Description
M008 M5x16 Socket Head Cap Feed Dog Retaining Screw for GK9 Portable Bag Closer
The M008 M5x16 Socket Head Cap Feed Dog Retaining Screw is a precision replacement fastener designed for GK9 portable bag closer machines. This high-strength metric screw securely fixes the A039 Feed Dog (Dati) to the lower feed carrier assembly, helping maintain accurate feeding and reliable stitch formation during continuous bag stitching.
Manufactured with an M5 metric thread and 16mm length, this socket head cap screw provides a firm hold under repeated vibration and heavy-duty operation. It is an ideal replacement for worn, damaged, or missing feed dog mounting screws in compatible GK9 handheld bag closing machines.
Designed for Reliable Feed Dog Mounting
The feed dog is one of the most important moving components in a portable bag closer. It grips the bag material and advances it evenly beneath the needle. The M008 screw firmly secures the feed dog to the feed carrier mechanism, helping prevent unwanted movement during operation.
A properly tightened feed dog retaining screw helps:
- Secure the A039 Feed Dog assembly
- Maintain accurate material feeding
- Reduce feed dog vibration
- Support consistent stitch quality
- Minimize component loosening during prolonged use
- Improve overall machine reliability
Compatible Machines
This replacement screw is compatible with portable industrial bag closer machines built on the GK9 platform, including:
- GK9-2
- GK9-8
- GK9-18
- GK9-18A
- GK9-200
- GK9-350
- GK9-500
- GK9-900 (including cordless battery models)
- GK9-1001
It is also suitable for many compatible handheld bag closer machines manufactured by:
- Newlong-style handheld models
- Flyingman
- Revo
- Gemsy
- Zoje
- Moonstar
- Other standard China-made portable bag stitching machines using the same GK9 mechanical framework.
Please verify part number M008 and compare your existing screw with your machine’s parts diagram before purchasing.
Key Features
- Precision M5 metric thread
- 16mm overall screw length
- Socket head cap design for secure tightening
- Designed for A039 Feed Dog (Dati) mounting
- Helps prevent feed mechanism movement
- Suitable for heavy-duty daily operation
- Easy replacement during routine maintenance
- Ideal OEM-style replacement part
- Sold as 1 piece
Applications
This screw supports reliable feeding while stitching heavy industrial packaging materials, including:
- Woven polypropylene (PP) sacks
- Jute bags
- Burlap bags
- Canvas bags
- Mesh bags
- Multi-wall kraft paper bags
- Agricultural packaging
- Grain sacks
- Fertilizer bags
- Feed bags
Although it does not directly contact the fabric, it plays an important role in keeping the feed dog securely positioned for smooth material movement.
Why Replace a Worn Feed Dog Screw?
Over time, constant vibration can loosen or damage the original screw. Replacing it helps restore secure mounting of the feed mechanism and reduces the risk of uneven feeding or component movement.
Replacing worn hardware during regular maintenance can also help extend the service life of other feed system components.
Machine Compatibility Table
| Machine Type | Compatible |
|---|---|
| GK9-2 | Yes |
| GK9-8 | Yes |
| GK9-18 | Yes |
| GK9-18A | Yes |
| GK9-200 | Yes |
| GK9-350 | Yes |
| GK9-500 | Yes |
| GK9-900 | Yes |
| GK9-1001 | Yes |
| Newlong-style handheld bag closer | Yes |
| Flyingman | Yes |
| Gemsy | Yes |
| Zoje | Yes |
| Moonstar | Yes |
| Revo | Yes |
Packaging Materials Supported
| Material | Suitable |
|---|---|
| Woven PP Bags | ✔ |
| Jute Bags | ✔ |
| Burlap Bags | ✔ |
| Canvas Bags | ✔ |
| Mesh Bags | ✔ |
| Multi-wall Kraft Paper Bags | ✔ |
How to Install
- Switch off the bag closer machine.
- Remove the existing feed dog retaining screw.
- Position the A039 Feed Dog correctly on the feed carrier.
- Insert the M008 M5x16 screw.
- Tighten using the correct hex key.
- Ensure the feed dog moves freely without looseness.
- Test the machine before regular operation.
Frequently Asked Questions
Is this screw compatible with all GK9 portable bag closer machines?
It is compatible with most GK9-series portable bag closer machines listed above. Always verify your machine model and part number M008 before ordering.
What does this screw hold?
The M008 screw secures the A039 Feed Dog (Dati) to the lower feed carrier mechanism, keeping the feeding system firmly in place.
What size is this screw?
It features a precision M5 metric thread with an overall length of 16mm.
Can I use this screw on Newlong-style handheld bag closers?
Yes. It is compatible with many Newlong-style handheld portable bag closer machines that share the same GK9 mechanical design.
Does this screw affect stitch quality?
Yes. A securely mounted feed dog helps maintain smooth material feeding, which contributes to consistent stitch formation.
Is one screw included?
Yes. Each order contains 1 Piece of the M008 M5x16 Socket Head Cap Screw.
