Hillman Fasteners 6423 Flat Washer 1/4 Inch 20 Pack

Product Description

The HILLMAN FASTENERS 6423 is a zinc plated steel flat washer sold in a 20-piece pack. Flat washers distribute load across a fastened joint, reducing stress on the mating surface and preventing pull-through on softer materials. The 1/4 inch bore size fits standard 1/4-20 and 1/4-28 fastener shanks. The zinc plating provides basic corrosion resistance suitable for general indoor and light outdoor applications. Electricians, plumbers, HVAC technicians, and general contractors keep flat washers on hand for everyday assembly and equipment mounting tasks.

This washer is used in a wide range of light commercial and residential trade applications, including equipment mounting, panel work, conduit support, and general mechanical assembly. The 1/4 inch size is one of the most common fastener dimensions encountered in HVAC equipment, electrical enclosures, and plumbing fixture installations. The 20-piece pack format is suited for small jobs or restocking a service vehicle parts kit.

Key Features

• 1/4 inch bore size fits standard 1/4 inch fastener shanks
• Zinc plated steel construction for basic corrosion resistance
• Flat washer profile distributes clamping load and reduces surface damage
• 20-piece pack quantity for small job or service kit use
• Weighs 1.3 pounds per pack

Compatibility

Designed for use with standard 1/4 inch bolts, screws, and threaded fasteners in general mechanical, electrical, HVAC, and plumbing assembly applications.

Installation Notes

Flat washers are installed between the fastener head or nut and the mating surface before tightening. Always verify the washer inner diameter matches the fastener shank diameter before assembly. Use appropriate hand tools or a torque wrench calibrated for the fastener grade and application. Follow applicable codes such as NEC or IPC when using fasteners in electrical or plumbing installations.