Threadlockers | McMaster-Carr

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Reaches Full Strength

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100 in·lbf to 199 in·lbf

200 in·lbf to 249 in·lbf

250 in·lbf to 299 in·lbf

300 in·lbf or greater

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622 Products

Threadlockers

Flow easily into threads to cover fasteners evenly

118 products

Reusable Threadlockers

No need to apply every time you remove and reinstall fasteners

3 products

Threadlockers for Plastic Fasteners

Won’t weaken plastic fasteners like other threadlockers can

1 product

Threadlockers for Drinking Water

Meet NSF/ANSI 61 for securing fasteners in drinking water systems

3 products

Paste Threadlockers

No drips, even from parts installed vertically or overhead

4 products

Wicking Threadlockers

Secure fasteners that are already installed

9 products

Extreme-Temperature Threadlockers

Flow easily into threads to cover fasteners evenly

3 products

High-Temperature Threadlockers

Keep fasteners joined at temperatures as high as 450° F

13 products

Tape Threadlockers

Wrap around fasteners with no mess

1 product

Gel Threadlockers

Cling to fasteners for slower flow and less mess than liquids

3 products

Lubricating Threadlockers

Reduce friction to protect threads and ease installation

1 product

High-Temperature Paste Threadlockers

Keep fasteners joined at temperatures as high as 650° F
No drips, even from parts installed vertically or overhead

2 products

Quick-Set Threadlockers

Harden for use within an hour, no primer required

3 products

High-Temperature Wicking Threadlockers

Keep fasteners joined at temperatures as high as 450° F
Secure fasteners that are already installed

1 product

High-Purity Threadlockers

Create the best bond with reactive metals, such as titanium

1 product

Other Products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

179 products

Retaining Compounds

Fill gaps to bond shafts, bearings, press-fit assemblies, and other cylindrical metal parts

80 products

Instant-Bond Adhesives

Also known as super glue, these adhesives create strong bonds in under 90 seconds

170 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

13 products

Threadlocker and Retaining Compound Dispensers

Screw onto bottles of threadlocker or retaining compound to control the flow and reduce waste

2 products

Electrical Insulating Adhesives

Secure hardware on circuit boards while insulating current

12 products