MS 122161 Helical Inserts

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	Specifications Met Specifications Met	Show

Mil. Spec.

MS122-161

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Warning: Products have one, but not necessarily all, of the selected characteristics.

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

1/4"-20

	Thread Type Thread Type

UNC

	Material Material

Stainless Steel

	Helical Insert Style Helical Insert Style

With Prong

	Thread Direction Thread Direction

	Right Hand

	Installed Length Installed Length

0.5" to 0.999"

	For Minimum Material Thickness For Minimum Material Thickness

0.5" to 0.999"

	For Maximum Hole Diameter For Maximum Hole Diameter

0.25" to 0.499"

	Drill Bit Size Drill Bit Size

	For Tap Type For Tap Type

Helical

	Thread Spacing Thread Spacing

Coarse

	Passivation Passivation

Not Passivated

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Tensile Strength Tensile Strength

200,000 psi

	Finish Finish

Dry Film Lubricated

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How to Install Helical Inserts

About Helical Insert Length

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.

Inch

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
1/4"-20	1/2"	H	0.266"	MS122-161	10	000000000	00000	000000000	000000	000000000	000000	000000000	0000000	000000000	000000

Lubricated Stainless Steel Helical Inserts

A dry film keeps the screw from sticking or binding in these inserts during installation. Also known as Heli-Coil inserts, they 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.

Inch

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
1/4"-20	1/2"	H	0.266"	MIL-I-8846, MS122-161	1	000000000	00000	000000000	000000	000000000	000000	000000000	0000000	000000000	000000