M002 M6x18 Left-Hand Thread Hex Screw for GK9 Portable Bag Closer
Original price was: ₹5.00.₹3.00Current price is: ₹3.00.
Description
M002 M6x18 Left-Hand Reverse Thread Handle & Crank Rod Screw for GK9 Portable Bag Closer
The M002 M6x18 Left-Hand Thread Hex Screw is a precision replacement fastener designed for GK9 portable bag closer machines. Unlike standard bolts, this specialized reverse-threaded (left-hand thread) M6 screw tightens counter-clockwise, helping prevent loosening in high-speed rotating drive assemblies.
This replacement screw secures the A007 Santri Bearing Rod (Connecting Crank Arm) and other handle-side transmission components, maintaining accurate mechanical synchronization for reliable bag stitching. It is suitable for a wide range of GK9 handheld bag closer machines and compatible models from several popular manufacturers.
Important: This is a left-hand (reverse) thread screw. Please verify your existing part number (M002), thread direction, and dimensions before purchasing.
Designed for Critical Drive Assemblies
The M002 screw is engineered to fasten components exposed to continuous rotational forces. Its reverse-thread design helps resist self-loosening during machine operation, making it an essential replacement for worn or damaged original fasteners.
It is primarily used to secure:
- A007 Santri Bearing Rod / Connecting Crank Arm
- Main handle transmission linkage
- Eccentric crank assemblies
- Bearing support mechanisms
- Rotating drive linkage components
Replacing a damaged or stripped screw helps restore proper alignment and dependable machine performance.
Key Features
- Genuine replacement M6×18 left-hand thread hex screw
- Reverse-thread design tightens counter-clockwise
- Helps prevent loosening caused by rotating drive mechanisms
- Supports accurate crank and bearing rod alignment
- Designed for continuous industrial bag stitching applications
- Precision metric threading for proper fit
- Easy replacement during routine machine maintenance
Machine Compatibility
The M002 reverse-thread screw is compatible with handheld portable bag closer machines based on the GK9 mechanical platform, including:
- GK9-2
- GK9-8
- GK9-18
- GK9-18A
- GK9-200
- GK9-350
- GK9-500
- GK9-900 (including cordless battery-powered models)
- GK9-1001
It is also compatible with matching portable bag closer machines from:
- Newlong (equivalent handheld styles)
- Flyingman
- Revo
- Gemsy
- Zoje
- Moonstar
- Other standard China-made handheld bag closer machines
Please verify your existing part number (M002), thread direction, and measurements before purchasing, as this is a specialized left-hand threaded fastener.
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 |
| Matching Newlong-style Portable Bag Closers | Yes |
Packaging Materials Supported
Although the screw does not contact fabric directly, it helps maintain proper drive synchronization required for stitching:
- Woven Polypropylene (PP) Bags
- Jute Bags
- Burlap Sacks
- Canvas Bags
- Mesh Bags
- Multi-wall Paper Bags
- Heavy Packaging Materials
A securely fastened bearing rod contributes to smooth feeding and consistent stitch formation during bag closing operations.
How to Install
- Turn off the machine and disconnect the power supply.
- Access the handle and crank rod assembly.
- Remove the damaged reverse-thread screw.
- Confirm that the replacement uses a left-hand (reverse) thread.
- Install by tightening counter-clockwise.
- Ensure the bearing rod is firmly secured without over-tightening.
- Rotate the mechanism manually before operating the machine.
Frequently Asked Questions
Is this a normal M6 screw?
No. This is a left-hand (reverse-thread) M6×18 screw. It tightens counter-clockwise and should not be replaced with a standard right-hand threaded bolt.
Which part does this screw secure?
It is primarily used to secure the A007 Santri Bearing Rod (Connecting Crank Arm) and related handle-side transmission components.
Will it fit all GK9 portable bag closers?
It fits many machines based on the GK9 platform, including GK9-2, GK9-8, GK9-18, GK9-18A, GK9-200, GK9-350, GK9-500, GK9-900, and GK9-1001. Always verify your existing part before ordering.
Why is the screw reverse-threaded?
The reverse thread helps resist loosening caused by the rotational direction of the drive mechanism, improving long-term reliability.
Can I use a standard right-hand M6 screw instead?
No. Using a standard right-hand screw may damage the threads or fail to secure the assembly properly.
What should I check before ordering?
Confirm:
- Part number M002
- M6×18 size
- Left-hand thread direction
- Machine compatibility
