Needles for industrial sewing machines SCHMETZ 1738 | DBx1 D - for leather (10 pcs.)

SCHMETZ DBx1 D also known as 1738 (A) D are industrial sewing machine needles for leather with D (Triangular Point) triangular cutting point. The needle tip has a triangular cross-section that provides a very strong cutting action and a straight, well-defined stitch line. Ideal for hard, dry leather and thicker technical materials. Chrome coating reduces friction and heat, ensuring long service life under heavy use.

🧵 Suitable materials

• Hard, dry leather (including multiple layers)
• Heavy boots, work/utility footwear (e.g., safety boots)
• Upholstery and furniture padding
• Plastic, cardboard, thick chipboard, paper

✨ Where the D needle excels

• Coarse and regular stitches in hard leather and technical materials
• Intersecting seams, where a secure, durable stitch is needed
• Manufacture of heavy and protective footwear
• Sewing furniture and automotive upholstery
• Technical products made of plastics and cardboard

🎯 D (Triangular Point) advantages

• The strongest cutting effect among cutting points – easily cuts into hard material
• Straight stitch with a clearly visible stitch pattern
• Very suitable for applications where mechanical strength and a secure joint are important
• Stable performance even with thicker threads and multiple material layers

🧶 Recommended threads for leather

Choose needle size and thread size according to material thickness and stitch purpose – the thicker and harder the leather, the larger the needle and the coarser the thread.

🔧 Compatibility

Fits industrial straight stitch (lockstitch) machines that use DBX1, 16X231, 287 WH, 1738 (A) series needles.

Needle system equivalents: DBX1 D, 16X231 D, 287 WH D, 1738 (A) D

📐 Technical data

• CANU: 20:05MF1
• Tip type: D – Triangular Point (triangular cutting point)
• Coating: Chrome
• Shank Ø: 1.62 mm
• Overall length: 38.1 mm
• Length to eye: 33.9 mm
• Shank flattening: none (no flattening)
• Blade shape: straight
• Number of grooves: 1
• Stitch type: Lockstitch
• Packaging: 10 needles

ℹ️ Note

The visual appearance of the stitches in the images refers to machines with side-thread insertion. On machines with front-thread insertion, the stitch effect may differ slightly. If a milder, less aggressive stitch is required, consider other cutting points (for example, S or LR).

✅ Why these needles?

• Designed for heavy, hard leather and technical materials
• Provide a strong cutting action and durable stitch
• Compatible with popular DBx1 series industrial lockstitch machines