Inch-to-Inch Male-Female Hex Thread Adapters
Change thread sizes or types, such as fine to coarse threads, on parts without changing gender. These adapters can also be used as standoffs to position components in assemblies and to create space between parts. They have an external hex, so you can tighten them with a wrench.
18-8 stainless steel adapters resist corrosion in wet environments but will corrode when exposed to salt water and chemicals. They may be mildly magnetic. 316 stainless steel adapters are for use in wet environments and have the best corrosion resistance. Unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and chemicals. They may be mildly magnetic.
Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific 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. | Gender | Thread Fit | Hex | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | (A) | (B) | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | ||||||||||||||
| 6-40 | 4-40 | 1/4" | 1/4" | Male | Female | Class 2A | Class 2B | 1/4" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
| 6-40 | 6-32 | 1/4" | 7/16" | Male | Female | Class 2A | Class 2B | 3/8" | 3/4" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| 6-40 | 8-32 | 1/4" | 7/16" | Male | Female | Class 2A | Class 2B | 3/8" | 3/4" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
316 Stainless Steel | ||||||||||||||
| 6-40 | 4-40 | 1/4" | 1/4" | Male | Female | Class 2A | Class 2B | 1/4" | 1/2" | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 |
Inch-to-Metric Male-Female Hex Thread Adapters
Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench. You can also use them to increase or reduce your thread size, or to create space between parts in an assembly.
Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
18-8 stainless steel adapters can be used in wet environments, but chemicals or salt water will cause staining and rust spots.
For areas exposed to salt water or chemicals, 316 stainless steel adapters are the best choice. Only harsh chemicals, such as hydrochloric acid, will cause them to corrode.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Gender | Thread Fit | Hex | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | Pitch (A), mm | (B) | Pitch (B), mm | (A) | (B) | (A) | (B) | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | ||||||||||||||||
Inch to Metric | ||||||||||||||||
| 6-40 | __ | M4 | 0.7 | 1/4" | 1/8" | Male | Female | Class 2A | Class 6H | 1/4" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
| 6-40 | __ | M5 | 0.8 | 1/4" | 1/8" | Male | Female | Class 2A | Class 6H | 1/4" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
Metric to Inch | ||||||||||||||||
| M4 | 0.7 | 6-40 | __ | 3/8" | 1/4" | Male | Female | Class 6g | Class 2B | 3/8" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| M5 | 0.8 | 6-40 | __ | 3/8" | 7/16" | Male | Female | Class 6g | Class 2B | 3/8" | 3/4" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
316 Stainless Steel | ||||||||||||||||
Inch to Metric | ||||||||||||||||
| 6-40 | __ | M4 | 0.7 | 1/4" | 1/8" | Male | Female | Class 2A | Class 6H | 1/4" | 1/2" | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 |
| 6-40 | __ | M5 | 0.8 | 1/4" | 1/8" | Male | Female | Class 2A | Class 6H | 1/4" | 1/2" | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 |
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.
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 | |
18-8 Stainless Steel | ||||||||||||
| 4-40 | 6-40 | 9/64" | 9/64" | Class 2B | Class 2B | 5/16" | 1/2" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
| 6-32 | 6-40 | 9/64" | 9/64" | Class 2B | Class 2B | 5/16" | 1/2" | ASTM A582 | Rockwell B80 | 000000000 | 0000 | 0000 |
| 6-40 | 8-32 | 11/64" | 11/64" | Class 2B | Class 2B | 5/16" | 5/8" | ASTM A582 | Rockwell B80 | 000000000 | 0000 | 0000 |
316 Stainless Steel | ||||||||||||
| 6-40 | 8-32 | 11/64" | 11/64" | Class 2B | Class 2B | 5/16" | 5/8" | ASTM A276 | Rockwell B83 | 000000000 | 0000 | 0000 |
Inch-to-Metric Female Hex Thread Adapters
Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench. Small adapters can also be used as standoffs, positioning and separating circuit boards and other components in assemblies.
18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, just like 18-8 stainless steel adapters, but unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and harsh chemicals.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Thread Fit | Hex | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | Pitch (B), mm | (A) | (B), mm | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | 1-9 | 10-Up | |
18-8 Stainless Steel | ||||||||||||||
| 6-40 | M4 | 0.7 | 9/64" | 4 | Class 2B | Class 6H | 11mm | 11mm | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 | 00000 |
| 6-40 | M5 | 0.8 | 9/64" | 5 | Class 2B | Class 6H | 11mm | 11mm | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 | 0000 |
316 Stainless Steel | ||||||||||||||
| 6-40 | M4 | 0.7 | 9/64" | 4 | Class 2B | Class 6H | 11mm | 11mm | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 | 0000 |
| 6-40 | M5 | 0.8 | 9/64" | 5 | Class 2B | Class 6H | 11mm | 11mm | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 | 0000 |
Inch-to-Metric Male Hex Thread Adapters
One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.
You can also use these adapters to change the gender of a mating part or increase or decrease its thread size. The small sizes work as standoffs, positioning and separating circuit boards and other components in assemblies.
18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, just like 18-8 stainless steel adapters, but unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and harsh chemicals.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Thread Fit | Hex | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | Pitch (B), mm | (A) | (B), mm | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | |||||||||||||
| 6-40 | M4 | 0.7 | 1/4" | 9.5 | Class 2A | Class 6g | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
| 6-40 | M5 | 0.5 | 1/4" | 9.5 | Class 2A | Class 6g | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| 6-40 | M5 | 0.8 | 1/4" | 9.5 | Class 2A | Class 6g | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
316 Stainless Steel | |||||||||||||
| 6-40 | M4 | 0.7 | 1/4" | 9.5 | Class 2A | Class 6g | 1/4" | 1/8" | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 |
| 6-40 | M5 | 0.8 | 1/4" | 9.5 | Class 2A | Class 6g | 1/4" | 1/8" | ASTM A276 | 75,000 | Rockwell B83 | 000000000 | 0000 |
Inch-to-Inch Male Hex Thread Adapters
Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection. You can also use these adapters to change the gender of a mating part from female to male, increase or decrease the thread size, or convert the threads from fine to coarse (and vice versa). The smaller adapters act as threaded standoffs, positioning and separating circuit boards and other components in assemblies.
Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Thread Fit | Hex | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | ||||||||||||
| 4-40 | 6-40 | 3/16" | 1/4" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
| 4-48 | 6-40 | 3/16" | 1/4" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| 6-32 | 6-40 | 1/4" | 1/4" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| 6-40 | 8-32 | 1/4" | 3/8" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
| 6-40 | 8-36 | 1/4" | 3/8" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
Rod Alignment Couplers
Increase cylinder life by fixing alignment problems between air or hydraulic cylinders and driven components. Couplers have a threaded end that moves to compensate for the angle of misalignment, reducing wear on cylinder bearings and seals. Couplers have a male and female end.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Body Material | OD | Lg. | Max. Pull Force, lbs. | Each | |
5° of Misalignment | ||||||
|---|---|---|---|---|---|---|
| 6-40 | Nickel-Plated Brass | 0.47" | 1.2" | 140 | 000000 | 000000 |
Corrosion-Resistant Extension Spring Stud Anchors
These stainless steel anchor studs offer excellent corrosion resistance. Attach an extension spring to a stud and then thread the stud into your part for a secure connection.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Min. Lg. | Lg. | Dia. | Hole Dia. | Material | Each | |
| 6-40 | 5/8" | 5/8" | 0.138" | 0.08" | 18-8 Stainless Steel | 000000000 | 00000 |
Extension Spring Stud Anchors
A black-oxide finish provides these steel anchors with mild corrosion resistance. Attach an extension spring to a stud and then thread the stud into your part for a secure connection.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Min. Lg. | Lg. | Dia. | Hole Dia. | Material | Each | |
| 6-40 | 3/8" | 5/8" | 0.138" | 0.08" | Black-Oxide Steel | 0000000 | 00000 |
Corrosion-Resistant Swiveling Extension Spring Stud Anchors
These stainless steel anchor studs offer excellent corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to a stud and then thread the stud into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Min. Lg. | Lg. | Dia. | Hole Dia. | Hex Size | Material | Each | |
| 6-40 | 5/8" | 5/8" | 1/8" | 0.08" | 0.035" | 18-8 Stainless Steel | 000000000 | 000000 |