Description
Reviews
| Brand | - |
| Category | Hardware & Tools / Sewing & Embroidery Machines |
| Origin | - |
| Brand | JACK |
| Model Compatibility | Universal for Computerized Flatbed Series |
| Material | High-Grade Aluminum Alloy |
| Bobbin Type | Class 15 Style (Low Shoulder) |
| Color | Silver |
| Package Quantity | 10 Pieces per Pack |
| Weight | 45 grams (total pack) |
| Precision Rating | CNC Machined for Balanced Rotation |
| Recommended Use | Industrial and Heavy-Duty Sewing |
| Warranty | 90-Day Manufacturer Defect Coverage |
Anonymous
Mar 31, 2026
Rating: 5/5
No more skipped stitches
I was having intermittent tension issues with aftermarket bobbins. Switching back to these original JACK bobbins solved the problem immediately. Consistent performance every time.
Anonymous
Mar 21, 2026
Rating: 5/5
Smooth operation
Very happy with this purchase. The aluminum finish is smooth, preventing thread drag, and they load easily into the drop-in case. Will buy again.
Anonymous
Mar 16, 2026
Rating: 5/5
Quality you can trust
I run a small alteration shop and go through bobbins quickly. These original JACK bobbins are perfectly balanced and don't cause the noise that generic ones do. Highly recommended.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect fit for my JACK A4
These bobbins work flawlessly with my JACK A4 computerized machine. The stitching is smooth, and I haven't experienced any thread bunching since switching to these original parts.
Anonymous
Mar 15, 2026
Rating: 5/5
Essential for industrial machines
If you own a JACK flatbed, do not risk using cheap alternatives. These are precision-made and ensure your machine runs at optimal speed without vibration.
Anonymous
Mar 02, 2026
Rating: 4/5
Good value pack
The quality is excellent and they fit my F4 machine perfectly. I gave 4 stars only because shipping took a bit longer than expected, but the product itself is top-notch.
Q: Do these come pre-wound with thread?
A: No, these bobbins are sold empty. You will need to wind your own thread onto them using your machine's winder or a separate bobbin winder.
Q: How many bobbins are included in one order?
A: Each package contains exactly 10 pieces of original JACK universal bobbins.
Q: Will these bobbins work with the JACK F5 model?
A: Yes, these universal bobbins are designed to be compatible with all JACK computerized flatbed series, including the F4, F5, and A4 models.
Q: Are these bobbins suitable for heavy denim fabric?
A: Absolutely. These bobbins are made from high-grade aluminum alloy specifically to handle the high speeds and tension required for heavy-duty fabrics like denim and canvas.
Q: Can I use these in a domestic home sewing machine?
A: These are designed specifically for JACK industrial computerized flatbed machines. While they are Class 15 style, we recommend checking your home machine's manual as industrial bobbins may have slightly different tolerances.
Natural Green Peridot Crushed Stone, Small Raw Particles for Demagnetizing Energy, Aquarium Landscaping DIY Accessories
$8.50
3M 5-Inch Flocked Abrasive Disc with Hook-and-Loop Backing – Polishing Pad for Angle Grinders, Rust Removal & Cleaning
$3.20
Children DIY Art Rubbing Stick Round Painting Sponge Brush Graffiti Stamp Tool Kindergarten Rubbing Materials
$2.61
Over-Toilet Storage Rack for Bathroom - Organizer for Tissue, Toiletries, and Body Wash
$23.46
Magbase Cable Organizer with Dual Strong Magnets for Car, Office, and Home - Holds Power Cables, Ethernet, and Charging Cables
$24.90
Multi-Purpose Industrial Wiping Cloth 30*35 - Lint-Free Oil-Absorbent Paper for Aviation, Metro, and Rail Systems
$98.00
Commercial Electric Dicing Machine - Multi-Function Slicer for Carrots and Potatoes
$852.00
![[Single Pack] Handwoven Bird Nest Drop Net Cotton Rope Crochet Fruit Mesh Bag Storage Organizer](https://www.gosteppe.com/cache/small/product/269122/legacy-main-636b79526345e5fcd94b7ff1.webp)
[Single Pack] Handwoven Bird Nest Drop Net Cotton Rope Crochet Fruit Mesh Bag Storage Organizer
$10.36
Car Tire Lug Nuts - External Hex Cone Seat Wheel Bolts for Custom Rims
$80.00
Infant Sheepskin Rattle Baby Toy for Courage Building, Solid Wood Unpainted Chewable Glue-Free Version for Audio-Visual Grasping Early Education
$18.25
New Transparent Heat-Preserving Display Case for Roast Duck - Commercial Crispy Pork Belly Warmer with Eco-Friendly Design
$636.00
Electric Watercolor Spray Pen Children Hand-painted Color Pa
$46.55
Meiyike Water-Soluble Fertilizer with Major Elements – Hua Duo Duo No.1, No.2, No.10 Formulas, High Nitrogen, Phosphorus, Potassium Specialized Compound Fertilizer
$49.34
Waterproof Swim Bag, Wet Clothes Storage Tote with Handle, Large-Capacity Outdoor Hot Spring Pouch Dedicated for Mobile Phones
$59.96
Magic Expandable Bag, Foldable Shopping Tote, Portable Large-Capacity Storage for Grocery, Travel, and Mall Trips
$6.80
Dancolin Blending Stump Set for Oil Pastels, Art Student Tools for Heavy-Color Oil Painting, Dual-Tip Pointed and Round DIY Soft Wax Drawing, Smudging, Mixing, Highlighting, Erasable Knife for Painting and Color Blending
$16.80
Shanlian Hubei Brush Small Perfect Brush Washer - Ceramic Ink Dish, Calligraphy Cleaning Tool, Moisturizing Water Pot, Art Supply Decor
$14.20
Yanyu Mineral Water Fish Tank Stand - Triangular Bracket for Inverted Bottle Self-Made Water Circulation System
$17.05
Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er
$450.60
Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts
$0.27
Metal Wick Centering Tool with Wooden Base for DIY Scented Candle Making
$1.28
Custom Temporary Bank Account Opening Sign, Company Signboard, Stainless Steel Door Plate, PVC Simple Plaque, Acrylic Advertising Board
$15.20
Natural Raw Crystal Diffuser Stones 500g - Same Style as Certain Summer Brand, Flameless Indoor Decor (White, Green, Purple, Yellow, Black, Blue)
$10.20
Iron Chain, Flower Pot Hanging Chain with Iron Rings, Black Suspension Chain for Bird Cages and Garden Planters
$0.10
Sheepskin Rattle with Brass Bells - Handmade Wooden Peach Wood Baby Toy for Chewing, Perfect for Children's Day
$10.80
Commercial Square Insulated Warmer Cabinet with Constant Temperature Heating, Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ Meat
$338.00
PISEN Desktop Cable Organizer - Magnetic Data Cord Manager, Soft Silicone Fixed Wire Winder with Adhesive Clips, Mini Portable Hub
$10.10
Handcrafted Peach Wood and Sheepskin Rattle with Brass Jingle Stick – Traditional Chewable Wooden Baby Toy
$74.00
DC Drive DCS550-S02-0050-05-00-00
$10,838.20
Waterproof Storage Bag for Clothes and Bathroom Use, Large-Capacity Drawstring Organizer for Men and Women, Outdoor Travel and Toiletry Pack
$39.90
