Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
The Dorman Metric Brass Hex Nut (M10-1.25) is a standard replacement fastener manufactured to specific thread tolerance standards for dependable fitment. Made from durable brass and corrosion tested through salt spray testing, it’s designed to provide the required strength and longevity in demanding environments.
This metric fine-thread nut features a ball seat for compatible applications that require that seating style. It uses a 17 mm hex tool size for common installation tools and is supplied in a box with 25 nut studs listed in the package contents. Backed by Dorman’s engineering and U.S.-based quality control teams, it’s suitable for automotive service as well as general fastening needs where the correct seat type and thread are required.
Brass construction manufactured to specific thread tolerance standards
Salt spray corrosion tested to help ensure corrosion resistance
Ball seat design for compatible applications
Metric fine-thread M10-1.25 for OE-style fitment
Backed by professional engineers and U.S.-based quality control
Boxed packaging with 25 nut studs listed in package contents
Material: Brass
Finish: Brass
Metric Or SAE: Metric
Nut Grade: Standard
Thread Size: M10-1.25
Thread Type: Fine
Thread Direction: Clockwise
Seat Type: Ball
Head Tool Size: 17 mm
Callout Size: Hex Size - 17 mm
Height: 7.82 mm
Inside Diameter: 8.5 mm
Locking: No
Washer Attached: No
Shouldered End: No
Heat Hardened: No
Selling Package Quantity UOM: Piece
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
