How to Install Key-Locking Inserts
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Inch-to-Inch Female Hex Thread Adapters
Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench. The threads on these adapters have various sizes and spacing, so you can increase or decrease thread size or adapt from coarse to fine threading. You can also use them to change the gender of a connection from male to female. Small adapters can work as threaded standoffs, which position and separate circuit boards and other components in assemblies.
Zinc-plated steel adapters resist corrosion until the plating wears away and are often used in dry environments.
18-8 stainless steel adapters withstand wet environments but will corrode when exposed to salt water and other chloride solutions.
316 stainless steel adapters are ideal in wet environments and will not corrode when exposed to salt water or harsh chemicals.
Adapters that meet ASTM specifications are made from or plated with materials that adhere to standards for chemical and physical properties, such as hardness.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Thread Fit | Hex | Each | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | (A) | (B) | Size | Lg. | Specifications Met | Hardness | 1-9 | 10-Up | |
Zinc-Plated Steel | ||||||||||||
5/8"-11 | 7/8"-9 | 5/8" | 3/4" | Class 2B | Class 2B | 1 1/4" | 1 3/4" | ASTM A108, ASTM B633 | Rockwell B65 | 000000000 | 00000 | 00000 |
3/4"-10 | 7/8"-9 | 3/4" | 3/4" | Class 2B | Class 2B | 1 1/4" | 1 3/4" | ASTM A108, ASTM B633 | Rockwell B65 | 000000000 | 0000 | 0000 |
7/8"-9 | 1"-8 | 7/8" | 1" | Class 2B | Class 2B | 1 3/8" | 2" | ASTM A108, ASTM B633 | Rockwell B65 | 000000000 | 0000 | 0000 |
7/8"-9 | 1 1/4"-7 | 7/8" | 1 1/16" | Class 2B | Class 2B | 1 5/8" | 3" | ASTM A108, ASTM B633 | Rockwell B65 | 000000000 | 00000 | 00000 |
18-8 Stainless Steel | ||||||||||||
5/8"-11 | 7/8"-9 | 5/8" | 7/8" | Class 2B | Class 2B | 1 1/4" | 2" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
3/4"-10 | 7/8"-9 | 3/4" | 7/8" | Class 2B | Class 2B | 1 1/4" | 2 1/4" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
7/8"-9 | 1"-8 | 7/8" | 1" | Class 2B | Class 2B | 1 3/8" | 2" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
7/8"-9 | 1 1/4"-7 | 7/8" | 1 1/16" | Class 2B | Class 2B | 1 5/8" | 3" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
316 Stainless Steel | ||||||||||||
5/8"-11 | 7/8"-9 | 5/8" | 7/8" | Class 2B | Class 2B | 1 1/4" | 2" | ASTM A276 | Rockwell B83 | 000000000 | 00000 | 00000 |
3/4"-10 | 7/8"-9 | 3/4" | 7/8" | Class 2B | Class 2B | 1 1/4" | 2 1/4" | ASTM A276 | Rockwell B83 | 000000000 | 00000 | 00000 |
7/8"-9 | 1"-8 | 7/8" | 1" | Class 2B | Class 2B | 1 3/8" | 2" | ASTM A276 | Rockwell B83 | 000000000 | 00000 | 00000 |
Left-Hand to Right-Hand Female Hex Thread Adapters
Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.
Choose black-oxide steel adapters to match the aesthetics of your system or for their mild corrosion resistance. The finish won't chip or rub off. They resist rust in indoor and dry environments, but avoid using them in corrosive environments.
Zinc-plated steel adapters are strong and corrosion resistant.
For technical drawings and 3-D models, click on a part number.
Black-Phosphate Steel Easy-to-Install Thread-Locking Inserts
A black-phosphate finish provides mild corrosion resistance. Also known as E-Z Lok, these inserts use Loctite® adhesive to keep them in place. The adhesive reaches full strength after 72 hours. Installation requires a drill bit and a standard tap. Then set the insert with a bolt and two nuts, or use an installation bit.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
To drive slotted inserts, you can use a slotted screwdriver instead of using an installation bit or a bolt and two nuts.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Key-Locking Inserts
Made of stainless steel, these inserts have good corrosion resistance. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or change threads in soft metals such as aluminum. Inserts may be mildly magnetic. They’re comparable to Keensert® inserts. Installation requires a drill bit, a standard tap, an installation tool, and a hammer.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
Inserts with an extra-thick wall are stronger than thick- and thin-wall inserts. Use them to reduce the size of tapped holes.
For technical drawings and 3-D models, click on a part number.
Inserts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Each | Installation Tools | |||||||||
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | 1-9 | 10-Up | Each | ||
18-8 Stainless Steel with Thick Wall | ||||||||||
7/8"-9 | 1 1/4"-12 | 1 1/4" | 1 3/16" | 1.188" | 4 | 000000000 | 000000 | 000000 | 000000000 | 000000 |
18-8 Stainless Steel with Extra Thick Wall | ||||||||||
7/8"-9 | 1 3/8"-12 | 1 1/4" | 1 5/16" | 1.313" | 4 | 000000000 | 000000 | 000000 | 000000000 | 00000 |
Black-Phosphate Steel Key-Locking Inserts
A black-phosphate finish provides mild corrosion resistance. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or change threads in soft metals such as aluminum. They’re comparable to Keensert® inserts. Installation requires a drill bit, a standard tap, an installation tool, and a hammer.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole with stripped threads.
Inserts with an extra thick wall are stronger than thick- and thin-wall inserts. Use them to reduce the size of tapped holes.
For technical drawings and 3-D models, click on a part number.
Inserts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Each | Installation Tools | |||||||||
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | 1-9 | 10-Up | Each | ||
Black-Phosphate Steel with Thick Wall | ||||||||||
7/8"-9 | 1 1/4"-12 | 1 1/4" | 1 3/16" | 1 3/16" | 4 | 000000000 | 000000 | 000000 | 000000000 | 000000 |
Black-Phosphate Steel with Extra Thick Wall | ||||||||||
7/8"-9 | 1 3/8"-12 | 1 1/4" | 1 5/16" | 1 5/16" | 4 | 000000000 | 00000 | 00000 | 000000000 | 00000 |
Mil. Spec. Stainless Steel Key-Locking Inserts
These inserts are made to stringent military specifications. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or change threads in soft metals such as aluminum. Inserts may be mildly magnetic. They’re comparable to Keensert® inserts. Installation requires a drill bit, a standard tap, an installation tool, and a hammer.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
For technical drawings and 3-D models, click on a part number.
Inserts | Installation Tools | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | Specifications Met | Each | Each | ||
303 Stainless Steel with Thick Wall | ||||||||||
7/8"-9 | 1 1/4"-12 | 1 1/4" | 1 3/16" | 1.192" | 4 | MS51831-110 | 000000000 | 000000 | 000000000 | 0000000 |
7/8"-9 | 1 3/8"-12 | 1 1/4" | 1 5/16" | 1.317" | 4 | MS51832-110 | 000000000 | 00000 | 000000000 | 00000 |
Mil. Spec. Alloy Steel Key-Locking Inserts
The strongest key-locking inserts we offer, these inserts are made to stringent military specifications. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or change threads in soft metals such as aluminum. Inserts may be mildly magnetic. They’re comparable to Keensert® inserts. Installation requires a drill bit, a standard tap, an installation tool, and a hammer.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
For technical drawings and 3-D models, click on a part number.
Key-Locking Insert Assortments with Installation Tool
These assortments include various sizes of key-locking inserts with thick and thin walls, and an installation tool. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or convert threads in soft metals such as aluminum. They’re comparable to Keensert® inserts.
18-8 stainless steel inserts are more corrosion resistant than black-phosphate steel. They may be mildly magnetic.
Black-phosphate steel inserts are mildly corrosion resistant.
Choose assortments with thick-wall inserts for greater strength than thin-wall inserts, or to fill a large hole.
For technical drawings and 3-D models, click on a part number.
For Tap | ||||||
---|---|---|---|---|---|---|
Includes | No. of Inserts Included | Thread Size | Drill Bit Size | For Max. Hole Dia. | Each | |
Inch | ||||||
18-8 Stainless Steel with Thick Wall | ||||||
1/4"-20 Thread × 3/8" Installed Lg. (20 Each) 5/16"-18 Thread × 0.438" Installed Lg. (15 Each) 3/8"-16 Thread × 1/2" Installed Lg. (10 Each) 7/16"-14 Thread × 5/8" Installed Lg. (10 Each) 1/2"-13 Thread × 5/8" Installed Lg. (6 Each) 9/16"-12 Thread × 0.813" Installed Lg. (5 Each) 5/8"-11 Thread × 7/8" Installed Lg. (3 Each) 3/4"-10 Thread × 1 1/8" Installed Lg. (3 Each) 7/8"-9 Thread × 1 1/4" Installed Lg. (3 Each) 1"-8 Thread × 1 3/8" Installed Lg. (2 Each) Installation Tool | 77 | 7/16"-14 1/2"-13 9/16"-12 5/8"-11 3/4"-16 7/8"-14 1 1/8"-12 1 1/4"-12 1 3/8"-12 | X 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" | 0.397" 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" | 000000000 | 0000000 |
Black-Phosphate Steel with Thick Wall | ||||||
1/4"-20 Thread × 3/8" Installed Lg. (20 Each) 5/16"-18 Thread × 0.438" Installed Lg. (15 Each) 3/8"-16 Thread × 1/2" Installed Lg. (10 Each) 7/16"-14 Thread × 5/8" Installed Lg. (10 Each) 1/2"-13 Thread × 5/8" Installed Lg. (6 Each) 9/16"-12 Thread × 0.813" Installed Lg. (5 Each) 5/8"-11 Thread × 7/8" Installed Lg. (3 Each) 3/4"-10 Thread × 1 1/8" Installed Lg. (3 Each) 7/8"-9 Thread × 1 1/4" Installed Lg. (3 Each) 1"-8 Thread × 1 3/8" Installed Lg. (2 Each) Installation Tool | 77 | 7/16"-14 1/2"-13 9/16"-12 5/8"-11 3/4"-16 7/8"-14 1 1/8"-12 1 1/4"-12 1 3/8"-12 | X 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" | 0.397" 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" | 000000000 | 000000 |
Key-Locking Inserts with Installation Tool
Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. These inserts are used to repair or convert threads in soft metals such as aluminum. They’re comparable to Keensert® inserts.
18-8 stainless steel inserts are more corrosion resistant than black-phosphate steel. They may be mildly magnetic.
Black-phosphate steel inserts are mildly corrosion resistant.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
For technical drawings and 3-D models, click on a part number.
Screw-Locking Key-Locking Inserts
Forming the strongest hold of any of our threaded inserts, these inserts have a distorted internal thread to lock screws into place and keys that drive into surrounding material to prevent slipping and rotating. This creates a mechanical lock, which is stronger than the chemical lock from adhesive on thread-locking inserts. Because they’re made of a solid piece of metal, these inserts are also stronger than helical inserts, which are made of coiled wire. They're often used in molds, tools and dies, and suspension systems in vehicles to create completely new threads, add strong threads in soft metal, or replace existing threads that are damaged or need to be resized.
A dry-film lubricant makes it easy to install them and screw fasteners in. To install, use a tap to create the threads in your material and an installation tool to drive the keys into the material. All are made to tight tolerances with strictly controlled materials. Many inch sizes also meet military or aerospace standards for dimensions and material.
These inserts resist corrosion in wet environments. Inserts with thick walls are most commonly used; they’re stronger than thin-wall inserts and are used in larger holes.
For technical drawings and 3-D models, click on a part number.
Forcing Screws for Pullers
Make your old puller work like new by replacing worn forcing screws.
Thread Size | Lg. | Material | Head Style | Each | |
7/8"-9 | 8" | Steel | Hex | 0000000 | 0000000 |
Ridgid Dies for Cutting Screw Threads
Use these dies with Ridgid pipe and conduit threader die heads on Ridgid pipe and conduit threaders.
For Thread Size | For Pipe Threader Model Number | Number of Pieces | Material | Each | |
For UNC Right-Hand Thread | |||||
---|---|---|---|---|---|
For Die Head Models 504A, 711, 811A, 815A, 816, 817 | |||||
7/8"-9 | 300, 535A | 4 | High-Speed Steel | 0000000 | 0000000 |