3/8-16X3 Unslotted Indented Hex Washer Thread Cutting Screw Type F Fully Threaded Zinc An 300 pcs 3748FW

For heavy-duty applications in sheet metal, aluminum, zinc, lead, cast iron, brass, and plastic, use these 3/8-16x3 unslotted indented hex washer thread cutting screws. Type F threaded screws cut threads in materials with a lower hardness by 10-20 Rockwell hardness, making them suitable for stainless steel. The indented hex washer head provides additional protection to mating surfaces and combines the benefits of a hex head with increased protection. Ideal for applications where high torque and thread cutting are required, these screws are a reliable choice for a wide range of industries and projects.

Top product features:

• Thread-cutting screws are used in heavy gauge sheet metal, aluminum, zinc, and lead die castings, as well as cast iron, brass, and plastic.
• Indented hex washer head offers advantages of hex head plus greater protection to mating surface.
• The screw is fully threaded.

Top product applications:

• Heavy gauge sheet metal assembly
• Aluminum die casting
• Cast iron assembly