Thread Locking Inserts | McMaster-Carr

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208 Products

About Threaded Inserts

Choose the right threaded insert for your application and learn how to install it securely.

Thread-Locking Threaded Inserts

With Loctite® adhesive already on the threads, these inserts won’t back out or vibrate loose. The adhesive reaches full strength after 72 hours. Unlike helical inserts, you can install them with a standard drill and tap. However, thread-locking inserts are difficult to remove and reuse.

After drilling and tapping your hole, install inserts with a wrench or an installation bit. To use a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into the hole. For slotted inserts, you can drive with a slotted screwdriver instead.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Thin Wall—Use these inserts near the edge of workpieces or wherever you only have space for a small hole. They're also lighter than standard and extra-thick wall inserts for applications with strict weight limits.

Extra-Thick Wall—Stronger than standard- and thin-wall inserts, use them to reduce the size of tapped holes or replace threads that have been drilled out.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these inserts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Inserts									Installation Tools		Inserts with Installation Tools
	Thread Size	For Tap Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Drive Style	Pkg. Qty.		Pkg.		Each	No. of Inserts Included		Each
Standard Wall







				Black Phosphate-Coated Steel

				4-40	10-32	0.250"	5/32"	0.156"	Slotted	10	90248A016	00000	94110A220	000000	—	———	0


				6-32	1/4"-20	0.281"	7 Ga.	0.201"	Slotted	10	90248A017	00000	94110A110	00000	—	———	0
				6-32	M6 x 1 mm	6.5 mm	5.1 mm	5.1 mm	Slotted	5	97224A110	0000	94110A110	00000	—	———	0
				8-32	5/16"-18	0.297"	F	0.257"	Slotted	10	90248A018	00000	94110A120	00000	10	95109A115	000000
				8-32	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	5	97224A130	0000	94110A120	00000	—	———	0
				10-24	3/8"-16	0.406"	5/16"	0.313"	Slotted	10	90248A021	00000	94110A130	00000	—	———	0
				10-24	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	5	97224A150	00000	94110A130	00000	—	———	0
				10-32	3/8"-16	0.406"	5/16"	0.313"	Slotted	10	90248A068	00000	94110A130	00000	10	95109A110	00000
				10-32	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	5	97224A170	00000	94110A130	00000	—	———	0
				1/4"-20	7/16"-14	0.438"	23/64"	0.359"	Slotted	10	90248A024	00000	94110A140	00000	10	95109A111	00000
				1/4"-20	7/16"-14	1"	23/64"	0.359"	Slotted	5	90248A025	00000	94110A140	00000	—	———	0


				1/4"-20	M10 x 1.5 mm	10.5 mm	8.6 mm	8.6 mm	Slotted	5	97224A190	00000	94110A140	00000	—	———	0
				1/4"-28	7/16"-14	0.438"	23/64"	0.359"	Slotted	10	90248A074	00000	94110A140	00000	—	———	0
				5/16"-18	1/2"-13	0.484"	27/64"	0.422"	Slotted	10	90248A027	00000	94110A150	00000	10	95109A112	00000
				5/16"-18	1/2"-13	1"	27/64"	0.422"	Slotted	5	90248A028	00000	94110A150	00000	—	———	0
				5/16"-18	M12 x 1.75 mm	12.5 mm	10.4 mm	10.4 mm	Slotted	5	97224A210	00000	94110A150	00000	—	———	0
				5/16"-24	1/2"-13	0.484"	27/64"	0.422"	Slotted	10	90248A078	00000	94110A150	00000	—	———	0
				3/8"-16	9/16"-12	0.516"	31/64"	0.484"	Slotted	10	90248A031	00000	94110A160	00000	10	95109A113	00000
				3/8"-16	9/16"-12	1"	31/64"	0.484"	Slotted	5	90248A032	00000	94110A160	00000	—	———	0
				3/8"-16	M16 x 2 mm	17 mm	14 mm	14 mm	Slotted	5	97224A230	00000	94110A160	00000	—	———	0
				3/8"-24	9/16"-12	0.516"	31/64"	0.484"	Slotted	10	90248A082	00000	94110A160	00000	—	———	0


				7/16"-14	5/8"-11	0.656"	17/32"	0.531"	Slotted	5	90248A034	00000	94110A170	00000	—	———	0
				7/16"-20	5/8"-11	0.656"	17/32"	0.531"	Slotted	5	90248A084	00000	94110A170	00000	—	———	0
				1/2"-13	3/4"-10	0.656"	21/32"	0.656"	Slotted	5	90248A038	00000	94110A180	00000	10	95109A114	000000
				1/2"-13	3/4"-10	1"	21/32"	0.656"	Slotted	5	90248A039	00000	94110A180	00000	—	———	0
				1/2"-13	M16 x 2 mm	17 mm	14 mm	14 mm	Slotted	5	97224A250	00000	94110A180	00000	—	———	0
				1/2"-20	3/4"-10	0.656"	21/32"	0.656"	Slotted	5	90248A086	00000	94110A180	00000	—	———	0
				9/16"-12	3/4"-10	0.656"	21/32"	0.656"	Slotted	5	90248A041	00000	94110A180	00000	—	———	0
				9/16"-18	3/4"-10	0.656"	21/32"	0.656"	Slotted	5	90248A090	00000	94110A180	00000	—	———	0
				5/8"-11	7/8"-9	0.688"	49/64"	0.766"	Slotted	5	90248A044	00000	94110A190	00000	—	———	0
				5/8"-11	7/8"-9	1.125"	49/64"	0.766"	Slotted	5	90248A045	00000	94110A190	00000	—	———	0


				5/8"-18	7/8"-9	0.688"	49/64"	0.766"	Slotted	5	90248A087	00000	94110A190	00000	—	———	0
				3/4"-10	1"-8	0.781"	7/8"	0.875"	Slotted	5	90248A051	00000	94110A210	00000	—	———	0
				3/4"-16	1"-8	0.781"	7/8"	0.875"	Slotted	5	90248A088	00000	94110A210	00000	—	———	0
				7/8"-9	1 1/4"-7	1.125"	1 7/64"	1.109"	Slotted	1	90248A052	00000	94110A230	00000	—	———	0
				7/8"-14	1 1/4"-7	1.125"	1 7/64"	1.109"	Slotted	1	90248A093	00000	94110A230	00000	—	———	0
				1"-8	1 3/8"-12	1.250"	1 9/32"	1.281"	Slotted	1	90248A054	00000	94110A240	00000	—	———	0
				1"-14	1 3/8"-12	1.250"	1 9/32"	1.281"	Slotted	1	90248A089	00000	94110A240	00000	—	———	0
				M3 x 0.5 mm	M6 x 1 mm	6.5 mm	5.1 mm	5.1 mm	Slotted	10	97084A190	00000	94110A220	00000	—	———	0
				M4 x 0.7 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	10	97084A200	00000	94110A120	00000	10	90025A110	00000
				M5 x 0.8 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	10	97084A220	00000	94110A120	00000	10	90025A111	00000


				M6 x 1 mm	3/8"-16	0.406"	5/16"	0.313"	Slotted	10	97084A110	00000	94110A140	00000	—	———	0
				M6 x 1 mm	M10 x 1.5 mm	10.5 mm	8.6 mm	8.6 mm	Slotted	5	97084A230	00000	94110A140	00000	10	90025A112	00000
				M8 x 1.25 mm	1/2"-13	0.484"	27/64"	0.422"	Slotted	10	97084A120	00000	94110A150	00000	—	———	0
				M8 x 1.25 mm	M12 x 1.75 mm	12.5 mm	10.4 mm	10.4 mm	Slotted	5	97084A240	00000	94110A150	00000	10	90025A113	00000
M10 x 1 mm				9/16"-18	0.453"	33/64"	0.516"	—	1	97084A311	0000	———	0	—	———	0
M10 x 1.25 mm	9/16"-12			0.516"	31/64"	0.484"	Slotted	10	97084A125	00000	94110A160	00000	—	———	0
M10 x 1.5 mm	9/16"-12			0.516"	31/64"	0.484"	Slotted	10	97084A130	00000	94110A160	00000	—	———	0
M10 x 1.5 mm	M16 x 2 mm			17 mm	14 mm	14 mm	Slotted	5	97084A250	00000	94110A160	00000	—	———	0
M12 x 1.25 mm	5/8"-18			0.453"	37/64"	0.578"	—	1	97084A312	0000	———	0	—	———	0
M12 x 1.25 mm	5/8"-18	0.703"		37/64"	0.578"	—	1	97084A313	0000	———	0	—	———	0
M12 x 1.75 mm	3/4"-10	0.656"	21/32"	0.656"	Slotted	5	97084A140	00000	94110A170	00000	—	———	0
M12 x 1.75 mm	M16 x 2 mm	17 mm	14 mm	14 mm	Slotted	5	97084A260	00000	94110A170	00000	—	———	0
M14 x 1.25 mm	3/4"-16	0.328"	11/16"	0.688"	—	5	90248A092	00000	———	0	—	———	0
M14 x 1.25 mm	3/4"-16	0.453"	11/16"	0.688"	—	5	90248A095	00000	———	0	—	———	0
M14 x 1.25 mm	3/4"-16	0.703"	11/16"	0.688"	—	1	97084A315	0000	———	0	—	———	0
M14 x 1.25 mm	M18 x 1.5 mm	11.5 mm	16.5 mm	16.5 mm	—	1	97084A314	0000	———	0	—	———	0
M14 x 2 mm	7/8"-9	0.688"	49/64"	0.766"	Slotted	5	97084A150	00000	94110A180	00000	—	———	0
M16 x 2 mm	1"-8	0.781"	7/8"	0.875"	Slotted	5	97084A160	00000	94110A190	00000	—	———	0
M16 x 2 mm	M24 x 3 mm	20 mm	21 mm	21 mm	Slotted	1	97084A270	0000	94110A190	00000	—	———	0
M18 x 1.5 mm	1"-12	0.453"	59/64"	0.922"	—	1	97084A316	0000	———	0	—	———	0
M20 x 2.5 mm	M36 x 4 mm	30 mm	33 mm	33 mm	Slotted	1	97084A310	00000	94110A250	00000	—	———	0
M24 x 3 mm	M36 x 4 mm	30 mm	33 mm	33 mm	Slotted	1	97084A317	00000	94110A250	00000	—	———	0



		18-8 Stainless Steel

		4-40	10-32	0.250"	5/32"	0.156"	Slotted	5	90247A007	00000	94110A220	00000	—	———	0


		6-32	1/4"-20	0.281"	7 Ga.	0.201"	Slotted	5	90247A008	00000	94110A110	00000	—	———	0
		8-32	5/16"-18	0.297"	F	0.257"	Slotted	5	90247A009	00000	94110A120	00000	—	———	0
		10-24	3/8"-16	0.406"	5/16"	0.313"	Slotted	5	90247A011	00000	94110A130	00000	—	———	0
		10-32	3/8"-16	0.406"	5/16"	0.313"	Slotted	5	90247A021	00000	94110A130	00000	—	———	0
		1/4"-20	7/16"-14	0.438"	U	0.368"	Slotted	5	90247A012	00000	94110A140	00000	—	———	0
		1/4"-28	7/16"-14	0.438"	U	0.368"	Slotted	5	90247A022	00000	94110A140	00000	—	———	0
		5/16"-18	1/2"-13	0.484"	27/64"	0.422"	Slotted	5	90247A013	00000	94110A150	00000	—	———	0
		5/16"-24	1/2"-13	0.484"	27/64"	0.422"	Slotted	5	90247A023	00000	94110A150	00000	—	———	0
		3/8"-16	9/16"-12	0.516"	31/64"	0.484"	Slotted	5	90247A014	00000	94110A160	00000	—	———	0
		3/8"-24	9/16"-12	0.516"	31/64"	0.484"	Slotted	5	90247A024	00000	94110A160	00000	—	———	0


		7/16"-14	5/8"-11	0.656"	17/32"	0.531"	Slotted	1	90247A015	0000	94110A170	00000	—	———	0
		7/16"-20	5/8"-11	0.656"	17/32"	0.531"	Slotted	1	90247A025	0000	94110A170	00000	—	———	0
		1/2"-13	3/4"-10	0.656"	21/32"	0.656"	Slotted	1	90247A016	0000	94110A180	00000	—	———	0
		1/2"-20	3/4"-10	0.656"	21/32"	0.656"	Slotted	1	90247A026	0000	94110A180	00000	—	———	0
		5/8"-11	7/8"-9	0.688"	49/64"	0.766"	Slotted	1	90247A017	0000	94110A190	00000	—	———	0
		3/4"-10	1"-8	0.781"	7/8"	0.875"	Slotted	1	90247A018	00000	94110A210	00000	—	———	0
		M3 x 0.5 mm	M6 x 1 mm	6.5 mm	5.1 mm	5.1 mm	Slotted	5	97120A190	00000	94110A220	00000	—	———	0
		M4 x 0.7 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	5	97120A200	00000	94110A120	00000	—	———	0
		M5 x 0.8 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	5	97120A220	00000	94110A120	00000	—	———	0
		M6 x 1 mm	3/8"-16	0.406"	5/16"	0.313"	Slotted	5	97120A110	00000	94110A140	00000	—	———	0


		M6 x 1 mm	M10 x 1.5 mm	10.5 mm	8.6 mm	8.6 mm	Slotted	5	97120A230	00000	94110A140	00000	—	———	0
		M8 x 1.25 mm	1/2"-13	0.484"	27/64"	0.422"	Slotted	1	97120A120	0000	94110A150	00000	—	———	0
		M8 x 1.25 mm	M12 x 1.75 mm	12.5 mm	10.4 mm	10.4 mm	Slotted	1	97120A240	0000	94110A150	00000	—	———	0
		M10 x 1.25 mm	9/16"-12	0.516"	31/64"	0.484"	Slotted	1	97120A125	0000	94110A160	00000	—	———	0
		M10 x 1.5 mm	9/16"-12	0.516"	31/64"	0.484"	Slotted	1	97120A130	0000	94110A160	00000	—	———	0
		M10 x 1.5 mm	M16 x 2 mm	17 mm	14 mm	14 mm	Slotted	1	97120A250	0000	94110A160	00000	—	———	0
		M12 x 1.75 mm	3/4"-10	0.656"	21/32"	0.656"	Slotted	1	97120A140	0000	94110A170	00000	—	———	0
		M12 x 1.75 mm	M16 x 2 mm	17 mm	14 mm	14 mm	Slotted	1	97120A260	0000	94110A170	00000	—	———	0
		M14 x 2 mm	7/8"-9	0.688"	49/64"	0.766"	Slotted	1	97120A150	0000	94110A180	00000	—	———	0
		M16 x 2 mm	1"-8	0.781"	7/8"	0.875"	Slotted	1	97120A160	0000	94110A190	00000	—	———	0


		M16 x 2 mm	M24 x 3 mm	20 mm	21 mm	21 mm	Slotted	1	97120A270	0000	94110A190	00000	—	———	0




				Highly Corrosion-Resistant 316 Stainless Steel

				4-40	10-32	0.250"	5/32"	0.156"	Slotted	1	90266A339	0000	94110A220	00000	—	———	0


				6-32	1/4"-20	0.281"	7 Ga.	0.201"	Slotted	1	90266A341	0000	94110A110	00000	—	———	0
				8-32	5/16"-18	0.297"	F	0.257"	Slotted	1	90266A338	0000	94110A120	00000	—	———	0
				10-24	3/8"-16	0.406"	5/16"	0.313"	Slotted	1	90266A340	0000	94110A130	00000	—	———	0
				10-32	3/8"-16	0.406"	5/16"	0.313"	Slotted	1	90266A342	0000	94110A130	00000	—	———	0
				1/4"-20	7/16"-14	0.438"	U	0.368"	Slotted	1	90266A346	0000	94110A140	00000	—	———	0
				5/16"-18	1/2"-13	0.484"	27/64"	0.422"	Slotted	1	90266A350	0000	94110A150	00000	—	———	0
				3/8"-16	9/16"-12	0.516"	31/64"	0.484"	Slotted	1	90266A354	0000	94110A160	00000	—	———	0
				1/2"-13	3/4"-10	0.656"	21/32"	0.656"	Slotted	1	90266A356	00000	94110A180	00000	—	———	0
				3/4"-10	1"-8	0.781"	7/8"	0.875"	Slotted	1	90266A343	00000	94110A210	00000	—	———	0
				M3 x 0.5 mm	M6 x 1 mm	6.5 mm	5.1 mm	5.1 mm	Slotted	1	96026A101	0000	94110A220	00000	—	———	0


M4 x 0.7 mm	M8 x 1.25 mm			7.5 mm	6.9 mm	6.9 mm	Slotted	1	96026A102	0000	94110A120	00000	—	———	0
M5 x 0.8 mm	M8 x 1.25 mm			7.5 mm	6.9 mm	6.9 mm	Slotted	1	96026A103	0000	94110A120	00000	—	———	0
M6 x 1 mm	M10 x 1.5 mm			10.5 mm	8.6 mm	8.6 mm	Slotted	1	96026A104	0000	94110A140	00000	—	———	0
M8 x 1.25 mm	M12 x 1.75 mm			12.5 mm	10.4 mm	10.4 mm	Slotted	1	96026A105	00000	94110A150	00000	—	———	0
M10 x 1.5 mm	M16 x 2 mm			17 mm	14 mm	14 mm	Slotted	1	96026A106	0000	94110A160	00000	—	———	0
M12 x 1.75 mm	M16 x 2 mm			17 mm	14 mm	14 mm	Slotted	1	96026A107	00000	94110A170	00000	—	———	0


Thin Wall







						Black Phosphate-Coated Steel

						10-24	5/16"-18	0.313"	I	0.272"	Slotted	10	90259A124	00000	94110A130	00000	—	———	0


						10-32	5/16"-18	0.313"	I	0.272"	Slotted	10	90259A129	00000	94110A130	00000	10	96015A110	00000
						1/4"-20	3/8"-16	0.375"	Q	0.332"	Slotted	10	90259A132	00000	94110A140	00000	10	96015A111	00000
						1/4"-28	3/8"-16	0.375"	Q	0.332"	Slotted	10	90259A136	00000	94110A140	00000	—	———	0
						5/16"-18	7/16"-14	0.438"	X	0.397"	Slotted	10	90259A139	00000	94110A150	00000	10	96015A112	00000
						5/16"-24	7/16"-14	0.438"	X	0.397"	Slotted	10	90259A141	00000	94110A150	00000	—	———	0
						3/8"-16	1/2"-13	0.500"	29/64"	0.453"	Slotted	10	90259A144	00000	94110A160	00000	10	96015A113	00000
						3/8"-24	1/2"-13	0.500"	29/64"	0.453"	Slotted	10	90259A147	00000	94110A160	00000	—	———	0
						7/16"-14	9/16"-12	0.563"	33/64"	0.516"	Slotted	5	90259A154	00000	94110A170	00000	—	———	0
						7/16"-20	9/16"-12	0.563"	33/64"	0.516"	Slotted	5	90259A158	00000	94110A170	00000	—	———	0
						1/2"-13	5/8"-11	0.625"	37/64"	0.578"	Slotted	5	90259A163	00000	94110A180	00000	10	96015A114	000000


						1/2"-20	5/8"-11	0.625"	37/64"	0.578"	Slotted	5	90259A169	00000	94110A180	00000	—	———	0
						M4 x 0.7 mm	5/16"-18	0.313"	I	0.272"	Slotted	5	90259A215	0000	94110A120	00000	—	———	0
						M5 x 0.8 mm	5/16"-18	0.313"	I	0.272"	Slotted	5	90259A218	0000	94110A130	00000	—	———	0
						M6 x 1 mm	3/8"-16	0.375"	Q	0.332"	Slotted	5	90259A222	00000	94110A140	00000	10	90025A115	00000
						M8 x 1.25 mm	7/16"-14	0.438"	X	0.397"	Slotted	5	90259A230	00000	94110A150	00000	—	———	0
						M10 x 1.5 mm	1/2"-13	0.500"	29/64"	0.453"	Slotted	1	90259A236	0000	94110A160	00000	—	———	0
						M12 x 1.75 mm	5/8"-11	0.625"	37/64"	0.578"	Slotted	1	90259A241	0000	94110A170	00000	—	———	0




								18-8 Stainless Steel

		6-32						12-28	0.280"	14 Ga.	0.182"	Slotted	5	94165A219	00000	94110A220	00000	—	———	0


		8-32	1/4"-28					0.290"	3 Ga.	0.213"	Slotted	5	94165A223	00000	94110A110	00000	—	———	0
		10-24	5/16"-24					0.313"	I	0.272"	Slotted	5	94165A227	00000	94110A120	00000	—	———	0
		10-32	5/16"-24					0.313"	I	0.272"	Slotted	5	94165A231	00000	94110A120	00000	—	———	0
		1/4"-20	3/8"-24					0.375"	Q	0.332"	Slotted	5	94165A235	00000	94110A130	00000	—	———	0
		1/4"-28	3/8"-24					0.375"	Q	0.332"	Slotted	5	94165A239	00000	94110A130	00000	—	———	0
		5/16"-18	7/16"-20					0.438"	25/64"	0.391"	Slotted	5	94165A243	00000	94110A140	00000	—	———	0
		5/16"-24	7/16"-20					0.438"	25/64"	0.391"	Slotted	5	94165A247	00000	94110A140	00000	—	———	0
		3/8"-16	1/2"-20					0.500"	29/64"	0.453"	Slotted	1	94165A251	0000	94110A150	00000	—	———	0
		3/8"-24	1/2"-20					0.500"	29/64"	0.453"	Slotted	1	94165A255	0000	94110A150	00000	—	———	0
		7/16"-14	9/16"-18					0.563"	33/64"	0.516"	Slotted	1	94165A259	0000	94110A160	00000	—	———	0


		7/16"-20	9/16"-18					0.563"	33/64"	0.516"	Slotted	1	94165A263	0000	94110A160	00000	—	———	0
		1/2"-13	5/8"-18					0.625"	37/64"	0.578"	Slotted	1	94165A267	0000	94110A170	00000	—	———	0
		1/2"-20	5/8"-18					0.625"	37/64"	0.578"	Slotted	1	94165A271	0000	94110A170	00000	—	———	0
		5/8"-11	3/4"-16					0.687"	11/16"	0.688"	Slotted	1	94165A275	0000	94110A190	00000	—	———	0
		5/8"-18	3/4"-16					0.687"	11/16"	0.688"	Slotted	1	94165A279	0000	94110A190	00000	—	———	0
		M4 x 0.7 mm	5/16"-24					0.313"	I	0.272"	Slotted	1	97120A280	0000	94110A120	00000	—	———	0
		M5 x 0.8 mm	5/16"-24					0.313"	I	0.272"	Slotted	1	97120A290	0000	94110A120	00000	—	———	0
		M6 x 1 mm	3/8"-24					0.375"	Q	0.332"	Slotted	1	97120A310	0000	94110A140	00000	—	———	0
		M8 x 1.25 mm	7/16"-20					0.438"	25/64"	0.391"	Slotted	1	97120A320	0000	94110A150	00000	—	———	0
		M10 x 1.5 mm	1/2"-20					0.500"	29/64"	0.453"	Slotted	1	97120A330	0000	94110A160	00000	—	———	0


M12 x 1.75 mm		5/8"-18	0.625"					37/64"	0.578"	Slotted	1	97120A340	0000	94110A170	00000	—	———	0


Extra-Thick Wall







				Black Phosphate-Coated Steel

				1/4"-20	1/2"-13			0.484"	27/64"	0.422"	Slotted	10	90246A024	00000	94110A140	00000	—	———	0


				5/16"-18	9/16"-12			0.516"	31/64"	0.484"	Slotted	10	90246A027	00000	94110A150	00000	—	———	0
				3/8"-16	5/8"-11			0.656"	17/32"	0.531"	Slotted	5	90246A031	0000	94110A160	00000	—	———	0
				1/2"-13	7/8"-9			0.688"	49/64"	0.766"	Slotted	5	90246A038	00000	———	0	—	———	0
				5/8"-11	1"-8			0.781"	7/8"	0.875"	Slotted	5	90246A044	00000	———	0	—	———	0




								18-8 Stainless Steel

								1/4"-20	1/2"-13	0.484"	27/64"	0.422"	Slotted	1	94165A480	0000	94110A140	00000	—	———	0


								5/16"-18	9/16"-12	0.516"	31/64"	0.484"	Slotted	1	94165A490	0000	94110A150	00000	—	———	0
								3/8"-16	5/8"-11	0.656"	17/32"	0.531"	Slotted	1	94165A510	0000	94110A160	00000	—	———	0

Installation Bits for Slotted-Drive Threaded Inserts

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

For Thread Size	Hex Shank Size		Each
4-40, 6-32, M3, M5	1/4"	94110A220	000000
6-32, 8-32, M3	1/4"	94110A110	00000
8-32, 10-24, 10-32, M4, M5	1/4"	94110A120	00000
10-24, 10-32, 1/4"-20, 1/4"-28, M5	1/4"	94110A130	00000
1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, M6	1/4"	94110A140	00000
5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, M8	1/4"	94110A150	00000
3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, M10	3/8"	94110A160	00000
7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M12	3/8"	94110A170	00000
1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, M14	3/8"	94110A180	00000
5/8"-11, 5/8"-18, M16	3/8"	94110A190	00000
3/4"-10, 3/4"-16	3/8"	94110A210	00000
7/8"-9, 7/8"-14	3/8"	94110A230	00000
1"-8, 1"-14	3/8"	94110A240	00000
M20, M24	3/8"	94110A250	00000

Thread-Locking Threaded Insert Assortments

These assortments include various sizes of thread-locking inserts, which won’t back out or loosen from vibration. Also known as E-Z Lok, they come with Loctite® adhesive already applied, and the adhesive reaches full strength after 72 hours. After drilling and tapping your hole, install inserts with a wrench or use an installation bit (not included). To use a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into the hole.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

				For Tap
	No. of Inserts Included	Includes	Thread Spacing	Thread Size	Thread Pitch	Drill Bit Size	For Maximum Hole Diameter	Drive Style		Each
Standard Wall







				Black Phosphate-Coated Steel

				22	1"-14 Thread × 1 1/4" Installed Lg. (2 Each) 1/2"-20 Thread × 0.656" Installed Lg. (6 Each) 3/4"-16 Thread × 0.781" Installed Lg. (7 Each) 5/8"-18 Thread × 0.688" Installed Lg. (7 Each)	Fine	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	90248A115	000000


				22	1"-8 Thread × 1 1/4" Installed Lg. (2 Each) 1/2"-13 Thread × 0.656" Installed Lg. (6 Each) 3/4"-10 Thread × 0.781" Installed Lg. (7 Each) 5/8"-11 Thread × 0.688" Installed Lg. (7 Each)	Coarse	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	90248A111	00000
				33	M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 17 mm Installed Lg. (10 Each) M12×1.75 mm Thread × 17 mm Installed Lg. (8 Each) M16×2 mm Thread × 20 mm Installed Lg. (5 Each)	Coarse	M12 M16 M16 M24	1.75 mm 2 mm 2 mm 3 mm	10.4 mm 14 mm 14 mm 21 mm	10.4 mm 14 mm 14 mm 21 mm	Slotted	97084A290	000000
				36	M6×1 mm Thread × 0.406" Installed Lg. (10 Each) M8×1.25 mm Thread × 0.484" Installed Lg. (10 Each) M10×1.5 mm Thread × 0.516" Installed Lg. (10 Each) M12×1.75 mm Thread × 0.656" Installed Lg. (6 Each)	Coarse	3/8"-16, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 27/64" 31/64" 21/32"	5/16" 27/64" 31/64" 21/32"	Slotted	97084A210	00000
				46	1/2"-13 Thread × 0.656" Installed Lg. (6 Each) 1/4"-20 Thread × 0.438" Installed Lg. (10 Each) 3/8"-16 Thread × 0.516" Installed Lg. (10 Each) 5/16"-18 Thread × 0.484" Installed Lg. (10 Each) 10-24 Thread × 0.406" Installed Lg. (10 Each)	Coarse	3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 23/64" 27/64" 31/64" 21/32"	5/16" 23/64" 27/64" 31/64" 21/32"	Slotted	90248A112	00000
				46	1/2"-20 Thread × 0.656" Installed Lg. (6 Each) 1/4"-28 Thread × 0.438" Installed Lg. (10 Each) 3/8"-24 Thread × 0.516" Installed Lg. (10 Each) 5/16"-24 Thread × 0.484" Installed Lg. (10 Each) 10-32 Thread × 0.406" Installed Lg. (10 Each)	Fine	3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 23/64" 27/64" 31/64" 21/32"	5/16" 23/64" 27/64" 31/64" 21/32"	Slotted	90248A114	00000
				50	M3×0.5 mm Thread × 6.5 mm Installed Lg. (10 Each) M4×0.7 mm Thread × 7.5 mm Installed Lg. (10 Each) M5×0.8 mm Thread × 7.5 mm Installed Lg. (10 Each) M6×1 mm Thread × 10.5 mm Installed Lg. (10 Each) M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each)	Coarse	M6 M8 M8 M10 M12	1 mm 1.25 mm 1.25 mm 1.5 mm 1.75 mm	5.1 mm 6.9 mm 6.9 mm 8.6 mm, 10.4 mm	5.1 mm 6.9 mm 6.9 mm 8.6 mm 10.4 mm	Slotted	97084A280	00000




						18-8 Stainless Steel

						33	M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 17 mm Installed Lg. (10 Each) M12×1.75 mm Thread × 17 mm Installed Lg. (8 Each) M16×2 mm Thread × 20 mm Installed Lg. (5 Each)	Coarse	M12 M16 M16 M24	1.75 mm 2 mm 2 mm 3 mm	10.4 mm 14 mm 14 mm 21 mm	10.4 mm 14 mm 14 mm 21 mm	Slotted	97120A035	000000


						36	M6×1 mm Thread × 0.406" Installed Lg. (10 Each) M8×1.25 mm Thread × 0.484" Installed Lg. (10 Each) M10×1.5 mm Thread × 0.516" Installed Lg. (10 Each) M12×1.75 mm Thread × 0.656" Installed Lg. (6 Each)	Coarse	3/8"-16, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 27/64" 31/64" 21/32"	5/16" 27/64" 31/64" 21/32"	Slotted	97120A033	000000
						46	1/2"-13 Thread × 0.656" Installed Lg. (6 Each) 1/4"-20 Thread × 0.438" Installed Lg. (10 Each) 3/8"-16 Thread × 0.516" Installed Lg. (10 Each) 5/16"-18 Thread × 0.484" Installed Lg. (10 Each) 10-24 Thread × 0.406" Installed Lg. (10 Each)	Coarse	3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 23/64" 27/64" 31/64" 21/32"	5/16" 23/64" 27/64" 31/64" 21/32"	Slotted	90247A031	000000
						46	1/2"-20 Thread × 0.656" Installed Lg. (6 Each) 1/4"-28 Thread × 0.438" Installed Lg. (10 Each) 3/8"-24 Thread × 0.516" Installed Lg. (10 Each) 5/16"-24 Thread × 0.484" Installed Lg. (10 Each) 10-32 Thread × 0.406" Installed Lg. (10 Each)	Fine	3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 3/4"-10	—	5/16" 23/64" 27/64" 31/64" 21/32"	5/16" 23/64" 27/64" 31/64" 21/32"	Slotted	90247A032	000000
						50	M3×0.5 mm Thread × 6.5 mm Installed Lg. (10 Each) M4×0.7 mm Thread × 7.5 mm Installed Lg. (10 Each) M5×0.8 mm Thread × 7.5 mm Installed Lg. (10 Each) M6×1 mm Thread × 10.5 mm Installed Lg. (10 Each) M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each)	Coarse	M6 M8 M8 M10 M12	1 mm 1.25 mm 1.25 mm 1.5 mm 1.75 mm	5.1 mm 6.9 mm 6.9 mm 8.6 mm, 10.4 mm	5.1 mm 6.9 mm 6.9 mm 8.6 mm 10.4 mm	Slotted	97120A034	000000

Thread-Locking Threaded Inserts with Installation Tools

What you need to add or repair threads quickly in parts under stress or vibration. These inserts come with a closed-end tap, a drill bit, and an installation bit. Also known as E-Z Lok, they have Loctite® adhesive already applied, and the adhesive reaches full strength after 72 hours.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

	Drill Bit Size	For Max. Hole Dia.	Drive Style	No. of Inserts Included		Each
Standard Wall







	Black Phosphate-Coated Steel

	8-32	5/16"-18	0.290"	F	0.257"	Slotted	10	95109A115	000000


	10-32	3/8"-16	0.406"	5/16"	0.313"	Slotted	10	95109A110	00000
	1/4"-20	7/16"-14	0.437"	23/64"	0.359"	Slotted	10	95109A111	00000
	5/16"-18	1/2"-13	0.484"	27/64"	0.422"	Slotted	10	95109A112	00000
	3/8"-16	9/16"-12	0.515"	31/64"	0.484"	Slotted	10	95109A113	00000
	1/2"-13	3/4"-10	0.656"	21/32"	0.656"	Slotted	10	95109A114	000000
	M4 x 0.7 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	10	90025A110	00000
	M5 x 0.8 mm	M8 x 1.25 mm	7.5 mm	6.9 mm	6.9 mm	Slotted	10	90025A111	00000
	M6 x 1 mm	M10 x 1.5 mm	10.5 mm	8.6 mm	8.6 mm	Slotted	10	90025A112	00000
	M8 x 1.25 mm	M12 x 1.75 mm	12.5 mm	10.4 mm	10.4 mm	Slotted	10	90025A113	00000


	Thin Wall







					Black Phosphate-Coated Steel

					10-32	5/16"-18	0.312"	I	0.272"	Slotted	10	96015A110	00000


					1/4"-20	3/8"-16	0.375"	Q	0.332"	Slotted	10	96015A111	00000
					5/16"-18	7/16"-14	0.437"	X	0.397"	Slotted	10	96015A112	00000
					3/8"-16	1/2"-13	0.500"	29/64"	0.453"	Slotted	10	96015A113	00000
					1/2"-13	5/8"-11	0.625"	37/64"	0.578"	Slotted	10	96015A114	000000
					M6 x 1 mm	3/8"-16	0.375"	Q	0.332"	Slotted	10	90025A115	00000

Screw-Locking Thread-Locking Threaded Inserts

Adhesive on both the internal and external threads keeps these inserts in place and holds screws tight. Also known as E-Z Lok, they use Loctite® adhesive that reaches full strength after 72 hours. Inserts have thick walls for strength and can be used to fill large holes with stripped threads.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

	Inserts								Installation Tools
	Thread Size	For Tap Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Drive Style		Each		Each
Standard Wall







				Black Phosphate-Coated Steel

				10-24	3/8"-16	0.406"	5/16"	0.313"	Slotted	96137A110	00000	94110A130	000000


				10-32	3/8"-16	0.406"	5/16"	0.313"	Slotted	96137A120	0000	94110A130	00000
				1/4"-20	7/16"-14	0.438"	23/64"	0.359"	Slotted	96137A130	0000	94110A140	00000
				5/16"-18	1/2"-13	0.484"	27/64"	0.422"	Slotted	96137A140	0000	94110A150	00000
				3/8"-16	9/16"-12	0.516"	31/64"	0.484"	Slotted	96137A150	0000	94110A160	00000
				1/2"-13	3/4"-10	0.656"	21/32"	0.656"	Slotted	96137A160	0000	94110A180	00000