Countersunk Bolts. M4 / M5 / M6 Countersunk Socket Screws – A4 Marine Grade Stainless Steel (Allen Key Bolts). Head Type: Countersunk. Sizes Available: M4 × 0.7mm, M5 × 0.8mm, M6 × 1.0mm. Countersunk head for a flush, clean finish.
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