Introduction
Arrow 506 Heavy Duty T50 3/8-Inch Staples are engineered for exceptional holding power across a wide range of heavy-duty stapling applications. These staples are manufactured to precise specifications using state-of-the-art equipment, ensuring reliability and consistent performance.
They are ideal for tasks such as installing insulation, house wraps, roofing underlayment, upholstering furniture, and various craft projects. The heavy-duty steel construction provides durable, long-term holding, and their precision points drive deep into base materials for a firm, lasting hold.
Product Overview and Dimensions

Figure 1: Arrow T50 3/8-inch staples, 1250-pack.
The Arrow 506 T50 Heavy Duty Staples feature a 3/8-inch leg length and a 3/8-inch crown width. This specific size, also known as 10mm, is designed for a variety of applications requiring strong, reliable fastening.

Figure 2: Detailed view of staple dimensions, highlighting 3/8-inch leg length and 3/8-inch crown width. These divergent-point staples are suitable for wood and other hard materials, ideal for upholstery, home repair, and craft projects.
Compatibility
Arrow T50 staples are widely compatible with various stapling tools. They are specifically designed for use with Arrow staple guns, pneumatic tools, and hammer tackers. Compatible models include, but are not limited to:
- T50 Staple Gun
- T50X
- T50HS
- 5700 Powershot Staple Gun and Nailer
- T50RED2
- T50PBN
- T501
- HT50 Professional Hammer Tacker
- HT55
- HTX50
- HT55BL
- HT50MG
- T50ACD
- T50DCD
- T50AC
- ET501C
- ET501F
- PT50 Pneumatic Staple Gun
These staples also fit other brands such as Powershot, Craftsman, Ace, Master Mechanic, and Stanley.

Figure 3: Examples of Arrow tools compatible with T50 staples, including manual, pneumatic, and electric models.

Figure 4: T50 Staples are compatible with a variety of Arrow Tools including manual, electric, and pneumatic staple guns, as well as hammer tackers and combination staple/nail guns.

Figure 5: T50 Staples fit a wide range of tools, including various staple guns (T50, T50X, T50DCD), hammer tackers (HT50, HTX50, HT50MG), and combo guns (ET501C, T50RED2, T50ACN).
Setup and Loading
To ensure proper function and safety, always refer to the specific loading instructions for your stapling tool. Generally, staples are loaded into the magazine of the stapler with the crown (flat top) facing upwards and the legs pointing towards the firing mechanism.
Ensure the staples are the correct size for your tool and application. Using staples that are too long or too short can lead to improper fastening or tool malfunction.

Figure 6: Guide for selecting the appropriate T50 staple leg length based on the material being fastened. The 3/8-inch (10mm) #506 staple is highlighted as a best-selling all-purpose size, suitable for plastics, house wrap, window screens, and roofing paper.
Operating Instructions
Once your stapling tool is loaded with Arrow T50 staples, position the tool firmly against the material you wish to fasten. Apply even pressure and activate the stapling mechanism according to your tool's instructions. The precision points of the staples are designed to drive deep into various materials, including wood, fabric, and carpet, ensuring a secure and lasting hold.

Figure 7: Arrow T50 staples provide a lasting hold for a variety of materials and applications, including crafts, construction, and upholstery.
For optimal results, ensure the staple's leg length is appropriate for the thickness and density of the materials being joined. A staple that is too long may not seat properly, while one that is too short may not provide adequate holding power.

Figure 8: Pro Tip: If a staple stands away from the surface, it is too long. Choose the next shorter leg length. It is recommended to buy the size you think you need, plus the next shorter size, to ensure proper fit.

Figure 9: Visual guide on staple length. If the staple stands away from the surface, it is too long. The ideal staple length ensures at least 3/16" of the staple is embedded in the base material.
Maintenance
Store staples in a dry environment to prevent rust and corrosion, which can affect their performance and the longevity of your stapling tool. Keep them in their original packaging until ready for use to maintain their integrity.
Troubleshooting
- Staples not driving fully: This can be caused by using staples that are too long for the material, insufficient pressure on the stapler, or a worn stapler mechanism. Try a shorter staple length (refer to Figure 8 and 9) or ensure firm pressure is applied.
- Staples jamming: Jams often occur due to incorrect staple size for the tool, damaged staples, or a dirty/malfunctioning stapler. Ensure staples are straight and undamaged before loading.
- Staples popping out: If staples do not hold securely, they may be too short for the material, or the material itself may be too soft or brittle. Consider a longer staple length or a different fastening method if the material is unsuitable.
For persistent issues, consult your stapling tool's instruction manual or contact Arrow Fastener customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Arrow Fastener |
| Model Number | 506 |
| Staple Type | T50 Heavy Duty Staples |
| Leg Length | 3/8 inch (10mm) |
| Crown Width | 3/8 inch |
| Quantity per Pack | 1250 |
| Material | Steel |
| Product Dimensions | 0.5 x 4.15 x 3.55 inches (Package); 0.37"L x 0.37"W (Staple) |
| Item Weight | 0.16 Kilograms (5.64 ounces) |
| Date First Available | July 26, 2017 |
Warranty and Support
For information regarding product warranty or technical support, please visit the official Arrow Fastener website or contact their customer service department directly. You can also visit the Arrow Fastener Store on Amazon for more products and information.
Important Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.





