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.

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Free Crochet Patterns using 6 mm (J-10) Crochet Hooks

These free crochet patterns were all created using various yarn types and brands, but all use the 6 mm (J-10) sized crochet hook.

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,
Crochet Striped Scarf Pattern

Crochet Striped 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,
Crochet Car Seat Blanket Pattern

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,
Crochet Wave Stitch Tutorial and Blanket

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,