The C.S. Osborne No. 504 straight single round point needle is a standard, professional-grade hand-sewing needle designed for precise work across leather, canvas, sailcloth and upholstery. The single round point pushes fibers aside rather than cutting them, which helps preserve fabric strength and creates neat stitch lines. These needles are light gauge, sold 12 per package, and offered in a range of lengths and gauges to match different projects. Note: size is based on the overall length of the needle.
Why choose the No. 504 straight single round point needle:
• Round point action: The rounded tip separates fibers rather than slicing, reducing tearing and fraying on woven fabrics and many leathers. That makes the 504 a solid choice when material integrity matters.
• Straight profile: A straight shaft gives direct control and predictable needle travel for linear stitching, edge work and joining panels where the stitching path is accessible without the need to reach inside curves.
• Light gauge: The thinner shaft of the 504 is easier to push through lightweight to medium materials, leaving smaller holes and a finer finish on visible seams.
• Pack convenience: Sold 12 needles per card so you have spares for production runs and repairs.
Primary applications and benefits:
• Upholstery detail and trim: Re-seaming fabric faces, attaching welting, and hand-finishing edges where a small hole and controlled stitch are required. The round point helps preserve woven fabric faces.
• Leather patching and thin leatherwork: Best for thin to medium leathers where you want small stitch holes and reduced tearing around the seam. Use the 504 for wallets, light saddlery repairs, and small leather goods.
• Canvas and sail repairs: For light canvas and sailcloth work the 504 penetrates without unnecessarily enlarging holes, which helps gaskets, patches and seams hold tension longer.
• Bookbinding and crafts: Straight needles are useful for long running stitches, signatures and craft assemblies that benefit from a direct straight-line path.
• Millinery and trims: Sewing through layered trims and appliques where precision and small holes are important.
How to select the right size and gauge:
• Use the overall length measurement when choosing. Overall length determines reach and handling more reliably than eye-to-point distance.
• Shorter needles offer more control for edge work and tight seams. Longer needles are better for deeper layers and continuous stitching through stacks.
• Light gauge 504 needles suit delicate to medium materials. If a needle bends or the thread drags, move up to a heavier gauge or a different point type designed for tougher materials.
Best practices and care:
• Use an appropriate thimble or thumb protector to push the needle while maintaining a straight motion. Avoid bending the wrist to reduce needle stress.
• Pair with compatible thread. For leather and marine canvas select waxed or heavy-duty thread. For upholstery and fabric work use strong upholstery thread to reduce abrasion.
• Store needles in a dry, labeled case to keep points sharp and rust-free. Replace any needle that becomes bent or blunt to avoid damaging your work.
• Test on scrap material before working on a finished piece to confirm hole size, thread compatibility and needle performance.
Related products:
• Explore curved and specialty needles: https://alanrichardtextiles.com/collections/needles
• Complementary supplies such as upholstery thread, thimbles, and leather tools: https://alanrichardtextiles.com/collections/leather-tools
Frequently Asked Questions (FAQs):
1. What materials are the C.S. Osborne No. 504 straight single round point needles best for?
The 504 light gauge straight round point needle is ideal for thin to medium leather, woven upholstery fabrics, light canvas and sailcloth. The round tip parts fibers instead of cutting, so it is preferred where preserving material strength and appearance is important.
2. How is the size for No. 504 needles measured and why does that matter?
Size is based on the overall length of the needle. Overall length affects reach and handling, so choose by that measurement to ensure the needle will clear the thickness and geometry of your work. Eye-to-point distance is not a reliable comparison across different needle families.
3. When should I choose a straight round point 504 over a cutting or 3 square point?
Choose the straight round point 504 when you want minimal cutting of fibers, smaller holes and direct, linear stitching. Use cutting points like 3 square or leather point needles for thick hides and reinforced canvas where you need a clean slit for thread seating and reduced push resistance.
