Skip to main content
Home / Washers / In Stock Galvanized High-Strength Blackened Imperial/Metric Spring Washer, 1/2 Split Lock Washer, 5/8 Anti-Loosening Washer

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material High-Carbon Steel
Finish Blackened with Galvanized Coating
Type Split Lock Spring Washer
Measurement System Imperial and Metric Compatible
Sizes Included 1/2 inch and 5/8 inch
Hardness Rating 45-50 HRC
Tensile Strength High-Strength Grade
Primary Function Anti-Loosening and Vibration Resistance
Packaging Bulk Box (Quantity varies by selection)
Application Automotive, Machinery, and Structural Assembly

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for heavy machinery repair

These washers are exactly what I needed for my tractor restoration. The blackened finish looks great and the galvanized coating gives me confidence they won't rust quickly. The split lock tension is strong.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Excellent anti-loosening performance

I use these on vibrating equipment at my shop. Since switching to these high-strength spring washers, we haven't had a single bolt loosen up. Highly recommended for industrial use.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Professional grade

As a mechanic, I go through a lot of washers. These hold up better than the cheap zinc ones I used to buy. The high-strength rating is no joke.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Great value for the price

You can't beat the price for this quality. The metal feels substantial and the split is clean. I keep a box of these in my garage for all sorts of projects.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, fast shipping

Ordered the 5/8 size for a structural project. They fit perfectly and seem very durable. Only giving 4 stars because the packaging was a bit battered, but the washers inside were fine.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Solid product

Works as described. The imperial sizing is accurate. I wish they offered a smaller quantity pack for home users, but the bulk box is fine if you have storage space.

5 FAQ

Q: What is the maximum temperature these washers can withstand?

A: These high-carbon steel washers can generally withstand temperatures up to 400°F (204°C) without losing their temper or spring properties.

Q: Can I use these with stainless steel bolts?

A: While physically compatible, we recommend using washers of similar material to the bolt to prevent galvanic corrosion. If mixing materials, ensure proper isolation or coating.

Q: Is there a metric equivalent available in this same finish?

A: Yes, we carry a dedicated metric line with the same blackened galvanized finish. Please search our store for 'Metric Split Lock Washers' to find the specific millimeter sizes.

Q: Does this pack contain both 1/2 and 5/8 sizes mixed together?

A: No, please select the specific size variant you need at checkout. The listing covers both sizes, but they are shipped in separate packs based on your selection.

Q: Are these washers suitable for outdoor applications?

A: Yes, the galvanized coating provides corrosion resistance making them suitable for outdoor use, though extreme environments may require additional protective measures.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery

Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery

$1.00

Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack

Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack

$3.80

Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair

Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair

$66.00

Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container

Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container

$159,443.00

Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study

Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study

$16.80

Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition

Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition

$29.90

Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink

Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink

$3.51

Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22

Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22

$357.00

Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

$11.70

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

$231,249.00

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

$11.85

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

$28.00

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

$977.00

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

$1.00

Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes

Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes

$2.50

Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials

Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials

$36.00

Color Proofing Instrument Ink Mixing Tool Sample Making Machine

Color Proofing Instrument Ink Mixing Tool Sample Making Machine

$1,860.00

Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V

Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V

$1,430.00

2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids

2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids

$11.30

Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line

Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line

$113,050.00

Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy

Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy

$49.50

[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting

[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting

$7.48

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal

$41.00

Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector

Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector

$6.50

Linear Bearing

Linear Bearing

$75.47

Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design

Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design

$2.13

Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects

Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects

$2.38

Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning

Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning

$9.28

Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line

Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line

$67,900.00

Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment

Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment

$2,173.00