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.

  • 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,