Value Collection MP30722-1 Split Lock Washer 1/4 in 316 Ss

Product Description

The VALUE COLLECTION MP30722-1 is a 316 stainless steel split lock washer sized for 1/4 inch screws. Split lock washers work by biting into both the fastener and mating surface under load, resisting loosening caused by vibration and thermal cycling. The 316 alloy provides strong corrosion resistance in wet, chlorinated, or chemically active environments, making it well suited for plumbing, pool equipment, and marine-adjacent mechanical assemblies. Inside diameter ranges from 0.44 to 0.45 inches, outside diameter ranges from 0.774 to 0.776 inches, and thickness is 0.109 inches. Each package contains 50 washers. These are installed by plumbers, HVAC technicians, electricians, and pool service professionals anywhere a vibration-resistant fastening is required.

This split lock washer is used wherever 1/4 inch fasteners require positive locking action in corrosive or high-moisture service environments. Typical applications include pump mounting hardware, pool equipment enclosures, conduit fittings, HVAC equipment panels, and general mechanical assemblies exposed to water, chemicals, or outdoor conditions. The 316 stainless steel grade is a standard choice for chlorine-exposed environments such as pool equipment rooms and coastal installations. The 50-piece package quantity suits service van restocking and small to mid-size installation jobs.

Key Features

• 316 stainless steel construction for superior corrosion resistance in wet and chemically active environments
• Split lock design resists fastener back-off under vibration and thermal cycling
• Sized for 1/4 inch screws with an ID of 0.44 to 0.45 inches
• Outside diameter of 0.774 to 0.776 inches with a thickness of 0.109 inches
• Packaged 50 pieces per unit for easy restocking
• Inch measurement system for compatibility with standard US fastener sets

Compatibility

Designed for use with standard 1/4 inch screw fasteners in inch-measurement applications. Suitable for use across plumbing, HVAC, pool, and electrical trade applications wherever a 316 stainless steel split lock washer of this dimension is specified.

Installation Notes

Install using standard hand tools; seat the washer flat against the mating surface before driving the fastener. Do not overtighten, as excessive torque can collapse the split and eliminate locking action. Follow applicable codes such as NEC or IPC when used as part of a mechanical assembly in electrical or plumbing systems. Ensure the mating surface and fastener are also corrosion-resistant when installing in chlorinated or saltwater-adjacent environments.