Best M5 Parts Washers in 2026

Daisy
Last Updated: Jul 18, 2026

At a Glance: Our Top Picks for M5 Parts Washers

Small Parts Steel Flat Washer, Zinc Yellow Chromate Plated Finish, Grade 8, ASME B18.22.1, 1/2" Screw Size, 17/32" ID, 1-1/16" OD, 0.135" Thick (Pack of 50)
#TOP1
Small Parts Steel Flat Washer, Zinc Yellow Chromate
9.8
PM SCORE
Small Parts Steel Flat Washer, Zinc Plated Finish, ASME B18.22.1, No. 10 Screw Size, 1/4" ID, 9/16" OD, 0.049" Thick (Pack of 100)
#TOP2
Small Parts Steel Flat Washer, Zinc Plated Finish,
9.8
PM SCORE
Steel Flat Washer, Zinc Plated Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100)
#TOP3
Steel Flat Washer, Zinc Plated Finish, Asme B18.22.1,
9.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best M5 Parts Washers of 2026

Small Parts Steel Flat Washer, Zinc Yellow Chromate Plated Finish, Grade 8, Asme B18.22.1, 1/2" Screw Size, 17/32" Id, 1-1/16" Od, 0.135" Thick (Pack Of 50)

SMALL PARTS
B009OKFRKU
0.86 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Grade 8 steel is stronger than grade 5 steel and often used in applications where strength is the primary concern

Zinc yellow-chromate plating offers good corrosion resistance

Meets ASME B18.22.1 specifications

Small Parts Steel Flat Washer, Zinc Plated Finish, Asme B18.22.1, No. 10 Screw Size, 1/4" Id, 9/16" Od, 0.049" Thick (Pack Of 100)

SMALL PARTS
B009OJ78MQ
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Meets ASME B18.22.1 specifications

Steel Flat Washer, Zinc Plated Finish, Asme B18.22.1, 5/16" Screw Size, 11/32" Id, 11/16" Od, 0.065" Thick (Pack Of 100)

SMALL PARTS
B009OJGL60
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Meets ASME B18.22.1 specifications

Steel Flat Washer, Black Oxide Finish, Asme B18.22.1, 3/8" Screw Size, 13/32" Id, 13/16" Od, 0.065" Thick (Pack Of 100)

SMALL PARTS
B009OJHWL8
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Black oxide finish offers mild corrosion resistance and lubricity

Meets ASME B18.22.1 specifications

Small Parts 08Wsaepk Steel Flat Washer, Zinc Plated Finish, Asme B18.22.1, No. 8 Screw Size, 3/16" Id, 7/16" Od, 0.049" Thick (Pack Of 100)

SMALL PARTS
B009OJG5RK
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Meets ASME B18.22.1 specifications

Small Parts Steel Flat Washer, Plain Finish, Asme B18.22.1, 1/4" Screw Size, 9/32" Id, 5/8" Od, 0.065" Thick (Pack Of 100)

SMALL PARTS
B009OJIH7G
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Plain surface has no finish

Meets ASME B18.22.1 specifications

Small Parts 08Wsaebpk Steel Flat Washer, Black Oxide Finish, Asme B18.22.1, No. 8 Screw Size, 3/16" Id, 7/16" Od, 0.049" Thick (Pack Of 100)

SMALL PARTS
B009OJHOB6
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Black oxide finish offers mild corrosion resistance and lubricity

Meets ASME B18.22.1 specifications

Steel Flat Washer, Zinc Plated Finish, Asme B18.22.1, 1/4" Screw Size, 9/32" Id, 5/8" Od, 0.065" Thick (Pack Of 100)

SMALL PARTS
B009OJGHWI
0.46 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Meets ASME B18.22.1 specifications

Small Parts Steel Flat Washer, Zinc Yellow Chromate Plated Finish, Grade 8, Asme B18.22.1, 5/16" Screw Size, 3/8" Id, 7/8" Od, 0.065" Thick (Pack Of 100)

SMALL PARTS
B009OKELKC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Grade 8 steel is stronger than grade 5 steel and often used in applications where strength is the primary concern

Zinc yellow-chromate plating offers good corrosion resistance

Meets ASME B18.22.1 specifications

Top 10 parts washers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Small Parts 9

Top 10 parts washers Brands Pie Chart


We've carried out a comprehensive analysis of 2,231 reviews on parts washers, using our selection criteria to identify the best options in the automotive tools & equipment. Our findings reveal that most customers typically select parts washers priced around $6.60, with top brands including redsun, big red, aff, crc, vevor, atesmo, pwaccs, torin and toolcy and snow joe

Our team of expert editors reviewed these high-quality items and handpicked the top 9 parts washers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive tools & equipment category. These include joydoz, amazon.com, elite tool center, amazon warehouse, atesmo, pwaccs inc, toolcy, generator parts and avid cycles and northern tool + equipment .

We are dedicated to assisting our users in finding the right washers Products based on their needs, saving them considerable time when choosing which parts washers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.