C.S. Osborne · Curved upholstery needles
C.S. Osborne No. 501 Heavy Curved Needles, 3-Inch, 12 Pack

When to choose it
Choose this three-inch No. 501 when you want a heavy 16-gauge round point for an upholstery seam you will work from the accessible face. Osborne measures the overall width of the curved tool. Use that measurement to judge whether the arc can turn beside the seam.
The 501X range gives you extra-light round points if you need a finer tool for the seam. If you need to carry thread through the whole cushion to the far side, compare the long straight or tufting tools instead and measure the path through the padding.
Specifications
- Brand
- C.S. Osborne
- Construction
- Curved round point
- Work task
- Upholstery seams
- Model
- 501-3
- Point
- Round
- Profile
- Curved
- Size
- 3 in across overall
- Gauge
- 16
- Pack
- 12 needles
- Amazon.com reference
- B07H5XM2B9
Fit and buying advice
Check the turning clearance and the point and eye your fabric and thread require.
Related choice C.S. Osborne No. 501X Extra-Light Curved Needles, 2-Inch, 12 Pack ↗
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Documentation
Questions about this product
How do I read the three-inch size?
Osborne measures across the curved needle. Use that as a measure of the space the arc occupies.
Can I use the same size and choose a finer needle?
Compare the maker’s No. 501X series and verify the gauge for the size you select.
What should I choose to sew from one side through to the other?
Measure the full path and compare long straight or tufting needles, depending on how the thread will be anchored.


