3M Threadlockers | McMaster-Carr

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	Container Type Container Type


Bottle	One-Time-Use Capsule

Strip

	Color Color

	Blue		Red
	Purple		White

	Locking Strength Locking Strength

Medium

High

Low

	For Use On For Use On

	Removal Method Removal Method

Hand Tool

Hand Tool and Heat

Heat

	Manufacturer Model Number Manufacturer Model Number

	Type Type

Threadlocker

Thread Sealant

	Breakaway Torque Breakaway Torque

	Container Size Container Size

	Consistency Consistency

Thin Liquid

Thick Liquid

	For Maximum Thread Diameter For Maximum Thread Diameter

1/4"

3/4"

1 1/2"

	Cure Type Cure Type

Anaerobic

	Maximum Temperature Maximum Temperature

Less than 250° F

250° to 399° F

400° to 499° F

	Minimum Temperature Minimum Temperature

-400° F or less

-249° to -60° F

Greater than -50° F

	Viscosity Viscosity

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

DFARS Specialty Metals
COTS-Exempt

	Reaches Full Strength Reaches Full Strength

24 hrs.

	Begins to Harden Begins to Harden

20 min.

30 min.

	Clarity Clarity

Opaque

	Formulation Formulation

Acrylic

	Mixing Required Mixing Required

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

RoHS Compliant

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19 Products

About Structural Adhesives

About Sealant Flexibility

Prevent threaded fasteners from loosening due to shock and vibration. These threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked. Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes; and cadmium and zinc coatings.

Threadlockers with medium locking strength require a hand tool to unthread.

Threadlockers with high locking strength require both heat and a hand tool to unthread.

TL62 bonds oily parts.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color		Each
Medium Locking Strength
3M Scotch-Weld Threadlockers
TL42	0.03	One-Time-Use Capsule	20 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	1,200	140	Blue	000000000	00000
TL42	0.34	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	1,200	140	Blue	000000000	00000
TL42	1.69	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	1,200	140	Blue	000000000	00000
TL42	8.45	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	1,200	140	Blue	000000000	000000
High Locking Strength
3M Scotch-Weld Threadlockers
TL62	1.69	Bottle	20 min.	24 hrs.	-65° to 300°	1"	Thick Liquid	1,600	140	Red	000000000	00000
TL62	8.45	Bottle	20 min.	24 hrs.	-65° to 300°	1"	Thick Liquid	1,600	140	Red	000000000	000000
TL71	0.03	One-Time-Use Capsule	20 min.	24 hrs.	-65° to 300°	1"	Thin Liquid	500	225	Red	000000000	0000
TL71	0.34	Bottle	20 min.	24 hrs.	-65° to 300°	1"	Thin Liquid	500	225	Red	000000000	00000
TL71	1.69	Bottle	20 min.	24 hrs.	-65° to 300°	1"	Thin Liquid	500	225	Red	000000000	00000
TL71	8.45	Bottle	20 min.	24 hrs.	-65° to 300°	1"	Thin Liquid	500	225	Red	000000000	000000

Heavy Duty Threadlockers

To withstand demanding, high-vibration applications such as motor and pump housings, these threadlockers have high breakaway torque. They begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes, and cadmium and zinc coatings.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color		Each
High Locking Strength
3M Threadlockers
TL77	1.69 fl. oz.	Bottle	30 min.	24 hrs.	-65° to 300°	1 1/2"	Thick Liquid	7,000	290	Red	000000000	000000

Adjustable Threadlockers

These threadlockers give a secure hold, but can be easily adjusted with hand tools. They can be removed without damaging countersunk fasteners, set screws, and other small fasteners. These threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color		Each
Low Locking Strength
3M Scotch-Weld Threadlockers
TL22	0.34	Bottle	20 min.	24 hrs.	-65° to 300°	1/4"	Thin Liquid	1,200	95	Purple	000000000	000000
TL22	1.69	Bottle	20 min.	24 hrs.	-65° to 300°	1/4"	Thin Liquid	1,200	95	Purple	000000000	00000

Thread Sealant Tape

Made of PTFE, this tape has a slippery surface that keeps threads from binding to make parts easy to assemble.

			Max. Pressure, psi
Mfr. Model No.	Wd.	Lg., yd.	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Color		Each
3M PTFE
0.003" Thick.
547	1/4"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	000000
547	3/8"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	00000
547	1/2"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	00000
547	3/4"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	00000
547	1"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	00000

High-Density Thread Sealant Tape

This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.

				Max. Pressure, psi
Mfr. Model No.	Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Color		Each
3M PTFE
0.003" Thick.
48	1/2"	7	1.3	Not Rated	Not Rated	-450° to 400°	6"	White	0000000	000000