Value Collection 87925178 5/16 in Split Lock Washer 18-8 Ss

Product Description

The VALUE COLLECTION 87925178 is a 5/16 inch split lock washer made from 18-8 stainless steel. Also known as a spring lock washer, it is designed to resist loosening caused by vibration and torque in bolted assemblies. The helical split creates spring tension when the fastener is tightened, biting into both the mating surface and the fastener bearing face to maintain clamp load. Inside diameter ranges from 0.314 to 0.322 inches, outside diameter ranges from 0.125 to 0.583 inches, and thickness is 0.078 inches. Plumbers, electricians, HVAC technicians, and general mechanical tradespeople install these washers in a wide range of equipment and structural fastening applications.

This split lock washer is suited for use in residential and commercial applications where stainless steel corrosion resistance is required. Typical installations include pipe hangers, equipment mounting, electrical enclosures, and HVAC component assembly where exposure to moisture, mild chemicals, or outdoor conditions makes carbon steel hardware unsuitable. Sold in a minimum order quantity of 100 pieces per order, making them appropriate for stocking by service contractors and maintenance shops.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Spring lock washer profile resists loosening from vibration and dynamic loads
• Inside diameter range: 0.314 to 0.322 inches for 5/16 inch fastener fitment
• Outside diameter range: 0.125 to 0.583 inches
• Thickness: 0.078 inches
• Meets ASME, ANSI, BS, DIN, JIS, and NFE standards

Compatibility

Designed for use with 5/16 inch screws and bolts in standard inch-measurement fastening applications where a split lock washer is specified.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torque is applied. De-energize electrical equipment and shut off fluid systems before servicing any fastened connections in live systems. Use appropriate hand tools or power drivers set to a controlled torque range for the fastener size and material. Stainless steel fasteners are susceptible to galling — apply an anti-seize compound where reusability is required.