Bulk 3/8″-16 Unslotted Indent Hex-Washer Serrated Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:700 Qty - 3/8-16 x 1-1/4" The washers feature external teeth

The washers feature external teeth that bite into the fastener head and the mating surface

Socket Cap Design: Cylindrical head allows high clamping pressure in tight-clearance assemblies

Thread Cutting: Type F point creates threads in pre-drilled holes

Finish / Lube: Passivated surface plus factory dry-wax (silicone-free) for consistent clamp load

Made from durable steel with a zinc plating

Bulk 3/8″-16 Unslotted Indent Hex-Washer Serrated Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:700 Qty - 3/8-16 x 1-1/4" The washers feature external teethMonster Overview: Built for trailer decks, dock framing, truck beds and heavy timber to steel joints, these 3 8 16 Unslotted Indent Hex Washer Serrated Thread Cutting Screws combine secure bite with vibration proof clamping. Heat treated carbon steel blanks are coated with lustrous bright zinc, hydrogen relief baked to IFI specs, then factory dry waxed for consistently low drive torque. Radial serrations under the integral washer dig into steel or