Skip to main content
Home / Washers / 304 Stainless Steel Spring Washers / 316 Spring Lock Washers / 201 Spring Washers / Flat Washers M2 M2.5 M3 M4-M36

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material Grade 304, 316, and 201 Stainless Steel
Available Sizes M2, M2.5, M3, M4 through M36
Surface Finish Polished and Smooth
Hardness HV 200-300 (Standard Spring Temper)
Corrosion Resistance High (Especially Grade 316)
Application Type Locking and Load Distribution
Thread Compatibility Metric Coarse Thread
Package Options Bulk Bags or Boxed Sets
Temperature Range -50°C to +400°C
Certification ISO 9001 Manufactured

6 reviews

A

Anonymous

Mar 21, 2026

Rating: 4/5

Good quality, fast shipping

The 304 stainless steel washers are solid and well-made. I used them for a kitchen appliance assembly. One star off because the packaging was slightly damaged, but the product inside was fine.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exact sizing as described

Needed specific M3 spring lock washers for an electronics enclosure. These fit snugly and provide excellent tension. The split is clean and consistent across the whole batch.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Solid hardware

These washers do exactly what they are supposed to do. The metal feels durable and not brittle. I wish they offered a mixed size kit, but buying individual sizes works fine too.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Great bulk value

Purchased a large quantity of M6 flat washers for our workshop. The price per unit is unbeatable for this quality of stainless steel. We will definitely reorder.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Essential for vibration resistance

Using these on a motor mount where vibration is high. The spring action holds the nuts tight without loosening over time. Very satisfied with the performance.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for marine projects

I bought the 316 grade washers for a boat repair job. They fit perfectly on M8 bolts and show no signs of rust after three months in saltwater spray. Highly recommended for outdoor use.

5 FAQ

Q: What is the return policy if I order the wrong size?

A: We accept returns within 30 days for unused items in original packaging. Please contact our support team to initiate a return request for the incorrect size.

Q: Is the 201 grade magnetic?

A: Yes, 201 stainless steel is generally magnetic due to its manganese and nitrogen content, whereas 304 and 316 are typically non-magnetic or weakly magnetic depending on the cold working process.

Q: What is the difference between the 304 and 316 grades?

A: Grade 304 is standard stainless steel suitable for most indoor and general outdoor applications. Grade 316 contains molybdenum, offering superior corrosion resistance, making it ideal for marine environments or exposure to chemicals.

Q: Do these washers come with nuts included?

A: No, this listing is for spring lock washers and flat washers only. Nuts and bolts are sold separately in our hardware section.

Q: Can I use M4 washers on an M4.5 bolt?

A: No, metric washers are sized specifically for their corresponding bolt diameter. An M4 washer will be too loose on an M4.5 bolt and will not function correctly. Please select the matching size.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Loose Aquamarine Beads - Gemstone Bracelet Components Including Amber, Southern Red Agate, Gold Rutilated Quartz, Ice-Grade Devil Blue Donghai Crystal

Loose Aquamarine Beads - Gemstone Bracelet Components Including Amber, Southern Red Agate, Gold Rutilated Quartz, Ice-Grade Devil Blue Donghai Crystal

$6.72

Mia Sketch Blending Stump Set for Highlights and Shadows, Professional Art Supplies Including Paper Blenders, Makeup Sponges, and Cotton Tips for Still Life Drawing

Mia Sketch Blending Stump Set for Highlights and Shadows, Professional Art Supplies Including Paper Blenders, Makeup Sponges, and Cotton Tips for Still Life Drawing

$4.00

Custom Tactical Waterproof and Shockproof Knife Box - EDC Carry Case for Folding Knives, Headphones, Data Cables, and Tools

Custom Tactical Waterproof and Shockproof Knife Box - EDC Carry Case for Folding Knives, Headphones, Data Cables, and Tools

$21.99

Wang Xizhi's Hundred-Rhyme Song of Cursive Script - Taipei Palace Museum Edition Hardcover High-Definition Replica Decorative Art Print

Wang Xizhi's Hundred-Rhyme Song of Cursive Script - Taipei Palace Museum Edition Hardcover High-Definition Replica Decorative Art Print

$32.90

Used Car Tires – Sizes: 205/55, 185/65 R15, 215/225/235, 195 R15/R16/R17/R18/R19

Used Car Tires – Sizes: 205/55, 185/65 R15, 215/225/235, 195 R15/R16/R17/R18/R19

$264.00

Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

$3,299.00

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

$660.00

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

$119.64

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

$21.96

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

$312.70

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

$8.88

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

$3.28

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

$802.30

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

$12,899.00

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

$16.80

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

$54.00

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

$4.80

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

$755.00

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

$17.00

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

$39.20

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

$7,972.00

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

$49.60

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

$658.00

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

$127.00

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

$2.72

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

$7,999.00

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

$72.00

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

$41.00

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

$25.00

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

$136.00