Description
Screw M4x20 Socket Countersunk Head, ISO 10642 M4x20-A4 — BOLTON SKU 72459.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. BOLTON sources technical equipment and components for defence, aerospace, UAV/UAS, MRO and industrial programmes across the UAE, Saudi Arabia and Australia.
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Twice the length of the M4x10 in the same ISO 10642 A4 group, this size reaches through a deeper stack while keeping the same flush countersunk head. Hex socket drive lets the screw be tightened square to the cone seat, which matters when the head must pull down evenly.
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