Bulk 5/16″-18 Unslotted Indent Hex-Washer Serrated Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:1500 Qty - 5/16-18 x 1" Drive: Standard #3 Phillips for

Drive: Standard #3 Phillips for reliable

ideal for professionals and contractors

professional look—ideal for structural assemblies

these washers are designed to resist loosening caused by vibration and provide exceptional corrosion resistance

Bulk 5/16″-18 Unslotted Indent Hex-Washer Serrated Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:1500 Qty - 5/16-18 x 1" Drive: Standard #3 Phillips forMonster Overview: Ideal for steel framing, trailer decks, dock construction and timber to steel joints, these 5 16 18 Unslotted Indent Hex Washer Serrated Thread Cutting Screws combine quick assembly with shake proof clamping. Heat treated carbon steel blanks boast a bright zinc electro plate, are hydrogen relief baked, then factory dry waxed to keep drive torque low. A ring of radial serrations under the washer bites into the mating surface to resist