Gibraltar Z9180-BEV Beveled Round Flat Washer No. 10

Product Description

The GIBRALTAR Z9180-BEV is a No. 10 screw beveled round flat washer machined from 12L14 steel with a plain finish. The beveled profile seats flush against countersunk fastener heads, distributing clamp load evenly and reducing surface damage on mating parts. At 0.0938 inches thick with a 0.2031-inch inside diameter and a 0.5000-inch outside diameter, this washer meets close dimensional tolerances expected in precision mechanical assemblies. The plain finish leaves the steel bare, making it suitable for indoor or protected environments where post-installation coating or plating is applied by the installer. Machinists, millwrights, and general mechanical contractors use these washers in light-to-medium fastening applications.

This washer is sized for No. 10 screws and is used in residential and light commercial mechanical assemblies where a countersunk or beveled seating surface is required. Common applications include panel fastening, equipment enclosures, and precision sheet-metal work where flush fastener seating is specified. The inch measurement system and standard screw sizing make it compatible with most domestic fastener specifications.

Key Features

• Beveled profile designed for countersunk fastener head seating
• 12L14 steel construction provides consistent machinability and dimensional accuracy
• Inside diameter of 0.2031 inches fits No. 10 screw shank
• Outside diameter of 0.5000 inches for broad load distribution
• Thickness of 0.0938 inches for low-profile fitment
• Plain finish suitable for secondary coating or protected indoor use

Compatibility

Designed as an OEM-style replacement or standard fitment washer for No. 10 screw applications requiring a beveled round flat washer in inch-measurement fastener assemblies.

Installation Notes

Install with the beveled face oriented toward the fastener head to ensure proper seating against countersunk surfaces. Power down or de-energize any equipment before accessing fastened panels or assemblies. Use calibrated torque tools appropriate to the base material to avoid over-compression. Plain-finish steel washers installed in corrosive or outdoor environments should be coated or replaced with a corrosion-resistant finish variant.