How to Install Helical Inserts
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About Helical Insert Length
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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. 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 | ||||||||||||||
4-48 | 4-40 | 3/16" | 7/32" | Male | Female | Class 2A | Class 2B | 1/4" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
4-48 | 6-32 | 3/16" | 1/4" | Male | Female | Class 2A | Class 2B | 1/4" | 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 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 | 4-48 | 1/8" | 1/8" | Class 2B | Class 2B | 5/16" | 7/16" | ASTM A582 | Rockwell B80 | 000000000 | 00000 | 00000 |
4-48 | 6-32 | 9/64" | 9/64" | Class 2B | Class 2B | 5/16" | 1/2" | ASTM A582 | Rockwell B80 | 000000000 | 0000 | 0000 |
316 Stainless Steel | ||||||||||||
4-48 | 6-32 | 9/64" | 9/64" | Class 2B | Class 2B | 5/16" | 1/2" | ASTM A276 | Rockwell B83 | 000000000 | 0000 | 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 | ||||||||||||
2-56 | 4-48 | 5/32" | 3/16" | Class 2A | Class 2A | 3/16" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 00000 |
4-40 | 4-48 | 3/16" | 3/16" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
4-48 | 6-32 | 3/16" | 1/4" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
4-48 | 6-40 | 3/16" | 1/4" | Class 2A | Class 2A | 1/4" | 1/8" | ASTM A582 | 85,000 | Rockwell B80 | 000000000 | 0000 |
Stainless Steel Helical Inserts
Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||
18-8 Stainless Steel—Right-Hand Threaded | |||||||||||||||
4-48 | 0.112" | No. 31 | 0.12" | MS124-671 | 10 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
4-48 | 0.168" | No. 31 | 0.12" | MS124-711 | 10 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
Stainless Steel Screw-Locking Helical Inserts
A distorted thread grips the screw to resist loosening. Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||
18-8 Stainless Steel | |||||||||||||||
4-48 | 0.112" | No. 31 | 0.12" | MS21209F0410, NASM21209 | 10 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
4-48 | 0.168" | No. 31 | 0.12" | MS21209F0415, NASM21209 | 10 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |