About The Product
- Quick and easy to install star-fangled nuts used with 1” and 1-1/8” threadless headset systems.
- Using a durable steel driver and built-in guide
- Aligns the star-fangled nut and sets it to the proper depth every time
- Unique design virtually eliminates pinched fingers
Upgrade your bicycle maintenance toolkit with the Park Tool TNS-4 Threadless Nut Setter - the ultimate solution for precise, efficient installation of star nuts in threadless steer tubes. Designed specifically for 1" and 1-1/8" steer tubes, this professional-grade tool ensures accurate alignment and consistent depth, simplifying the process of installing star fangled nuts for threadless headset systems.
Materials & Construction
Constructed from durable, high-quality materials, the TNS-4 features a robust black finish that withstands frequent use in busy bike shops or home workshops. Its ergonomic design provides reliable performance and longevity, making it an essential part of any cyclist or mechanic's toolkit.
Performance & Engineering
Equipped with a built-in slide-hammer guide, this star nut setter guarantees proper positioning every time. Its innovative engineering ensures star nuts are installed to the exact recommended depth of 15mm, preventing installation errors that can compromise headset performance. The tool's design minimizes effort and maximizes accuracy, reducing installation time and increasing workflow efficiency.
Components & Technology
The TNS-4 employs a replaceable set screw (#822), allowing for easy maintenance and prolonged tool life. The star fangled nut threads directly onto the tool, and its integrated guide facilitates precise tapping into the steer tube with a hammer-ideal for professional shop environments and enthusiastic DIY cyclists alike.
Style & Use Case
Compact and lightweight, the TNS-4 is perfect for bike shops, professional mechanics, and dedicated cyclists looking for a reliable, easy-to-use solution for star nut installation. Its sleek black finish and ergonomic design make it a functional and professional addition to your cycling tools.
Innovative & Differentiating Features
- Built-in slide-hammer guide for quick and accurate star nut placement
- Guides and sets correct depth consistently for optimal headset performance
- Compatible with 1" and 1-1/8" steer tubes, covering most bike frame sizes
- Replaceable set screw for long-term durability
- Ensures perfect star nut alignment every time, reducing installation errors
Whether you're upgrading your bike shop's toolkit or performing maintenance at home, the Park Tool TNS-4 Threadless Nut Setter offers unmatched precision, durability, and ease of use. Improve your bike assembly and repair process - choose the TNS-4 for professional-grade star nut installation.
Keywords: star nut setter, threadless headset installation, bike maintenance tools, bicycle repair, star fangled nut installer, bike shop tools, bike repair kit, professional bike tools, TNS-4, park tool star nut installer
- Efficiently installs 1" and 1-1/8" star fangled nuts with precision using the built-in slide-hammer guide, ensuring proper alignment and depth every time.
- Constructed with durable, high-quality materials and a replaceable set screw, the TNS-4 offers long-lasting performance and easy maintenance for professional bike shop use.
- Designed specifically for threadless headset systems, this star nut setter simplifies installation in threadless steer tubes, reducing installation time and improving consistency.
- Features innovative guiding technology that aligns and seats star nuts at the optimal 15mm depth, preventing damage to steer tubes and ensuring reliable headset assembly.
- Stylish black finish and ergonomic design make the TNS-4 a versatile, essential tool for bike technicians focused on accurate, quick, and repeatable star nut installation.
| Specification | Value |
|---|---|
| Manufacturer | PARK TOOL |
| Manufacturer Part No. | TNS-4 |
| Universal Product Code | 763477008039 |
| Invoice Description | TOOL HEAD THRDLS NUT SETTER PARK TNS-4 |
| Shipping Weight | 1.48 lbs. |
| Package Dimensions | 5.85 x 2.05 x 2.25 |
| Country of Origin | UNITED STATES |
| Tool Type | Starnut setter |
| Model | TNS-4 |
- Supplier:
- JBI
Bike Junkies offers no‑hassle returns and exchanges within 60 days of delivery. We want every customer to feel confident when shopping with us, and our return process is designed to be simple, fair, and fast.
Return Eligibility
To qualify for a return or exchange, the following conditions must be met:
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The item must be in new, unused, and uninstalled condition.
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All original packaging, tags, hardware, and accessories must be included and intact.
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Items showing wear, installation marks, damage, or improper use cannot be accepted.
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An order number is required.
Once your return is received at our warehouse, a refund will be issued within 5 days after inspection.
Refunds
Refunds are issued to the original form of payment once the returned item has been received and approved. If we are unable to refund to the original payment method, the refund will be issued as store credit.
Depending on your bank or credit card provider, it may take an additional 2–3 business days for the refund to appear in your account.
Exchanges
To make an exchange, simply complete the return process and then place a new order for the item you want instead. This ensures the replacement item is reserved and ships quickly.
How to Start a Return
To request a Return Authorization (RA#), contact us at support@bikejunkies.com. Please include your order number and the item you wish to return.
Once approved:
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You will receive a Return Authorization email with instructions.
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Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
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Ship the item back within 7 days of the RA being issued as RA #'s are only valid for 7 days.
Please do not tape anything to the original product packaging. Place the item inside a proper shipping box. Using the manufacturer’s box as the shipping container will result in damage and the return may be rejected.
Be sure to keep your return tracking number. Powersport Junkies is not responsible for lost return shipments. You will receive a confirmation email once your return has been processed and refunded.
Defective, Incorrect, or Damaged Items
If you receive a defective, damaged, or incorrectly shipped item, contact us immediately. We will cover the return shipping cost and ensure the issue is resolved quickly.
Non‑Returnable Items
Certain items cannot be returned, including:
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Electronics with opened packaging or broken manufacturer seals
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Any part that has been installed or shows installation attempts
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Tools or chemicals that have been opened or unsealed
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Open‑box items with destroyed or missing packaging
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
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Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
This Shipping Policy explains how orders are processed, handled, and delivered by Bike Junkies, including delivery timelines, shipping coverage, and special conditions for military addresses. It is designed to give customers a clear understanding of what to expect when placing an order.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Order Processing and Handling
Orders are processed quickly to ensure fast delivery. Our standard handling time is 0–1 business days. Order cutoff time is 12 PM PST Monday-Friday and orders placed after that will be shipped shipped next business day.
Transit Times
Once shipped, orders typically arrive within 2–3 business days. Transit times may vary slightly depending on the destination, weather conditions, or carrier-related delays. Delivery estimates apply only after the order has left our facility.
Delivery Schedule
Standard delivery occurs Monday through Friday. Saturday delivery may be available.
Shipping Coverage
Bike Junkies offers free shipping to the lower 48 states of the United States. We do not ship to the following locations:
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Alaska
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Hawaii
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Puerto Rico
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Any international destination outside the United States
Orders placed with shipping addresses in restricted locations will be canceled and refunded.
Military Shipping (APO/FPO)
Bike Junkies ships to APO/FPO military addresses using USPS only.
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We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
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Transit times to APO/FPO locations may vary significantly depending on military mail processing.
Address Accuracy and Delivery Issues
Customers are responsible for ensuring that all shipping information provided at checkout is accurate and complete. Bike Junkies is not responsible for delays, lost packages, or delivery failures caused by incorrect or incomplete addresses. If a package is returned due to an address error, additional shipping charges may apply to resend the order.
Lost, Delayed, or Damaged Shipments
If a shipment is delayed, lost, or arrives damaged, customers should contact us promptly so we can assist with initiating a claim or resolving the issue with the carrier. While we support the process, final decisions regarding claims are made by the carrier.
Tracking Information
A tracking number is provided via email once the shipping label has been created. Tracking updates may take up to 24 hours to appear after the label is generated.
Shipping Restrictions
Certain items may be subject to shipping restrictions due to size, weight, or hazardous material regulations. If an order cannot be shipped due to such restrictions, we will notify the customer to arrange an alternative solution.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
For warranty issues please contact us at support@bikejunkies.com. Each Brand is different and we can provide instruction to complete warranty issues.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
