Value Collection LWIS112USA-025BX Split Lock Washer

Product Description

The VALUE COLLECTION LWIS112USA-025BX is a steel split lock washer sized for 1-1/8 inch screws. It provides a helical spring-style locking action that resists fastener loosening caused by vibration and dynamic loads. The washer is finished bright and uncoated, making it suitable for general-purpose mechanical and structural fastening applications. Inside diameter runs from 1.129 to 1.153 inches, outside diameter from 1.847 to 1.853 inches, and thickness is 0.281 inches. These are installed by mechanics, millwrights, pipefitters, electricians, and HVAC technicians whenever a standard flat washer is insufficient to maintain clamp load over time.

This split lock washer is used across a wide range of industrial and commercial fastening scenarios where bolt or screw retention under vibration is a concern. Typical applications include equipment mounting, panel and enclosure assembly, pipe support bracketing, and mechanical component attachment. The inch-dimensioned sizing fits standard SAE and UNC or UNF 1-1/8 inch fastener hardware. This SKU is sold as a minimum order quantity of 25 pieces per order, with each package containing 1 unit of the specified quantity.

Key Features

• Split lock design creates helical spring tension that resists fastener back-out under vibration
• Inside diameter range of 1.129 to 1.153 inches fits standard 1-1/8 inch screw shanks
• Outside diameter range of 1.847 to 1.853 inches provides broad bearing surface for clamp load
• 0.281 inch thickness delivers consistent spring force across the fastener joint
• Bright uncoated steel finish for general-purpose use in dry or protected environments
• Inch measurement system for direct compatibility with standard SAE fastener hardware

Compatibility

Designed for use with 1-1/8 inch screws and bolts in inch-dimensioned fastener assemblies across general mechanical, industrial, and trade applications.

Installation Notes

Split lock washers are installed by placing the washer over the fastener shank and seating it flat against the mating surface before driving the fastener to final torque. Always power down or de-energize equipment before accessing fastener points in electrical or HVAC enclosures. Use the appropriate drive tool and torque specification for the fastener being used, as the washer itself does not define torque requirements. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking action.