Dorman Autograde Hex Lock Nuts with Nylon Ring Grade 2 Thread Size 5/16-18 for Automotive Repair 250-011
Dorman Autograde Hex Lock Nuts with Nylon Ring Grade 2 Thread Size 5/16-18 for Automotive Repair 250-011
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55 in stock
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Hex lock nuts with nylon ring grade 2 thread size 5/16-18 used to replace worn or missing fasteners in automotive and general repair applications.
Built to meet the manufacturer's design intent for reliable service, these nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity. They are engineered as direct-fit replacements designed to match OE form, fit, and function.
Key Features
- Thread size 5/16-18 inches for precise fitting
- Grade 2 classification for standard strength requirements
- Integrated nylon ring prevents loosening from vibration
- Corrosion tested for extended service life
- Hex head design allows for easy installation with standard tools
- Manufactured by Dorman Autograde for consistent quality
Benefits
- Secures components firmly to prevent rattling or failure
- Reduces the risk of repeat repairs due to loose fasteners
- Restores vehicle safety and structural integrity
- Provides a cost-effective solution compared to dealer parts
- Ensures smoother installation with direct-fit engineering
- Offers peace of mind with backing from US-based engineers
Application
Ideal for mechanics and DIY enthusiasts needing reliable locking nuts for suspension, engine bay, or chassis repairs where vibration resistance is critical. Suitable for general automotive maintenance and industrial fastening tasks requiring Grade 2 specifications.
Fitment Notes
- Universal fitment for applications requiring 5/16-18 thread size
- Verify thread pitch and diameter against original equipment before installation
- Compatible with various makes and models using this standard fastener size
Why Choose Dorman?
- Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they're made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.
What's in the Box
- 50 Piece bulk pack of hex lock nuts
Item Dimensions
- Package measures 3.6 inches x 2.4 inches x 2.2 inches
- Total package weight is 0.6 lbs
