Hillman Fasteners 6420 Flat Washer No. 10 30 Pack

Product Description

The HILLMAN FASTENERS 6420 is a No. 10 zinc plated steel flat washer sold in a 30-piece pack. Flat washers distribute load across a fastened joint, reducing surface damage and preventing fastener pull-through on softer substrates. The zinc plating provides a baseline layer of corrosion resistance suitable for indoor and light-duty outdoor applications. These washers are installed by electricians, plumbers, HVAC technicians, and general contractors wherever a No. 10 fastener requires a bearing surface or load-spreading interface.

This washer is suited for residential and light commercial maintenance and repair work. Common applications include equipment mounting, panel work, and general mechanical assembly where a No. 10 screw or bolt is used. The 30-piece pack format makes it practical for service vans and job-site replenishment.

Key Features

• No. 10 size flat washer for load distribution at fastener bearing surfaces
• Zinc plated steel construction for corrosion resistance in dry and light-exposure environments
• 30-piece pack provides job-site quantity for routine service and repair tasks
• Compatible with No. 10 screws and bolts across standard hardware applications

Compatibility

Designed as a standard No. 10 flat washer for general-purpose use with No. 10 screws and bolts in mechanical, electrical, and plumbing assembly applications.

Installation Notes

Flat washers are installed by placing them over the fastener shank before driving the nut or screw head against the work surface. No special tools are required. Ensure the fastener and washer material are compatible with the installation environment to avoid galvanic corrosion. Zinc plated washers are not recommended for prolonged outdoor or wet exposure without additional corrosion protection.