Introduction
This manual provides essential information for the safe and effective use of Bostitch SX50357/8G 7/8 inch 18 Gauge 7/32 inch Narrow Crown Finish Staples. These staples are designed for various finishing applications, offering reliable fastening with a galvanized finish and chisel points for optimal penetration and holding power. Please read this manual thoroughly before use to ensure proper application and longevity of your fasteners.
Safety Information
Always prioritize safety when working with fastening tools and materials. Adhere to the following guidelines:
- Always wear appropriate personal protective equipment (PPE), including safety glasses, to protect against flying debris.
- Ensure your stapler is disconnected from its power source (air compressor, battery, or electrical outlet) before loading, unloading, or performing any maintenance.
- Never point a stapler at yourself or others.
- Use only staples that are compatible with your specific stapler model to prevent jams and tool damage.
- Keep staples out of reach of children and pets.
- Store staples in a dry environment to prevent corrosion.
Product Overview
The Bostitch SX50357/8G staples are 7/8 inch long, 18 gauge, with a 7/32 inch narrow crown. They feature a galvanized finish for enhanced durability and corrosion resistance, along with chisel points designed for clean penetration and strong holding power in various materials.

Compatibility
These Bostitch SX50357/8G staples are compatible with a range of Bostitch staplers and other tools designed for 18 gauge, 7/32 inch narrow crown staples. Compatible Bostitch tools include:
- Bostitch S32SX
- Bostitch S32SX-BHF-2
- Bostitch T40SX-CT
- Bostitch SB-150SX
- Bostitch SB-2IN1
- Bostitch SB150SX-HD
- Bostitch SX150K-1
Always refer to your stapler's instruction manual to confirm staple compatibility before loading.
Setup and Loading Instructions
Proper loading of staples is crucial for efficient operation and to prevent tool jams. Follow these general steps:
- Disconnect Power: Ensure your stapler is disconnected from its power source (e.g., air hose, battery pack, power cord) before attempting to load staples.
- Open Magazine: Locate and open the stapler's magazine. This usually involves pressing a latch or sliding a cover.
- Insert Staples: Place a strip of Bostitch SX50357/8G staples into the magazine with the points facing forward and the crown (flat top) facing up. Ensure the staples fit snugly within the magazine channel. Do not force them.
- Close Magazine: Slide the magazine cover or latch back into place until it securely locks.
- Reconnect Power: Reconnect the stapler to its power source.
- Test Fire: Perform a test fire on a scrap piece of material to ensure proper staple feeding and depth adjustment.
For detailed, tool-specific loading instructions, consult the manual provided with your Bostitch stapler.
Operating Instructions
Once the staples are loaded and the stapler is connected to its power source, you can begin operation. Always refer to your specific stapler's operating manual for detailed instructions, as procedures may vary slightly between models.
- Prepare Workpiece: Ensure the material you are fastening is clean, dry, and properly secured.
- Adjust Depth (if applicable): If your stapler has a depth adjustment feature, set it according to the material thickness and desired staple depth.
- Position Stapler: Place the nose of the stapler firmly against the workpiece at the desired fastening location.
- Actuate Trigger: Engage the trigger mechanism to drive the staple. Some staplers require pressing the nose against the material before pulling the trigger (contact trip), while others fire upon trigger pull (sequential trip).
- Inspect Fastening: After each staple, inspect the fastening to ensure it is properly seated and holding the material securely.
Maintenance and Storage
Proper maintenance and storage of your Bostitch staples will ensure their quality and performance.
- Storage: Store staples in their original packaging in a cool, dry place. Avoid environments with high humidity or extreme temperature fluctuations, which can lead to corrosion.
- Handling: Handle staple strips carefully to prevent them from breaking apart, which can cause feeding issues in the stapler.
- Inspection: Before loading, quickly inspect staple strips for any signs of damage, rust, or deformation. Do not use damaged staples.
Troubleshooting
If you encounter issues while using Bostitch SX50357/8G staples, consider the following common troubleshooting steps:
- Stapler Jams: If the stapler jams, first disconnect the power source. Carefully open the magazine and clear any broken or bent staples. Ensure the staples are correctly loaded and are the correct size for your tool.
- Staples Not Driving Fully: This can be due to incorrect depth adjustment on the stapler, insufficient air pressure (for pneumatic tools), or using staples that are too long for the material. Adjust settings or use shorter staples if necessary.
- Staples Bending/Deforming: This often indicates that the material is too hard for the staple, or the stapler's nose is not firmly pressed against the workpiece. Ensure proper technique and material compatibility.
- Staples Breaking Apart: If staple strips break easily, they may have been mishandled or stored improperly. Use new, intact strips.
For persistent issues, consult your stapler's specific troubleshooting guide or contact Bostitch customer support.
Specifications
| Feature | Specification |
|---|---|
| Model Number | SX50357/8G |
| Staple Length | 7/8 inches (22mm) |
| Gauge | 18 Gauge |
| Crown Size | 7/32 inches (6mm) Narrow Crown |
| Finish | Galvanized |
| Point Type | Chisel Point |
| Quantity per Box | 5,000 staples |
| Item Weight | 8 ounces |
| Product Dimensions | 5.25 x 8.3 x 1.5 inches (packaging) |
Warranty Information
Bostitch fasteners are manufactured to high-quality standards. While staples themselves typically do not carry a separate warranty, their performance is guaranteed when used correctly with compatible Bostitch tools. For specific warranty details regarding Bostitch tools or if you believe there is a defect in the product, please refer to the warranty information provided with your Bostitch stapler or contact Bostitch customer support directly.
Customer Support
For further assistance, technical support, or inquiries regarding Bostitch products, please visit the official Bostitch website or contact their customer service department. Contact information can typically be found on the product packaging or the Bostitch official website.



