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Thread Size
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For Tap Thread Size
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Drill Bit Size
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Thread Spacing
Export Control Classification Number (ECCN)
DFARS Specialty Metals
Mount Type
Shape
For Tap Type
Removable Drill Bushings for Thin Metal
 |
Unlike most bushings, these won’t buckle the material or distort the hole when installed in thin-gauge aluminum and steel fixture plates. They’re held in place by a lock ring (sold separately), so they’re easy to remove and reuse. Also known as jig bushings, they accurately guide drill bits, counterbores, reamers, and other cutting tools. Use them to make sure your drilled holes and cuts are consistent from part to part.
Tolerance | Thread | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID | OD | Lg. | For Drill Bit Size | ID | OD | For Material Thk. | Size | Lg. | Direction | Material | Hardness | Each | ||
| 0.323" | 5/8" | 1/2" | P | 0.0001" to 0.0015" | 0.003" to 0.005" | 1/64" to 3/8" | 5/8"-18 | 1/4" | Left Hand | 1144 Carbon Steel | Rockwell C59 | 8509A642 | 000000 | |
| 0.3281" | 5/8" | 1/2" | 21/64" | 0.0001" to 0.0015" | 0.003" to 0.005" | 1/64" to 3/8" | 5/8"-18 | 1/4" | Left Hand | 1144 Carbon Steel | Rockwell C59 | 8509A643 | 00000 | |
| 0.332" | 5/8" | 1/2" | Q | 0.0001" to 0.0015" | 0.003" to 0.005" | 1/64" to 3/8" | 5/8"-18 | 1/4" | Left Hand | 1144 Carbon Steel | Rockwell C59 | 8509A644 | 00000 | |
| 0.3438" | 5/8" | 1/2" | 11/32" | 0.0001" to 0.0015" | 0.003" to 0.005" | 1/64" to 3/8" | 5/8"-18 | 1/4" | Left Hand | 1144 Carbon Steel | Rockwell C59 | 8509A645 | 00000 | |
| 0.375" | 5/8" | 1/2" | 3/8" | 0.0001" to 0.0015" | 0.003" to 0.005" | 1/64" to 3/8" | 5/8"-18 | 1/4" | Left Hand | 1144 Carbon Steel | Rockwell C59 | 8509A25 | 00000 | |
 |
For Bushing OD | For Material Thk. | OD | Lg. | Material | Each | ||
|---|---|---|---|---|---|---|---|
| 5/8" | 1/64" to 1/8" | 11/16" | 3/8" | Aluminum | 8509A525 | 00000 | |
| 5/8" | 1/64" to 1/8" | 3/4" | 3/8" | Aluminum | 8509A33 | 0000 | |
| 5/8" | 9/64" to 3/16" | 11/16" | 5/16" | Aluminum | 8509A536 | 0000 | |
| 5/8" | 9/64" to 3/16" | 3/4" | 5/16" | Aluminum | 8509A531 | 0000 | |
| 5/8" | 13/64" to 3/8" | 11/16" | 3/16" | Aluminum | 8509A547 | 0000 | |
| 5/8" | 13/64" to 3/8" | 3/4" | 3/16" | Aluminum | 8509A542 | 0000 |
Metric Ultra-Precision Lead Screws and Nuts
 |  |
Style A |
Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size, thread type, thread size, thread pitch, and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
|
Style A |
Acetal—Acetal nuts have good wear and corrosion resistance.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
External Thread | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||
| A | M8 × 1.5 mm | 1" | 0.548" | 11/16" | Metric Rounded Trapezoidal | 1:1 | 1 | 1.5 | 5/8"-18 | 1/4" | Not Rated | 8,000 | 75 | -40 to 185 | 7549K61 | 000000 | ||
Reinforced Threaded-Hole Bumpers
 |
Style 1 |
With a metal base plate for added strength, these bumpers withstand repeated impacts for a longer service life than all-rubber bumpers. You can also use them as spacers and noise reducers. Twist them onto a threaded stud on your equipment, or pair them with your own stud to create a custom-length bumper.
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|
Style 1 |
A good choice for oily equipment that's exposed to sunlight, rain, and ozone. These aren't as oil resistant as Buna-N bumpers, but they can be used outdoors.
Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
Thread | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Dp. | OD | Ht. | Hardness | Hardness Rating | Color | Temp., ° F | Base Plate Material | Nonmarking | For Use Outdoors | Each | |||
Style 1 | ||||||||||||||
| 5/8"-18 | 1/2" | 1 1/4" | 1 1/4" | Durometer 40A | Medium Soft | Black | -40 to 200 | Steel | No | Yes | 9546K73 | 000000 | ||
| 5/8"-18 | 1/2" | 1 1/4" | 1 1/4" | Durometer 75A | Hard | Black | -40 to 200 | Steel | No | Yes | 9546K523 | 00000 | ||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 40A | Medium Soft | Black | -40 to 200 | Steel | No | Yes | 9546K14 | 00000 | ||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 75A | Hard | Black | -40 to 200 | Steel | No | Yes | 9546K525 | 00000 | ||
Abrasion-Resistant Polyurethane Rubber
|
Style 1 |
Our toughest rubber bumpers, they keep their shape even when knocked and scraped by metal and other abrasive materials. They're often used on industrial vehicles, conveyors, and heavy construction equipment.
Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
Thread | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Dp. | OD | Ht. | Hardness | Hardness Rating | Color | Temp., ° F | Base Plate Material | Nonmarking | For Use Outdoors | Each | |||
Style 1 | ||||||||||||||
| 5/8"-18 | 1/2" | 1 1/4" | 1 1/4" | Durometer 40A | Medium Soft | Red | -40 to 200 | Steel | No | Yes | 9223K13 | 000000 | ||
| 5/8"-18 | 1/2" | 1 1/4" | 1 1/4" | Durometer 85A | Hard | Red | -40 to 200 | Steel | No | Yes | 9546K83 | 00000 | ||
| 5/8"-18 | 1/2" | 1 1/4" | 1 1/4" | Durometer 95A | Extra Hard | Black | -40 to 200 | Steel | No | Yes | 9546K455 | 00000 | ||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 40A | Medium Soft | Red | -40 to 200 | Steel | No | Yes | 9223K15 | 00000 | ||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 85A | Hard | Red | -40 to 200 | Steel | No | Yes | 9546K56 | 00000 | ||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 95A | Extra Hard | Black | -40 to 200 | Steel | No | Yes | 9546K457 | 00000 | ||
Oil-Resistant Buna-N
|
Style 1 |
These bumpers resist oil and fuels better than other rubber bumpers. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.
Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
Thread | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Dp. | OD | Ht. | Hardness | Hardness Rating | Color | Temp., ° F | Base Plate Material | Nonmarking | For Use Outdoors | Each | |||
Style 1 | ||||||||||||||
| 5/8"-18 | 5/8" | 1 3/4" | 1 5/8" | Durometer 40A | Medium Soft | White | -60 to 175 | Steel | Yes | No | 9546K466 | 000000 | ||
Steel Socket Nuts
 |
Also known as Allen nuts, use these with socket head cap screws in recessed holes and tight spaces that don't have enough clearance for a wrench. Tighten them with a 6-point hex key. They can also be used as an insert by pressing or drawing them into nonhardened steel, cast iron, or soft nonferrous metal or by molding them into plastic, ceramic, fiber, and similar materials. Made from alloy steel, they're comparable in strength to Grade 9 bolts.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Thread Size | OD | Ht. | Threading | Thread Dp. | For Hole Dia. | Hex Key Size | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Alloy Steel | ||||||||||
| 5/8"-18 | 0.98" | 1" | Partially Threaded | 0.5" | 1.028" | 5/8" | 92067A035 | 00000 | ||
Thread-Locking Threaded Inserts
 |
Inserts | Installation Tools | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Drive Style | Pkg. Qty. | Pkg. | Each | ||||
Standard Wall | ||||||||||||
Black Phosphate-Coated Steel | ||||||||||||
| 5/8"-18 | 7/8"-9 | 0.688" | 49/64" | 0.766" | Slotted | 5 | 90248A087 | 000000 | 94110A190 | 000000 | ||
| M12 x 1.25 mm | 5/8"-18 | 0.453" | 37/64" | 0.578" | — | 1 | 97084A312 | 0000 | ——— | 0 | ||
| M12 x 1.25 mm | 5/8"-18 | 0.703" | 37/64" | 0.578" | — | 1 | 97084A313 | 0000 | ——— | 0 | ||
Thin Wall | ||||||||||||
18-8 Stainless Steel | ||||||||||||
| 1/2"-13 | 5/8"-18 | 0.625" | 37/64" | 0.578" | Slotted | 1 | 94165A267 | 0000 | 94110A170 | 00000 | ||
| 1/2"-20 | 5/8"-18 | 0.625" | 37/64" | 0.578" | Slotted | 1 | 94165A271 | 0000 | 94110A170 | 00000 | ||
| 5/8"-18 | 3/4"-16 | 0.687" | 11/16" | 0.688" | Slotted | 1 | 94165A279 | 0000 | 94110A190 | 00000 | ||
| M12 x 1.75 mm | 5/8"-18 | 0.625" | 37/64" | 0.578" | Slotted | 1 | 97120A340 | 0000 | 94110A170 | 00000 | ||
Tube End Weld Nuts
 |
 |
For Tube Wall Thk. | Thread Size | Ht. | Threading | Thread Lg. | Each | |||
|---|---|---|---|---|---|---|---|---|
4130 Alloy Steel | ||||||||
For 1 1/8" OD Tubes | ||||||||
| 0.058" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A480 | 00000 | ||
| 0.065" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A520 | 0000 | ||
| 0.083" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A540 | 0000 | ||
| 0.095" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A590 | 0000 | ||
For 1 1/4" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A350 | 00000 | ||
| 0.12" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A360 | 00000 | ||
For 1 3/8" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A630 | 00000 | ||
| 0.12" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A660 | 00000 | ||
For 1 1/2" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A710 | 00000 | ||
Reinforced Threaded-Stud Bumpers with Steel Core
 |
Style 1 |
Our most durable and impact-resistant bumpers. With a steel core, they withstand repeated impacts for a longer service life than all-rubber bumpers. You can also use them as spacers and noise reducers. No separate fasteners are needed—just twist them into a threaded hole.
Multipurpose Neoprene
|
Style 1 |
A good choice for oily equipment that's exposed to sunlight, rain, and ozone. These aren't as oil resistant as Buna-N bumpers, but they can be used outdoors.
Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
Abrasion-Resistant Polyurethane Rubber
|
Style 1 |
Our toughest rubber bumpers, they keep their shape even when knocked and scraped by metal and other abrasive materials. They're often used on industrial vehicles, conveyors, and heavy construction equipment.
Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.
Thread-Locking Threaded Insert Assortments
 |
These assortments include various sizes of thread-locking inserts, which won’t back out or loosen from vibration. Also known as E-Z Lok, they come with Loctite® adhesive already applied, and the adhesive reaches full strength after 72 hours. After drilling and tapping your hole, install inserts with a wrench or use an installation bit (not included). To use a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into the hole.
Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
Black Phosphate-Coated Steel—These inserts resist occasional moisture.
No. of Inserts Included | Includes | Thread Spacing | For Tap Thread Size | Drill Bit Size | For Maximum Hole Diameter | Drive Style | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Standard Wall | ||||||||||
Black Phosphate-Coated Steel | ||||||||||
| 22 | 1/2"-20 Thread × 0.656" Installed Lg. (6 Each) 5/8"-18 Thread × 0.688" Installed Lg. (7 Each) 3/4"-16 Thread × 0.781" Installed Lg. (7 Each) 1"-14 Thread × 1 1/4" Installed Lg. (2 Each) | Fine | 3/4"-10 7/8"-9 1"-8 1 3/8"-12 | 21/32" 49/64" 7/8" 1 9/32" | 21/32" 49/64" 7/8" 1 9/32" | Slotted | 90248A115 | 000000 | ||
Key-Locking Threaded Insert Assortments with Installation Tools
 |
What you need to add or repair a range of thread sizes in soft metal, such as aluminum. These assortments include multiple key-locking inserts of each size and an installation tool. They're comparable to Keensert inserts.
Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
Black Phosphate-Coated Steel—These inserts resist occasional moisture.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
No. of Inserts Included | Includes | Thread Spacing | For Tap Thread Size | Drill Bit Size | For Max. Hole Dia. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Standard Wall | |||||||||
Black Phosphate-Coated Steel | |||||||||
| 77 | 1/4"-28 Thread × 3/8" Installed Lg. (20 Each) 5/16"-24 Thread × 0.438" Installed Lg. (15 Each) 3/8"-24 Thread × 1/2" Installed Lg. (10 Each) 7/16"-20 Thread × 5/8" Installed Lg. (10 Each) 1/2"-20 Thread × 5/8" Installed Lg. (6 Each) 5/8"-18 Thread × 7/8" Installed Lg. (3 Each) 3/4"-16 Thread × 1 1/8" Installed Lg. (3 Each) 7/8"-14 Thread × 1 1/4" Installed Lg. (3 Each) 1"-12 Thread × 1 3/8" Installed Lg. (2 Each) 9/16"-18 Thread × 0.813" Installed Lg. (5 Each) Installation Tool | Fine | 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 | 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" X | 0.397" 0.453" 0.516" 0.578" 0.703" 0.828" 1.063" 1.186" 1.313" | 90284A215 | 0000000 | ||
18-8 Stainless Steel | |||||||||
| 77 | 1/4"-28 Thread × 3/8" Installed Lg. (20 Each) 5/16"-24 Thread × 0.438" Installed Lg. (15 Each) 3/8"-24 Thread × 1/2" Installed Lg. (10 Each) 7/16"-20 Thread × 5/8" Installed Lg. (10 Each) 1/2"-20 Thread × 5/8" Installed Lg. (6 Each) 5/8"-18 Thread × 7/8" Installed Lg. (3 Each) 3/4"-16 Thread × 1 1/8" Installed Lg. (3 Each) 7/8"-14 Thread × 1 1/4" Installed Lg. (3 Each) 1"-12 Thread × 1 3/8" Installed Lg. (2 Each) 9/16"-18 Thread × 0.813" Installed Lg. (5 Each) Installation Tool | Fine | 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 | 29/64" 33/64" 37/64" 45/64" 53/64" 1 1/16" 1 3/16" 1 5/16" X | 0.397" 0.453" 0.516" 0.578" 0.703" 0.828" 1.063" 1.186" 1.313" | 90284A415 | 000000 | ||
Self-Aligning Key-Locking Threaded Inserts for Soft Metal
 |
Align threads with off-center parts. These inserts have floating threads that shift slightly so you can insert screws at a slight angle as you fasten two parts together. They're comparable to Keensert inserts.
To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.
Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
High-Strength Cadmium-Plated Alloy Steel—These inserts have the strength to stand up to high-pressure applications and a plating that helps screws thread in smoothly.
Inserts | Installation Tools | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | Each | Each | ||||
Standard Wall | |||||||||||
High-Strength Cadmium-Plated Alloy Steel | |||||||||||
| 5/16"-18 | 5/8"-18 | 0.500" | 37/64" | 0.578" | 4 | 93522A109 | 000000 | 6642N107 | 0000000 | ||
| 5/16"-24 | 5/8"-18 | 0.500" | 37/64" | 0.578" | 4 | 93522A111 | 00000 | 6642N107 | 000000 | ||
Key-Locking Threaded Inserts for Soft Metal
 |
Inserts | Installation Tools | Inserts with Installation Tools | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | Specs. Met | Each | Each | No. of Inserts Included | Each | |||||
Standard Wall | |||||||||||||||
Black Phosphate-Coated Steel | |||||||||||||||
| 5/8"-18 | 7/8"-14 | 0.875" | 53/64" | 0.828" | 4 | — | 90245A078 | 00000 | 92100A731 | 000000 | 3 | 90245A058 | 000000 | ||
18-8 Stainless Steel | |||||||||||||||
| 5/8"-18 | 7/8"-14 | 0.875" | 53/64" | 0.828" | 4 | — | 91731A068 | 00000 | 92100A731 | 00000 | 3 | 91731A070 | 00000 | ||
High-Strength High-Temperature A286 Stainless Steel | |||||||||||||||
| 5/8"-18 | 7/8"-14 | 0.875" | 53/64" | 0.828" | 4 | MS51831CA208 | 93509A320 | 00000 | ——— | 0 | — | ——— | 0 | ||
Extra-Thick Wall | |||||||||||||||
Black Phosphate-Coated Steel | |||||||||||||||
| 5/8"-18 | 1"-12 | 0.875" | 15/16" | 0.936" | 4 | — | 93302A610 | 00000 | 93302A270 | 00000 | — | ——— | 0 | ||
18-8 Stainless Steel | |||||||||||||||
| 5/8"-18 | 1"-12 | 0.875" | 15/16" | 0.938" | 4 | — | 93340A829 | 00000 | 93302A270 | 00000 | — | ——— | 0 | ||
Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
 |  |
Style B |
Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
|
Style B |
Acetal—Acetal nuts have good wear and corrosion resistance.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
External Thread | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||
| B | M8 × 2 mm | 1" | 0.548" | 11/16" | Metric Rounded Trapezoidal | 2:1 | 2 | 4 | 5/8"-18 | 1/4" | Not Rated | 8,000 | 75 | -40 to 185 | 97783A230 | 000000 | ||
Left-Hand Thread Helical Threaded Inserts with Installation Tools
 |
Save time when repairing threads in parts that rotate counterclockwise—these inserts come with installation tools. Pair them with left-hand-thread screws, and turn them the left to tighten. Also known as Heli-Coil inserts.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Inserts Included | Includes | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Pronged | |||||||||
18-8 Stainless Steel | |||||||||
| 5/8"-18 | 0.938" | 41/64" | 0.641" | 2 | Installation Tool Through-Hole Tap | 92090A659 | 0000000 | ||
Helical Threaded Inserts with Installation Tools
 |
Drill Bit, Installation Tool and Through-Hole Tap |
Quickly restore stripped threads—these inserts come with through-hole taps and installation tools. The tough coils on these inserts expand once installed to anchor in a tapped hole.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Key-Locking Threaded Inserts with Installation Tools
 |
Paired with the right tool for installation, these inserts create strong threads in soft metal, such as aluminum. They have keys that drive into material to prevent inserts from slipping and rotating in the hole.
Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
Black Phosphate-Coated Steel—These inserts resist occasional moisture.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Seize-Resistant Swage-Locking Threaded Inserts
 |  |
Smoothly install these inserts for strong threads near the edges and corners of soft metal surfaces. They’re lubricated to prevent sticking as you thread them in. Since these have thinner walls than our key-locking and thread-locking inserts, they don’t need as much space and won't bulge or crack the material. The knurls press (swage) into the material to keep inserts in place when you tighten or loosen a screw.
To install these inserts, you need a drill bit, a counterbore, a standard tap, an installation tool, and a hammer. Drill a hole, counterbore the top, and tap it. Place the insert into the installation tool, then hand-tighten it into the tapped hole. Strike the tool to secure the insert and drive the knurls into the surrounding material.
High-Strength Dry-Film-Lubricated Cadmium-Plated Alloy Steel—Stronger than our 17-4 PH stainless steel inserts, these inserts absorb impact without cracking and stand up to high-pressure applications. The cadmium plating prevents corrosion in wet environments.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Swage-Locking Threaded Inserts
 | |
Add strong threads to the edges of soft metal without bulging or cracking the material. These inserts have thinner walls than our key-locking and thread-locking inserts, so they don’t need as much space around them. The knurls press (swage) into the material to keep inserts in place when you tighten or loosen a screw.
To install these inserts, you need a drill bit, a counterbore, a standard tap, an installation tool, and a hammer. Drill a hole, counterbore the top, and tap it. Place the insert into the installation tool, then hand-tighten it into the tapped hole. Strike the tool to secure the insert and drive the knurls into the surrounding material.
High-Strength 17-4 PH Stainless Steel—The strongest stainless steel inserts we offer. They handle high-stress installations, such as pump and compressor housings, and the heavy vibration of aircraft parts. They won’t rust in wet and outdoor environments but can’t withstand the harsh chemicals and acids that 316 stainless steel can.
Threaded Rod Collars
Left-Hand-Thread Helical Threaded Inserts
 |
Fix threads in parts that rotate counterclockwise. Pair these inserts with left-hand-thread screws and turn them to the left to tighten. Also known as Heli-Coil inserts.
Installation requires a drill bit, a helical insert tap, and an installation tool.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Mil.-Spec. Key-Locking Threaded Inserts For Soft Metal
 |
Inserts | Installation Tools | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | Specs. Met | Each | Each | ||||
Standard Wall | ||||||||||||
High-Strength Cadmium-Plated Alloy Steel | ||||||||||||
| 5/8"-18 | 7/8"-14 | 0.875" | 53/64" | 0.828" | 4 | MS51831A208 | 95101A135 | 000000 | ——— | 0 | ||
18-8 Stainless Steel | ||||||||||||
| 5/8"-18 | 7/8"-14 | 0.875" | 53/64" | 0.833" | 4 | MS51831-208, NAS1395C10 | 93904A241 | 00000 | ——— | 0 | ||
Extra-Thick Wall | ||||||||||||
18-8 Stainless Steel | ||||||||||||
| 5/8"-18 | 1"-12 | 0.875" | 15/16" | 0.942" | 4 | MS51832-208 | 93904A242 | 00000 | 93904A286 | 000000 | ||
Screw-Locking Helical Threaded Inserts
 |
Pronged |
The irregularly shaped threads tightly grip screws to prevent them from loosening or backing out under vibration. Use these inserts to create or repair threads in pumps and other machinery that shakes and rattles. Also known as Heli-Coil inserts.
Installation requires a drill bit, a helical insert tap, and an installation tool.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specs. Met | Pkg. Qty. | Pkg. | Each | Each | Each | ||||||
Pronged | |||||||||||||||
18-8 Stainless Steel | |||||||||||||||
| 5/8"-18 | 0.625" | 41/64" | 0.641" | MS21209F1010, NASM21209 | 1 | 90296A236 | 00000 | 91709A158 | 000000 | 91709A476 | 0000000 | 90261A182 | 0000000 | ||
| 5/8"-18 | 0.938" | 41/64" | 0.641" | MS21209F1015, NASM21209 | 1 | 90296A237 | 0000 | 91709A158 | 00000 | 91709A476 | 000000 | 90261A182 | 000000 | ||
Helical Threaded Inserts
 |
Pronged |
Restore, reinforce, or create threads in metal. The tough coils on these inserts expand once installed to anchor in a tapped hole. Also known as Heli-Coil inserts, they're often used in engine heads and machinery housings where strong connections are critical. Unlike threadlocking inserts, you can remove and reuse them without them losing their strength.
Installation requires a drill bit, a helical insert tap, and an installation tool.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | Inserts with Installation Tools | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specs. Met | Pkg. Qty. | Pkg. | Each | Each | Each | No. of Inserts Included | Each | |||||||
Pronged | ||||||||||||||||||
18-8 Stainless Steel | ||||||||||||||||||
| 5/8"-18 | 0.625" | 41/64" | 0.641" | MS124662 | 1 | 91732A541 | 00000 | 91709A158 | 000000 | 91709A476 | 0000000 | 90261A182 | 0000000 | 10 | 98356A151 | 0000000 | ||
| 5/8"-18 | 0.938" | 41/64" | 0.641" | MS124702 | 1 | 91732A238 | 0000 | 91709A158 | 00000 | 91709A476 | 000000 | 90261A182 | 000000 | 6 | 91732A038 | 000000 | ||
Left-Hand-Thread Tube End Weld Nuts
 |
 |
For Tube Wall Thk. | Thread Size | Ht. | Threading | Thread Lg. | Each | |||
|---|---|---|---|---|---|---|---|---|
4130 Alloy Steel | ||||||||
For 1 1/8" OD Tubes | ||||||||
| 0.058" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A306 | 00000 | ||
| 0.065" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A308 | 0000 | ||
| 0.083" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A401 | 0000 | ||
| 0.095" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A404 | 0000 | ||
For 1 1/4" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 1/2" | Fully Threaded | 1 1/2" | 94640A354 | 00000 | ||
| 0.12" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A364 | 00000 | ||
For 1 3/8" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A406 | 00000 | ||
| 0.12" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 9/16" | 94640A408 | 00000 | ||
For 1 1/2" OD Tubes | ||||||||
| 0.095" | 5/8"-18 | 1 7/8" | Partially Threaded | 1 5/8" | 94640A501 | 00000 | ||
