Japanese-Made Self-Piercing #6 x 3/8 Hex Zip Screws
Japanese-Made Self-Piercing #6 x 3/8 Hex Zip Screws
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Made in Japan | Self-Piercing Fine Point | #6 x 3/8 in | Zinc Plated | 1/4 in Slotted Hex Head
Japanese-Made Self-Piercing #6 x 3/8 Hex Zip Screws
Start cleaner and fasten faster in compatible light sheet metal with Japanese-made #6 x 3/8 in hex zip screws built for gutter end caps, downspout assemblies, trim, flashing, soffit, fascia, HVAC ductwork, and sheet-metal detail work.
Cleaner Starts for the Small Metal Details That Slow Crews Down
Gutter end caps, downspout assemblies, flashing, soffit, fascia, and HVAC sheet metal all depend on small fasteners that start cleanly and drive with control. These Japanese-made hex zip screws use a self-piercing fine point to help installers start into compatible light-gauge metal without adding a separate drilling step when the material allows.
The main buying reason is speed with control: the fine point helps start the hole, the fine thread supports grip in suitable thin metal, the zinc-plated finish supports corrosion-resistance planning, and the 1/4 in slotted hex head works with common compatible drivers.
Why Installers Use These Zip Screws for Gutter and Sheet-Metal Details
Self-Piercing Fine Point
Helps the screw start into compatible light-gauge sheet metal without a separate pre-drilled hole when the application allows.
Made in Japan
Built for crews that want consistent small fasteners for repetitive gutter, roofing, HVAC, and sheet-metal fastening.
1/4 in Slotted Hex Head
Works with compatible 1/4 in hex drivers or slotted bits for controlled installation in tight exterior details.
Zinc-Plated Finish
Supports corrosion-resistance planning for compatible applications where zinc-plated steel fasteners are appropriate.
Made for Gutter End Caps, Downspout Assemblies, Flashing, HVAC Ductwork, and Light Sheet Metal
These #6 x 3/8 in professional hex zip screws feature a self-piercing fine point, zinc-plated finish, high-grade steel construction, fine thread, Made in Japan manufacturing, and a 1/4 in slotted hex head.
They are a strong fit for gutter installers, roofing crews, HVAC contractors, exterior contractors, maintenance teams, and sheet-metal buyers who need compact fasteners for compatible gutter components, downspout assemblies, metal roofing trim, flashing, soffit, fascia, ventilation work, and light-duty metal connections.
For best results, match the screw length, material thickness, driver size, spacing, and fastening application before installation.
| Product | Best For |
|---|---|
| Japanese-Made Self-Piercing #6 x 3/8 Hex Zip Screws | Compatible gutter end caps, downspout assemblies, gutter guards, flashing, trim, soffit, fascia, sheet metal roofing details, HVAC ductwork, ventilation components, and light-duty sheet-metal fastening where a compact self-piercing fine point screw is the right fit. |
Compact Fasteners Matter When the Detail Has to Stay Clean
Short screws are often used where the fastening detail is small, visible, or close to an edge. The #6 x 3/8 in size helps crews work on compatible thin-metal components without using more screw length than the detail requires.
The self-piercing fine point helps create a cleaner start in compatible material, while the 1/4 in slotted hex head gives installers a familiar drive style for controlled placement.
The strongest result comes from confirming screw length, material thickness, driver fit, and fastening pattern before installation.
Best-Fit Applications
| Application | Why It Fits |
|---|---|
| Gutter end caps and components | Compact #6 x 3/8 in length supports compatible detail fastening without excess screw length. |
| Downspout assembly and brackets | Self-piercing fine point helps start in compatible thin metal while the 1/4 in head supports controlled driving. |
| Flashing, fascia, soffit, and trim | Useful for compatible small fastening points on light exterior metal and trim details. |
| HVAC ductwork and ventilation work | Designed for compatible sheet-metal fastening where a compact self-piercing screw is appropriate. |
| Sheet metal roofing details | Zinc plating and fine point design support compatible light metal detail work when matched to the application. |
How It Works
The self-piercing fine point helps start into compatible light-gauge sheet metal. The fine thread helps the fastener engage the material, while the 1/4 in slotted hex head transfers torque from a compatible driver.
The zinc-plated finish supports corrosion-resistance planning, but the correct fastener choice still depends on exposure, material compatibility, and the specific installation environment.
Drive straight, use controlled pressure, and stop when the screw is seated cleanly. Avoid overdriving or damaging the material around the fastener.
Fastener Selection Guide
| Use This Screw When | Choose Another Fastener When |
|---|---|
| The job calls for a compact #6 x 3/8 in sheet-metal fastener. | The project requires a longer fastener, structural screw, heavy-steel fastener, masonry fastener, or engineered fastening requirement. |
| Compatible light-gauge sheet metal can accept a self-piercing fine point screw. | The material is too thick, too hard, too brittle, or requires a pilot hole by project specification. |
| A zinc-plated fastener is suitable for the exposure and material combination. | The environment requires a different coating, stainless grade, sealing washer, or corrosion-control specification. |
Key Features
| Feature | Customer Benefit |
|---|---|
| Made in Japan | Supports consistent quality expectations for repetitive professional fastening work. |
| Self-piercing fine point | Helps start in compatible light-gauge sheet metal without a separate drilling step when the application allows. |
| #6 x 3/8 in size | Compact size for compatible end caps, downspout assemblies, trim, flashing, ductwork, and light metal details. |
| 1/4 in slotted hex head | Works with compatible 1/4 in hex drivers or slotted bits for flexible tool use. |
| Zinc-plated finish | Supports corrosion-resistance planning where zinc-plated steel fasteners fit the application. |
| Fine thread | Supports grip in suitable thin-metal fastening applications. |
Quick Product Summary
Japanese-made #6 x 3/8 in professional hex zip screws with self-piercing fine points, zinc-plated finish, high-grade steel construction, fine thread, and 1/4 in slotted hex heads for compatible gutter end caps, downspout assemblies, flashing, trim, soffit, fascia, HVAC ductwork, sheet metal roofing details, and light-duty sheet-metal fastening.
Key Benefits
- Japanese-made fastener for consistent professional sheet-metal work
- Self-piercing fine point helps start in compatible light-gauge metal
- Helps reduce separate pre-drilling steps when the material allows
- Compact #6 x 3/8 in size supports small detail fastening
- 1/4 in slotted hex head works with compatible common drivers
- Fine thread supports grip in suitable applications
- Zinc-plated finish supports corrosion-resistance planning
- Useful for gutter end caps and components
- Useful for downspout assembly and brackets
- Useful for trim, flashing, soffit, fascia, and roof-edge details
- Useful for HVAC ductwork and ventilation components
- Useful for compatible sheet metal roofing details
- Practical for installers, roofing crews, HVAC contractors, and maintenance buyers
- Works well for service kits and repair work where the size fits
- Available with fit support from GutterAll before ordering
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Japanese-Made Self-Piercing #6 x 3/8 Hex Zip Screws |
| SKU | HZS-6-38-FP |
| MPN | HZS-6-38-FP |
| Product Type | Self-piercing hex zip screw / sheet metal fastener / gutter screw |
| Size | #6 x 3/8 in |
| Metric Size | 3.5 mm x 9.5 mm |
| Head Type | 1/4 in slotted hex head |
| Point Type | Self-piercing fine point |
| Thread | Fine thread |
| Material | High-grade steel |
| Finish | Zinc plated |
| Manufacturing | Made in Japan |
| Common Uses | Gutter systems, HVAC ductwork, roofing panels, sheet metal projects, gutter end caps, downspout assembly, trim, flashing, soffit, fascia, and light-duty metal fastening |
| Driver | Compatible 1/4 in hex driver or slotted bit |
| Use With | Compatible light-gauge sheet metal and exterior detail fastening applications |
| Not For | Structural fastening, masonry, concrete, heavy steel, or applications requiring a different fastener specification |
| Service Life | Varies by installation quality, coating condition, exposure, material compatibility, moisture, maintenance, and local environment. |
| Fulfillment Options | In-store pickup, local delivery, and nationwide shipping |
Who Uses These Screws?
```Gutter Installers and Service Crews
- Fastening compatible end caps, downspout assemblies, gutter guards, flashing, and trim
- Using compact screws for small sheet-metal details where #6 x 3/8 in fits the job
- Keeping Japanese-made self-piercing screws available for service work and repeat repairs
Roofing, HVAC, and Sheet-Metal Contractors
- Working with compatible ductwork, roofing panels, ventilation parts, trim, and sheet metal
- Using self-piercing fine point screws where faster starts are useful
- Matching zinc-plated fasteners to suitable exposure and material conditions
Property Maintenance and Repair Buyers
- Repairing compatible gutter, downspout, trim, flashing, and light metal details
- Choosing a compact screw for small exterior fastening points
- Confirming size, finish, driver, and application before installation
Application Guide
- Confirm the job calls for a #6 x 3/8 in self-piercing hex zip screw.
- Confirm the metal thickness and fastening point are suitable for this screw style.
- Confirm zinc-plated steel is appropriate for the exposure and material combination.
- Use a compatible 1/4 in hex driver or slotted bit.
- Set the driver for controlled installation.
- Align the gutter component, downspout assembly, trim, flashing, ductwork, or sheet-metal part before fastening.
- Apply steady pressure while the self-piercing fine point starts into the compatible material.
- Drive straight so the head seats cleanly against the surface.
- Stop when the fastener is seated; avoid unnecessary material distortion.
- Inspect exterior fasteners during routine maintenance and replace worn or damaged screws as needed.
Pro Tip
Start slower, keep the screw perpendicular, and let the fine point begin the hole before increasing speed. Clean starts matter most on thin metal because one rushed fastener can distort the detail.
Quantity Planning Guide
| Application | Planning Note | Best Practice |
|---|---|---|
| Small repair work | Plan extra for test starts, replacements, and hidden damage. | Confirm size and material fit before fastening the visible area. |
| Gutter end caps and components | Count depends on profile, part design, and fastening pattern. | Follow the component layout and avoid crowding fasteners near edges. |
| HVAC ductwork and light sheet metal | Count depends on seam length, joint design, and material thickness. | Use consistent spacing appropriate for the job requirement. |
| Shop or service truck supply | Keep a dedicated quantity available for repeat service work. | Do not mix different screw lengths or coatings in the same bin. |
Frequently Asked Questions
```What are these #6 x 3/8 in hex zip screws used for?
They are used for compatible gutter end caps, downspout assemblies, gutter guards, flashing, trim, soffit, fascia, sheet metal roofing details, HVAC ductwork, ventilation components, and light-duty sheet-metal fastening.
What makes the self-piercing fine point useful?
The fine point helps the screw start in compatible light-gauge sheet metal without a separate pre-drilled hole when the material and application allow it.
What driver fits these screws?
These screws use a 1/4 in slotted hex head. Use a compatible 1/4 in hex driver or slotted bit with controlled pressure.
Is zinc plating right for every exterior application?
No. Zinc plating can support corrosion-resistance planning, but suitability depends on exposure, moisture, coating condition, material compatibility, and local environment. Use another fastener specification when the job requires it.
What is GutterAll's return policy for this product?
GutterAll offers a 30-day return window for unused standard products in original condition. Opened, installed, damaged, or partial fastener packages may not be returnable unless defective. Customers should confirm screw size, finish, quantity, driver size, and application before ordering. Return shipping is the buyer's responsibility unless the return is due to defect or fulfillment error. Refunds are processed within 5 to 7 business days after approval and receipt.
What fulfillment options are available?
This fastener can be fulfilled with in-store pickup at GutterAll in Damascus, Oregon, local delivery where available, or nationwide shipping. Typical handling is 1 to 2 business days, and transit time is typically 3 to 7 business days depending on destination and carrier.
Installation and Safety Notice
Use proper ladder safety when working near gutters, roof edges, siding, or elevated exterior areas.
Wear eye protection and gloves when installing fasteners. Sharp points, metal shavings, and driver slip can cause injury or damage to the work surface.
These screws are not intended for structural fastening, masonry, concrete, heavy steel, or applications requiring a different fastener specification.
Need Help Matching the Screw to the Job?
The right screw depends on length, metal thickness, finish, driver fit, fastening location, and exposure. Website chat is the fastest way to confirm fit before ordering.
Fastest Path
Start with website chat for screw size, finish, quantity, driver fit, and application questions.
Complete the Install
Pair with the correct hex driver, gutter hardware, downspout parts, sealants, trim components, and related accessories.
Fulfillment Options
In-store pickup, local delivery, and nationwide shipping are available.
Product Summary Box
Japanese-made #6 x 3/8 in self-piercing hex zip screws help crews fasten compatible light sheet metal details with a fine point start, zinc-plated finish, fine thread, high-grade steel construction, and 1/4 in slotted hex head for gutter end caps, downspout assemblies, trim, flashing, soffit, fascia, HVAC ductwork, sheet metal roofing details, and light-duty metal fastening.
Address
GutterAll
19759 SE Sunnyside Rd
Damascus, OR 97089
Hours
Mon-Fri: 7am-4pm PST
Sat: 9am-12pm PST
sales@gutterall.com
Phone
(503) 850-6784
