Crochet Hook 6 mm (J-10)

This is the Easy Crochet archive for free crochet patterns using the J/10 hook size. The J-10 hook size is also known as the 6 mm metric and UK 4 hook. We recommend using the J hook with Medium weight yarn (Worsted, Afghan or Aran).

The J-10 / 6 mm / UK4 hook is the perfect size for making everything from baby blankets to scarves to ear warmers.

Granny Ripple Blanket Crochet Pattern

Granny Ripple Blanket Crochet Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Blue, Gray, White,
Primrose Crochet Stitch Tutorial

Primrose Crochet Stitch Tutorial

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Hobby Lobby,
  • Yarn Name: I Love This Yarn,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet,
  • Color: Pink,
Crochet Flower Pattern Blooming Spring Flower

Crochet Flower Pattern Blooming Spring Flower

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand, Red Heart,
  • Yarn Name: Baby Soft, Red Heart Soft,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Bobble, Single Crochet,
  • Color: Blue,
Wavy Crochet Blanket Pattern

Wavy Crochet Blanket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand, Red Heart,
  • Yarn Name: Red Heart Soft, Vanna’s Choice,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
Free Crochet Newborn Hat Pattern

Free Crochet Newborn Hat Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Bobble, Double Crochet,
  • Color: Pink,
Crochet Pattern Wavy Ways Blanket

Crochet Pattern Wavy Ways Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Bernat,
  • Yarn Name: Satin,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Gray, Red, Yellow,
Knit Like Crochet Blanket Pattern Tutorial

Knit Like Crochet Blanket Pattern Tutorial

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hobby Lobby,
  • Yarn Name: I Love This Yarn,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
  • Color: Blue,
Easy Crochet Beanie Pattern

Easy Crochet Beanie Pattern

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Green, Neutral,
Crochet Square Motif Pattern

Crochet Square Motif Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand, Red Heart,
  • Yarn Name: Red Heart Soft, Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Yellow,
Wonders Chevron Crochet Blanket Pattern

Wonders Chevron Crochet Blanket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand, Loops and Threads,
  • Yarn Name: Impeccable, Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Yellow,
Crochet Mitered Square Pattern

Crochet Mitered Square Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Neutral, Pink,
Simple Puff Stitch Crochet Hat Pattern

Simple Puff Stitch Crochet Hat Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Red Heart,
  • Yarn Name: Chic Sheep,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Puff, Single Crochet,
  • Color: Gray,
Crochet Puff Stitch Scarf

Crochet Puff Stitch Scarf

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Neutral,
Cozy and Quick Double Crochet Beanie Pattern

Cozy and Quick Double Crochet Beanie Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Woolspun,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Blue, Yellow,
Crochet Pizza Slice Pattern

Crochet Pizza Slice Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
Easy Crochet Blanket Stitch Baby Blanket

Easy Crochet Blanket Stitch Baby Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Baby Soft,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Pink,
Coffee Cup or Mug Cozy Crochet Pattern

Coffee Cup or Mug Cozy Crochet Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Woolspun,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
Mix it Up Crochet Scarf Pattern

Mix it Up Crochet Scarf Pattern

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Woolspun,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
Colorful Chevron Blanket Pattern

Colorful Chevron Blanket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Green, Yellow,
Crochet Gift Basket Pattern

Crochet Gift Basket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Red,
Simple Striped Scarf Crochet Pattern

Simple Striped Scarf Crochet Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Caron Yarn,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
  • Color: Gray,
Crochet Ripple Blanket Progress

Crochet Ripple Blanket Progress

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Red Heart,
  • Yarn Name: Red Heart Soft,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
Simple Crochet Button Hat

Simple Crochet Button Hat

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Neutral,
Free Christmas Washcloth Crochet Pattern

Free Christmas Washcloth Crochet Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet,
  • Color: Green, Neutral, Red,
Crochet Slouchy Pom Pom Hat

Crochet Slouchy Pom Pom Hat

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Color: Neutral,
Easy Crochet Striped Infinity Scarf Pattern

Easy Crochet Striped Infinity Scarf Pattern

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Lion Brand, Red Heart,
  • Yarn Name: Heartland, Red Heart Soft,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet,
  • Color: Blue, Brown, White, Yellow,
Bear Crochet Hat Pattern

Bear Crochet Hat Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Heartland,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Black,
Andi Crochet Infinity Scarf Pattern

Andi Crochet Infinity Scarf Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Woolspun,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Gray,
Mint Green Fall Crochet Cowl Pattern

Mint Green Fall Crochet Cowl Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet,
  • Color: Green,
Modern Ripple Crochet Car Seat Blanket Pattern

Modern Ripple Crochet Car Seat Blanket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Loops and Threads,
  • Yarn Name: Impeccable,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Green, Neutral, Yellow,
Crochet Button Heart Headband

Crochet Button Heart Headband

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Brown,
Free Chevron Crochet Blanket Pattern

Free Chevron Crochet Blanket Pattern

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Neutral,
Crochet Mini Bag Pattern

Crochet Mini Bag Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Red Heart,
  • Yarn Name: Red Heart Soft,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Blue,
Woodland Crochet Baby Blanket

Woodland Crochet Baby Blanket

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Loops and Threads,
  • Yarn Name: Impeccable,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet,
  • Color: Brown, Gray, Green, Orange,
Crochet Beverage Cozy Pattern

Crochet Beverage Cozy Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Slip Stitch,
  • Color: Blue, Yellow,
Easy Crochet Wave Stitch Tutorial and Blanket

Easy Crochet Wave Stitch Tutorial and Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Vanna’s Choice,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Gray, Pink, Purple,
Double Crochet Cluster Blanket

Double Crochet Cluster Blanket

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Red Heart,
  • Yarn Name: Red Heart Soft,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet,
  • Color: Blue, Orange,