Value Collection MP93779-1 Split Lock Washer 7/16 in 50-pack

Product Description

The VALUE COLLECTION MP93779-1 is a 7/16 inch split lock washer manufactured from 18-8 stainless steel. Split lock washers are installed under fastener heads or nuts to resist loosening caused by vibration and torque relaxation. The helical split design bites into both the fastener bearing surface and the mating material, maintaining clamp load over time. With an inside diameter ranging from 0.443 to 0.455 inches and an outside diameter ranging from 0.779 to 0.787 inches, this washer fits standard 7/16 inch fasteners. The 18-8 stainless steel construction provides corrosion resistance suitable for moisture-exposed and outdoor applications. This package contains 50 washers. Licensed trades and maintenance technicians use these in mechanical, electrical, plumbing, and HVAC equipment assembly and repair.

Split lock washers in 7/16 inch sizing are commonly used in residential and light commercial equipment installations, including panel mounting, equipment brackets, pipe hangers, duct supports, and general mechanical assemblies. The 18-8 stainless steel grade suits environments where mild corrosion resistance is required, such as exterior mechanical enclosures, rooftop HVAC units, pool equipment installations, and marine-adjacent applications. These are a standard fastener component for any trade technician maintaining a well-stocked service inventory.

Key Features

• 18-8 stainless steel construction resists corrosion in wet and outdoor service environments
• Helical split design maintains clamp load and resists fastener loosening under vibration
• Inside diameter 0.443 to 0.455 inches fits standard 7/16 inch fasteners
• Outside diameter 0.779 to 0.787 inches provides adequate bearing surface coverage
• Thickness of 0.109 inches meets standard split lock washer dimensional requirements
• Package quantity of 50 supports bulk service and installation work

Compatibility

Designed as a standard 7/16 inch split lock washer for use with any 7/16 inch fastener requiring vibration-resistant locking in general mechanical, HVAC, plumbing, electrical, and pool equipment applications.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torque is applied. Ensure the fastener, washer, and mating material are clean and free of debris before assembly. In corrosive or dissimilar-metal environments, verify compatibility between the stainless steel washer and the fastener material to avoid galvanic corrosion. Follow applicable mechanical codes and equipment manufacturer fastener specifications for proper installation.