Thread Inserts (21 items found)

Stripped threads don't have to mean a scrapped part. Ace Hardware carries professional-grade thread inserts and repair kits from OEMTOOLS and GEARWRENCH, engineered to restore damaged threads in engine blocks, machinery and other metal components so fasteners hold firm again.

Helical Thread Repair Kits

Complete repair kits provide all the components needed to fix a damaged internal thread. These kits are typically used for engine blocks, machinery and general metalwork.

• All-in-one solutions: Available kits often include drills, taps, installation tools and multiple inserts. Having a full kit can help deliver more consistent results when restoring metric or imperial threads.
• Specifications: Selections typically include sizes like 1/4 inch, 3/8 inch and various metric pitches. These are frequently used in auto tools and maintenance to help salvage expensive parts.
• Mechanical repairs: These kits can support professional-grade results in auto body repair They are often used with automotive adhesives to help provide a secure set for fasteners.

Helical Thread Inserts and Replacement Parts

Individual inserts are intended for use as replacement components or for reinforcing threads in softer materials. These stainless steel coils can help prevent future stripping by providing a harder thread surface.

• Durable construction: Available inserts feature non-locking helical designs made from high-strength stainless steel. These are often used alongside automotive siphons and pumps in mechanical shops.
• Reinforcement: Using inserts in aluminum or plastic can help support long-term durability of the connection. They are frequently used in conjunction with automotive gasket compounds and automotive hoses.

Thread Repair Files

Thread files are used to clean and restore the external threads on bolts or studs. These specialty tools are intended for reshaping thread profiles that have been flattened or damaged by corrosion.

• Precision cleaning: Available files are designed for restoring various thread pitches on external fasteners. They are often used to help salvage hardware that is difficult to replace.
• Maintenance uses: A thread file can help you clean out debris from damaged studs. This can help deliver a smoother fit for nuts and other hardware during assembly.

How Do You Determine the Correct Size for a Thread Insert?

To find the right insert, you must match the thread diameter and pitch of the original bolt. Most kits are labeled with common sizes like M8-1.25 or 3/8-16, which helps you select the exact match to help ensure the fastener fits securely after the repair.

Can Thread Inserts Be Used to Repair Spark Plug Holes?

Yes, specialized thread repair kits are often used for spark plug holes in automotive engines. These inserts are designed to handle the high heat and pressure of the combustion chamber while helping to provide a strong connection for the new spark plug.

Shop Thread Inserts Near You at Ace Hardware

Our helpful store staff is ready to help you find the thread repair tools you need for your specific mechanical project. Shop thread inserts near you at Ace Hardware to salvage stripped fasteners and get your repair back on track. Prefer to order from home? Our selection is available online for fast delivery or in-store pickup.