1"-14 Reducers | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

1"-14

	Thread Size Thread Size	Hide

	Thread Type Thread Type

UNF

UNS

	Threaded Insert Type Threaded Insert Type


Thread Locking	Key Locking

Helical

	Material Material

Stainless Steel

Steel

	For Tap Thread Size For Tap Thread Size

	Installed Length Installed Length

0.5" to 0.999"

1" to 1.999"

	Nut Type Nut Type

	Socket Head

	Drill Bit Size Drill Bit Size

	Thread Direction Thread Direction

	Right Hand

	For Use In For Use In

Metal

	Thread Spacing Thread Spacing

Fine

	For Maximum Hole Diameter For Maximum Hole Diameter

0.5" to 0.999"

1" or greater

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

RoHS Compliant

RoHS Compliant with
Exemptions

	End Type End Type

Open

	Tensile Strength Tensile Strength

60,000 psi

200,000 psi

Not Rated

	For Minimum Material Thickness For Minimum Material Thickness

0.5" to 0.999"

1" to 1.999"

	For Tap Type For Tap Type

Standard (UN)

Helical

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Passivation Passivation

Not Passivated

	Helical Insert Style Helical Insert Style

With Prong

	Thread Fit Thread Fit

Class 2B

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

REACH Compliant

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18 Products

About Nuts, Materials, and Finishes

How to Install Key-Locking Inserts

How to Install Helical Inserts

About Helical Insert Length

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.

Inch

Installation Bit

Inserts
	For Tap								Installation Bits
Thread Size	Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Drive Style	Pkg. Qty.		Pkg.		Each
Black-Phosphate Steel with Thick Wall
1"-14	1 3/8"-12	1 1/4"	1 9/32"	1 9/32"	Slotted	1	000000000	00000	000000000	000000

Easy-to-Install Thread-Locking Insert Assortments

These assortments include various sizes of thread-locking inserts. Also known as E-Z Lok, they use Loctite® adhesive to keep them in place. The adhesive reaches full strength after 72 hours. All inserts have thick walls for strength and can be used to fill a large hole.

Black-phosphate steel inserts are mildly corrosion resistant.

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.	Drive Style		Each
Inch Assortments
Black-Phosphate Steel
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)	22	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	000000000	000000

Installation Bits

For fast installation, use these installation bits with power drills and drill presses.

For Thread Size	Hex Shank Size		Each
1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, M14	3/8"	000000000	000000
5/8"-11, 5/8"-18, M16	3/8"	000000000	00000
3/4"-10, 3/4"-16	3/8"	000000000	00000
1"-8, 1"-14	3/8"	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.

For technical drawings and 3-D models, click on a part number.

Inch

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
1"-14	1 3/8"-12	1 3/8"	1 5/16"	1 5/16"	4	000000000	000000	000000	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.

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.

Inch

Black-Phosphate Steel with Thick Wall
Thread Size	For Tap Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	No. of Locking Keys	No. of Inserts Included		Each
1"-14	1 3/8"-12	1 3/8"	1 5/16"	1 5/16"	4	2	000000000	000000

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.

Inch

Inserts								Through-Hole Taps		Closed-End Hole Taps		Installation Tools
Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Specifications Met	Pkg. Qty.		Pkg.		Each		Each		Each
18-8 Stainless Steel—Right-Hand Threaded
1"-14	1"	1 1/32"	1 1/32"	MS124-665	1	000000000	000000	000000000	0000000	000000000	0000000	000000000	0000000
1"-14	1 1/2"	1 1/32"	1 1/32"	MS124-705	1	000000000	00000	000000000	000000	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.

Inch

Inserts							Through-Hole Taps		Closed-End Hole Taps		Installation Tools
Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Pkg. Qty.		Pkg.		Each		Each		Each
18-8 Stainless Steel
1"-14	1"	1 1/32"	1 1/32"	1	000000000	00000	000000000	0000000	000000000	0000000	000000000	0000000
1"-14	1 1/2"	1 1/32"	1 1/32"	1	000000000	00000	000000000	000000	000000000	000000	000000000	000000

Helical Inserts with Installation Tools

Shown with Five Inserts and Drill Bit

Inserts come with a through-hole tap and installation tool. 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.

Inch

18-8 Stainless Steel—Right-Hand Threaded
Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	No. of Inserts Included	Includes		Each
1"-14	1 1/2"	1 1/64"	1 1/64"	6	Drill Bit, Through-Hole Tap, Installation Tool	000000000	0000000

Alloy 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.

For technical drawings and 3-D models, click on a part number.

Alloy Steel
Thread Size	OD	Ht.	Threading	Thread Dp.	For Hole Dia.	Hex Key Size		Each
1"-14	1.53"	1.52"	Partially Threaded	0.81"	1.606"	1"	000000000	000000