Bulk 5/16″-18 Phillips Flat-Head Thread-Cutting Screws — Type F, Bright-Zinc Steel Length:300 Qty - 5/16-18 x 3-1/2" Zinc CR+3 Bake Finish: Provides

Zinc CR+3 Bake Finish: Provides moderate corrosion resistance and reduces hydrogen embrittlement risk

while the Zinc Yellow CR+3 coating enhances corrosion resistance

Standards: Manufactured to DIN 7991 / ISO 10642 for true countersunk geometry

Use a correctly sized hex key (Allen wrench) to prevent stripping the drive

Secure Hex Drive: Uses standard hex wrenches for stable and effortless installation

Bulk 5/16″-18 Phillips Flat-Head Thread-Cutting Screws — Type F, Bright-Zinc Steel Length:300 Qty - 5/16-18 x 3-1/2" Zinc CR+3 Bake Finish: ProvidesMonster Overview: These 5 16 18 Phillips Flat Head Thread Cutting Screws pair bolt level strength with flush, snag free seatingideal for trailer decks, dock boards, steel flooring and hardwood to steel assemblies. Heat treated carbon steel receives a brilliant bright zinc electro plate, is hydrogen relief baked to eliminate embrittlement, and finished with a factory dry wax film for reliably low drive torque. The Type F fluted point taps clean