Description
The 3/4" USS Flat Washer is a general-purpose washer designed for use with 3/4-inch diameter bolts, screws, and studs. Built to United States Standard (USS) specifications, this washer features a wide outer diameter and durable thickness to evenly distribute clamping force, prevent surface damage, and enhance joint reliability in structural, mechanical, and industrial-grade assemblies.
Specifications:
-
Inner Diameter (I.D.): 13/16"
-
Outer Diameter (O.D.): 2"
-
Thickness: 3/16" (nominal)
-
Standard: USS (United States Standard)
-
Material: Typically low carbon steel; also available in stainless steel, brass, or specialty alloys
-
Finish Options: Plain, zinc-plated, hot-dip galvanized, black oxide, or other corrosion-resistant coatings
Key Features:
-
Wide Load-Bearing Surface: Large outer diameter reduces stress on softer base materials and helps prevent fastener pull-through.
-
Sized for 3/4" Fasteners: Clearance hole accommodates standard tolerances for easy installation and secure fit.
-
USS Fit Tolerance: Offers a looser fit compared to SAE washers—ideal for general-purpose and structural applications requiring flexibility.
-
Flat, Smooth Surface: Enhances torque uniformity and provides consistent clamping pressure.
-
Available in Multiple Finishes: Supports indoor, outdoor, marine, and corrosive environment applications based on selected coating.
Common Applications:
The 3/4" USS washer is widely used in medium to heavy-duty fastening scenarios, including:
-
Structural steel and construction framing
-
Heavy equipment and trailer assemblies
-
Agricultural and mining equipment
-
Utility and infrastructure projects
-
OEM machinery and field repair work
