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The Dorman Double Ended Stud is a steel replacement fastener designed for high corrosion resistance and long service life in demanding environments. Manufactured to strict engineering quality standards, it’s a dependable option for automotive repairs as well as a broad range of industrial and commercial applications.
This double-ended stud features two thread configurations—1/4-20 x 3/8 in. on one end and 1/4-28 x 7/16 in. on the other—making it ideal for replacement or custom fastening needs where mixed thread pitches are required. Its rust-resistant construction helps improve durability over time for reliable service.
High-quality steel construction for dependable strength
Resistant to rust for improved long-term durability
Manufactured to strict engineering quality standards
Suitable for automotive, industrial, and commercial applications
Double-ended design with two thread pitches for flexible fitment
Color: Silver
Material: Steel
Fastener Category: Bolts
Thread Diameter: 1/4; 1/4
Thread Size: 1/4 - 20; 1/4 - 28
Threads Per Inch: 18; 24
Length: 0.375 in; 0.438 in
End 1 Thread Diameter: 5/16 in
End 2 Thread Diameter: 5/16 in
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).
