Bulk 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws — Type F, Bright-Zinc Steel Opti Seal Hex Drive: 5 mm internal

Hex Drive: 5 mm internal hex for solid torque engagement and repeatable installation

The Type F thread cutting design ensures secure fit and minimal loosening

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Bulk 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws — Type F, Bright-Zinc Steel Opti Seal Hex Drive: 5 mm internalMonster Overview: These 5 16 18 Slotted Hex Washer Thread Cutting Screws deliver bolt level clamp force in a single self tapping partideal for trailer frames, dock decks, heavy gauge sheet metal, and hardwood to steel assemblies. The indented hex head with integral washer spreads load and seals oversize holes, while a deep flat blade slot gives a back up drive in tight quarters. Heat treated carbon steel carries a brilliant bright zinc electro plate,