The best 1/4-inch fender washer depends on the outer diameter, material, and quantity you need. For a 1-inch outside diameter, the Bates set offers 100 stainless steel washers, while the ZQZ option provides 116 pieces and the listed 304 stainless steel material. For a wider bearing surface, consider a 1-1/4-inch washer, such as the Makers Bolt zinc-plated steel pack. Compare the dimensions carefully: one bulk listing has a mismatch between its title and specifications.
| Product | Best For | Key Detail |
|---|---|---|
| Bates Stainless Steel | General-purpose 1-inch washers | 100 pieces; 1/4-inch ID, 1-inch OD |
| 304 Stainless Steel, 40 Pieces | Buyers checking thickness | 0.078-inch thick |
| 400-Piece Bulk Set | High-volume projects | Listed dimensions need verification |
| Makers Bolt Zinc-Plated Steel | Wider bearing surface | 1-1/4-inch OD; 100 pieces |
| ZQZ 304 Stainless Steel | Higher-count 1-inch option | 116 pieces |
Bates Stainless Steel Fender Washers
Best for: Buyers who want a straightforward 1-inch outside-diameter washer in a 100-piece pack. Each washer is listed with a 1/4-inch inner diameter and 1-inch outer diameter, making its size easy to compare with other options in this list.
The product is made from stainless steel and is described as rust-resistant for long-term use. Fender washers spread a fastener’s bearing area; this larger outer diameter can be useful when a standard washer would provide too little coverage.
Choose this if you want a 1-inch OD and a moderate pack quantity. The listing does not specify a stainless steel grade or washer thickness, so buyers who need those details should consider a product that lists them.
304 Stainless Steel, 40-Piece Set
Best for: Buyers who need a 1-inch outer diameter and want the listed thickness before ordering. The specifications give a 1/4-inch inner diameter, 1-inch outer diameter, and 0.078-inch thickness.
The set contains 40 washers made of 304 stainless steel, which the listing describes as offering increased corrosion resistance. It says the washers fit 1/4-inch bolts and M6 bolts, and identifies load distribution and a smooth bearing surface as their intended functions.
Choose this if the stated dimensions and material grade match your project. The pack has fewer pieces than the 100- and 116-piece options, so it may be less suitable for jobs requiring a large supply.
400-Piece Bulk Fender Washer Set
Best for: Buyers who prioritize a large stated quantity for repairs or repeated projects. The title describes 400 washers measuring 1/4 inch by 1-1/4 inches, while the feature details describe galvanized carbon steel with an outer diameter of 30 mm, inner diameter of 6 mm, and thickness of 1.5 mm.
The listing describes the washers as galvanized, with a smooth, burr-free surface and resistance to deformation. Its larger stated outer diameter may provide a wider contact area than a 1-inch washer.
Important limitation: The title and metric dimensions do not match exactly. Verify the seller’s current specifications and confirm the inner and outer diameters before choosing this set for a dimension-specific job.
Makers Bolt Zinc-Plated Steel Washers
Best for: Buyers who need a 1-1/4-inch outside diameter with a 1/4-inch fastener size. This 100-piece pack is described as zinc-plated steel and as meeting ASME B18.21.1 for industrial or commercial use.
The wider outer diameter gives this option more bearing area than the 1-inch washers in this guide. The listing explicitly states that it fits 1/4-inch-diameter screws and bolts, which helps when matching washers to fasteners.
Choose this if the larger outer diameter is important and zinc-plated steel suits the application. The provided features do not state a washer thickness or a specific corrosion-performance rating.
ZQZ 304 Stainless Steel Washers
Best for: Buyers seeking a larger count of 1-inch OD washers. The set contains 116 pieces, each listed with a 1/4-inch inner diameter and 1-inch outer diameter, and is described as high-strength 304 stainless steel.
The listing highlights corrosion resistance, uniform thickness, and smooth edges. It also describes the washers as helping distribute loads and reducing the effects of vibration and friction around nuts, bolts, and screws.
Consider the limitation: The provided specifications do not state the exact thickness. If thickness is important for fit or assembly, confirm it before ordering.
Buying Guide: How to Choose a 1/4-Inch Fender Washer
What Does “1/4 Inch” Refer To?
For these listings, 1/4 inch generally refers to the inner diameter or the fastener size. Check the product’s inner-diameter specification rather than relying on the title alone. A listing may describe a washer as fitting a 1/4-inch bolt, but dimensions should still be checked against the hardware and project requirements.
Should You Choose a 1-Inch or 1-1/4-Inch Outside Diameter?
The outside diameter determines how widely the washer spreads contact around a fastener. A 1-1/4-inch washer covers a broader area than a 1-inch washer, which may be preferable when the surrounding material needs more coverage. Confirm that the larger washer will fit the available space.
Which Material Is Better for the Application?
Stainless steel options include products described as 304 stainless, while the bulk and Makers Bolt listings use carbon or zinc-plated steel. Stainless steel is identified in the supplied product details as corrosion-resistant. Match the material to the environment and assembly needs; do not assume every stainless or plated washer has the same performance.
How Many Washers Should You Buy?
Pack counts range from 40 to 400 pieces in these listings. Smaller packs can suit limited projects, while larger packs may be more practical for repeated repairs. Quantity does not replace checking dimensions, thickness, or material.
Frequently Asked Questions
What is a 1/4-inch fender washer used for?
It is a flat washer with a relatively wide outside diameter, used with bolts, screws, or nuts to spread the bearing area around a fastener.
Does a 1/4-inch fender washer fit a 1/4-inch bolt?
Several listings specify a 1/4-inch inner diameter or compatibility with 1/4-inch bolts. Confirm the individual product dimensions before purchase.
Is a 1-1/4-inch washer larger than a 1-inch washer?
Yes. The 1-1/4-inch measurement is the outside diameter and is larger than a 1-inch outside diameter.
Which listed washer includes a thickness specification?
The 40-piece 304 stainless steel set lists a thickness of 0.078 inch. The bulk set gives a metric thickness of 1.5 mm, but its other dimensions should be verified because the listing details differ from its title.