Hillman Fasteners 830506 Ss Commercial Flat Washer 3/8 in 100PK

Product Description

The HILLMAN FASTENERS 830506 is a stainless steel commercial flat washer supplied in a 100-piece pack. Designed for use with 3/8-inch fasteners, each washer features a 3/8-inch inner diameter and a 7/8-inch outer diameter. The stainless steel construction resists corrosion and oxidation, making these washers suitable for outdoor, marine, and high-moisture environments. Plumbers, electricians, HVAC technicians, and general contractors reach for commercial flat washers to distribute load across a fastener assembly, protect surfaces from damage, and reduce the risk of loosening under vibration.

These flat washers are commonly used in residential and commercial construction, mechanical assemblies, and utility installations. Any application requiring a 3/8-inch bolt or screw can benefit from the added bearing surface these washers provide. The 100-piece pack format suits both service vans stocking consumables and job-site supply bins. Stainless steel construction makes them a go-to choice when galvanic compatibility or corrosion resistance is a priority in the installation environment.

Key Features

• 3/8-inch inner diameter fits standard 3/8-inch fasteners
• 7/8-inch outer diameter provides broad load distribution
• Stainless steel construction for corrosion and oxidation resistance
• Commercial flat washer profile for consistent dimensional tolerances
• 100-piece pack quantity supports high-volume or repeat-use applications

Compatibility

Designed as a commercial-grade flat washer for use with 3/8-inch bolts, screws, and threaded fasteners across general construction, mechanical, and utility applications.

Installation Notes

Flat washers are installed by general contractors, plumbers, electricians, and HVAC technicians as part of standard fastener assemblies. Place the washer over the fastener before threading the nut or driving into the substrate. No special tooling is required beyond standard hand or power tools appropriate to the fastener type. Ensure the mating fastener material is compatible with stainless steel to avoid galvanic corrosion in wet or dissimilar-metal environments.