NEIKO 50400A Stainless Steel Lock and Flat Washer Assortment | 350 Piece Set | 12 Different Sizes in Spring Lock and Flat Design | Prevent Loose Fasteners
Condition: New
$13.99
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Availability:
In Stock.
Arrives
Nov 4 – Nov 5
At a glance
- Condition
- New
- Size
- 350 Piece
- Style
- Lock & Flat Washer
- Pattern
- SAE
- Model
- 50400A
- Dimensions
- 8.1 x 4.15 x 1.15 in
- Weight
- 11.84 oz
- In the box
- Split locksFlat Washers
Features 5
- GALVANIZED STAINLESS STEEL: These lock and flat washers provide excellent protection and security for nuts and bolts. They are made with galvanized stainless steel for long-term use and outstanding durability.
- VERSATILE & COMPATIBLE: These assorted washers come in multiple sizes to fit all your screws, nuts, and bolts. Each washer features a solid bearing surface to prevent the nut or bolt head from tearing through the material.
- OPTIMAL SURFACE AREA: Each stainless-steel flat or lock washer easily deflects the screw or bolt load, spreading the weight evenly for a secure and sure fit. These washers for screws and bolts are ideal for use at home or in the workshop.
- THE RIGHT SIZE: This set of washers contains a wide variety of sizes. It includes lock washers in sizes #6, #8, #10, 1/4", 5/16", and 3/8" and flat washers in sizes #6, #8, #10, 1/4", 5/16", and 3/8".
- CONVENIENT STORAGE: Keep your washers ready for your next home or automotive project. This 350-piece set comes in a convenient, sturdy plastic box with divided compartments for easy storage and an inside lid display for easy organization.
Description
Set comes with the following quantity of sizes: (50) 6 Lock Washer, (40) 8 Lock Washer, (30) 10 Lock Washer, (25) 1/4" Lock Washer, (15) 5/16" Lock Washer, (15) 3/8" Lock Washer, (50) 6 Flat Washer, (40) 8 Flat Washer, (30) 10 Flat Washer, (25) 1/4" Flat Washer, (15) 5/16" Flat Washer, (15) 3/8" Flat Washer
Specs 30
| Material | Stainless Steel |
|---|---|
| Outside Diameter | 0.38 inches |
| Washer Type | Flat |
| Exterior Finish | Stainless Steel |
| Item Thickness | 0.05 inches |
| Size Name | 350 Piece |
| Item Weight | 11.84 ounces |
| Number of Pieces | 350 |
| Item Dimensions | 8.1 x 4.15 x 1.15 inches |
| Item Diameter | 0.38 inches |
| Material Type | Stainless Steel |
| Metal Type | Stainless Steel |
| Finish Types | Silver |
| Washer Compatibility | inch bolts, machine screws |
| Washer Application | automotive, home |
| Screw Head Style | Flat |
| Thread Size | #6, #8, #10, 1/4", 5/16", 3/8" |
| Fastener Type | Flat Washer |
| Brand | NEIKO |
| UPC | 816914021426 |
| Manufacturer | Neiko |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Global Trade Identification Number | 26 |
| Item Type Name | Lock and Flat Washer Assortment |
| Model | 50400A |
| Number Of Items | 1 |
| Part Number | 50400A |
| Set Name | 350 Piece Set |
| Color | Silver |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 4 – Nov 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
A nice product and reasonably priced, well packed.
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
Nice selection
Reviewed in the United States on November 2, 2025 by David Fortney
Gift He Loved It
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
This was a gift for my dad & he loved it thank you!
Reviewed in the United States on November 12, 2025 by Chelsey
Good parts assortment for the price
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
This is a nice assortment and the quality appears to be good. I like that the combined screw/flat washer/lock washer pieces were sorted and separately bagged. I purchaed a better storage container (actually a tackle box with removeable dividers) to hold and sort these and my various existing flat and lock washers.
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Reviewed in the United States on March 25, 2024 by S. Fox
Nice assortment of washers. Good price.
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
Jjust what I needed.nice assortment of washers for my home garage.Look decent.
Reviewed in the United States on May 6, 2026 by TREVINORJR
quality
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
Perfect size and quality at a great price'
Reviewed in the United States on February 6, 2026 by wilsondoctor
Great washer kit at a great price.
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
Neiko doesn't disappoint.This was a nice kit with a large quantity of regular and pressure washers of assorted sizes for a decent price.
Reviewed in the United States on June 16, 2024 by Gadgeteer
Nice product
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
Goid quality
Reviewed in the United States on November 25, 2025 by ken kellogg
Good washer set, crummy box
Size: 350 Piece
Style: Lock & Flat Washer
Pattern Name: SAE
I really like the washer set. Plenty of good sizes. I use them all over the place. I am taking off a star because such a good set really needs a better box. The latches are small and do not stay closed. It has opened in my toolbox. I am taking off another star because when the box stays closed, the washers slide under the compartment dividers into another bin. Unfortunately I am off to find a better way to organize this. Frustrating because I purchased the set because I thought it was a good value and I wanted to keep it on my boat. I think if you kept this on a shelf, always kept it level, and taped up the box it would probably be fine.
...
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Reviewed in the United States on December 16, 2021 by Dave