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Square Washers — #8, Black Phosphate Finish, Steel, 25-Pack
- Mfg.#
- 37601
- Sku#
- 2649952
- Black Oxide Finish
- Designed for use with #8 diameter bolts and screws in fastening applications
- Constructed from steel, suitable as a replacement for traditional flat washers
- Features a black phosphate (black oxide) finish for a dark, oxidized appearance
- Suitable for indoor use and offers a decorative, rustic square profile
* Estimated stock levels as of Mon, Jun 1, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
These HILLMAN black phosphate square washers are steel hardware designed to fit over #8 diameter bolts and screws, offering a durable, low-profile solution when you need a dependable spacer or load-distributing washer. The black phosphate (black oxide) finish provides a muted, corrosion-resistant surface that blends with dark fasteners and hardware while helping reduce glare and wear on mating surfaces. Use them wherever a traditional flat washer would be called for — from furniture and cabinetry assembly to light fixture mounting and interior repair projects — to help distribute load and protect wood or metal from fastener heads. Their square shape also helps keep the washer aligned under heads or nuts in tight quarters, making installation easier in cramped or finished indoor spaces.
Specifications
General
| Application | Used to slide over #8 diameter bolt/screw.Can be used in replacement of any traditional flat washer. |
|---|---|
| Finish | Black Phosphate |
| Indoor/Outdoor | Indoor |
| Material | Steel |
| Pack Qty | 25 |
| Type | Square Washer |
Dimensions
| Diameter | #8 |
|---|---|
| Size | #8 |
Manufacturing Details
The following information is subject to change without notice
| Prop 65 Warning |
WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
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