serrated Flange Lock Nuts. Hex / Wrench Size:7mm. Locking Feature:Serrations make this a lock nut. Nut Height / Thickness:4.5mm. NOTpreviously rejected for quality issues or rescued from a scrap yard.

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