Insert Blanks | McMaster-Carr

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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210 Products

About Threaded Inserts

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

Finish-Your-Own Key-Locking Threaded Inserts for Soft Metal

Tap the thread size you need into the solid body of these inserts. They’re a great choice when you need a custom combination of internal thread size and external diameter. Use them to repair or add new threads in soft metal, such as aluminum. They can also plug threaded holes without the hassle of welding. Keys on the inserts drive into material to prevent slipping and rotating in the hole.

To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.

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.

	Inserts								Installation Tools
	For Tap Thread Size	Installed Lg.	Max. Tapping Dia.	Drill Bit Size	For Max. Hole Dia.	No. of Locking Keys		Each		Each
Standard Profile







				Black Phosphate-Coated Steel

				5/16"-18	0.313"	3/16"	I	0.272"	2	93774A110	000000	93741A110	000000


				3/8"-16	0.313"	1/4"	Q	0.332"	2	93774A120	00000	93741A120	00000
				7/16"-14	0.375"	5/16"	X	0.397"	4	93774A130	00000	93741A130	00000
				1/2"-13	0.438"	3/8"	29/64"	0.453"	4	93774A140	00000	93741A140	000000
				9/16"-12	0.500"	7/16"	33/64"	0.516"	4	93774A150	00000	93741A150	000000
				5/8"-11	0.625"	1/2"	37/64"	0.578"	4	93774A160	00000	93741A160	000000
				3/4"-16	0.688"	9/16"	45/64"	0.703"	4	93774A170	00000	93741A170	000000
				7/8"-14	0.875"	5/8"	53/64"	0.828"	4	93774A180	00000	93741A180	000000
				1"-12	0.875"	5/8"	15/16"	0.936"	4	93774A190	00000	93741A190	000000
				1 1/8"-12	1.125"	3/4"	1 1/16"	1.063"	4	93774A210	00000	93741A210	000000
				1 1/4"-12	1.250"	7/8"	1 3/16"	1.188"	4	93774A220	00000	93741A220	000000


				1 3/8"-12	1.375"	1"	1 5/16"	1.313"	4	93774A230	00000	93741A230	000000
				M8 x 1.25 mm	8 mm	5 mm	6.9 mm	6.9 mm	2	93774A240	00000	93741A240	00000
				M10 x 1.25 mm	10 mm	6 mm	8.8 mm	8.8 mm	2	93774A250	00000	93741A250	00000
				M12 x 1.25 mm	12 mm	8 mm	10.8 mm	10.8 mm	4	93774A260	00000	93741A260	00000
				M14 x 1.5 mm	14 mm	10 mm	12.8 mm	12.8 mm	4	93774A270	00000	93741A270	000000
				M16 x 1.5 mm	16 mm	12 mm	14.75 mm	14.75 mm	4	93774A280	00000	93741A280	000000
				M18 x 1.5 mm	18 mm	12 mm	16.75 mm	16.75 mm	4	93774A290	00000	93741A290	000000
				M22 x 1.5 mm	22 mm	16 mm	20.5 mm	20.5 mm	4	93774A310	00000	93741A310	000000
				M30 x 2 mm	30 mm	20 mm	28 mm	28 mm	4	93774A320	00000	93741A320	000000




						18-8 Stainless Steel

						5/16"-18	0.313"	3/16"	I	0.272"	2	93543A110	00000	93741A110	00000


						3/8"-16	0.313"	1/4"	Q	0.332"	2	93543A120	00000	93741A120	00000
						7/16"-14	0.375"	5/16"	X	0.397"	4	93543A130	00000	93741A130	00000
						1/2"-13	0.438"	3/8"	29/64"	0.453"	4	93543A140	00000	93741A140	000000
						7/8"-14	0.875"	5/8"	53/64"	0.828"	4	93543A150	00000	93741A180	000000
						1 1/8"-12	1.125"	3/4"	1 1/16"	1.063"	4	93543A160	000000	93741A210	000000
						M8 x 1.25 mm	8 mm	5 mm	6.9 mm	6.9 mm	2	93543A170	00000	93741A240	00000
						M10 x 1.25 mm	10 mm	6 mm	8.8 mm	8.8 mm	2	93543A180	00000	93741A250	00000
						M12 x 1.25 mm	12 mm	8 mm	10.8 mm	10.8 mm	4	93543A190	00000	93741A260	00000
						M14 x 1.5 mm	14 mm	10 mm	12.8 mm	12.8 mm	4	93543A210	00000	93741A270	000000
						M16 x 1.5 mm	16 mm	12 mm	14.75 mm	14.75 mm	4	93543A220	00000	93741A280	000000


						M22 x 1.5 mm	22 mm	16 mm	20.5 mm	20.5 mm	4	93543A230	00000	93741A310	000000

Key-Locking Threaded Insert Blank Drivers

Hand thread an insert blank into a tapped hole before placing the tip of these tools on the insert. Strike the tool with a hammer to drive the keys into your material.

	Handle Style		Each
Standard (UN) Thread



	5/16"-18	Straight	93741A110	000000


	3/8"-16	Straight	93741A120	00000
	7/16"-14	Straight	93741A130	00000
	1/2"-13	Straight	93741A140	000000
	9/16"-12	Straight	93741A150	000000
	5/8"-11	Straight	93741A160	000000
	3/4"-16	Straight	93741A170	000000
	7/8"-14	Straight	93741A180	000000
	1"-12	Straight	93741A190	000000
	1 1/8"-12	Straight	93741A210	000000
	1 1/4"-12	Straight	93741A220	000000


	1 3/8"-12	Straight	93741A230	000000


	Metric Thread



			M8	Straight	93741A240	00000


			M10	Straight	93741A250	00000
			M12	Straight	93741A260	00000
			M14	Straight	93741A270	000000
			M16	Straight	93741A280	000000
			M18	Straight	93741A290	000000
			M22	Straight	93741A310	000000
			M30	Straight	93741A320	000000

Finish-Your-Own Washers

Punch a hole in these washers to create a custom inner diameter for uncommon screw sizes. Washers take the pressure off screws and nut to protect your mounting surface.

Stainless Steel About Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

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

Material Certificate—Washers include a report with a traceable lot number.

	OD	Thk.	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		0.375"	0.043" to 0.057"	—	50	93274A110	00000


		0.500"	0.043" to 0.057"	—	50	93274A120	00000
		0.625"	0.043" to 0.057"	—	50	93274A130	00000
		0.750"	0.043" to 0.057"	—	50	93274A140	00000
		0.875"	0.043" to 0.057"	—	25	93274A150	00000
		1.000"	0.043" to 0.057"	—	25	93274A160	00000
		1.125"	0.043" to 0.057"	—	10	93274A170	0000
		1.250"	0.043" to 0.057"	—	10	93274A180	00000
		1.375"	0.043" to 0.057"	—	10	93274A190	00000
		1.500"	0.043" to 0.057"	—	10	93274A210	00000
		1.625"	0.043" to 0.057"	—	10	93274A220	00000


		1.750"	0.043" to 0.057"	—	10	93274A230	00000
		1.875"	0.043" to 0.057"	—	5	93274A240	00000
		2.000"	0.043" to 0.057"	—	5	93274A250	00000
		6.0 mm	1.4 mm to 1.8 mm	—	100	93274A260	00000
		7.0 mm	1.4 mm to 1.8 mm	—	50	93274A270	0000
		8.0 mm	1.4 mm to 1.8 mm	—	50	93274A280	0000
		9.0 mm	1.4 mm to 1.8 mm	—	50	93274A290	00000
		10.0 mm	1.4 mm to 1.8 mm	—	50	93274A310	00000
		11.0 mm	1.4 mm to 1.8 mm	Material Certificate	50	93274A320	00000
		12.0 mm	1.4 mm to 1.8 mm	—	50	93274A330	00000


		13.0 mm	1.4 mm to 1.8 mm	—	50	93274A340	00000
		14.0 mm	1.4 mm to 1.8 mm	—	50	93274A350	00000
		15.0 mm	1.4 mm to 1.8 mm	—	50	93274A360	00000
		16.0 mm	1.4 mm to 1.8 mm	—	50	93274A370	00000
		17.0 mm	1.4 mm to 1.8 mm	—	50	93274A380	00000
		18.0 mm	1.4 mm to 1.8 mm	—	25	93274A390	0000
		19.0 mm	1.4 mm to 1.8 mm	Material Certificate	25	93274A410	00000
		20.0 mm	1.4 mm to 1.8 mm	—	25	93274A420	00000
		21.0 mm	1.4 mm to 1.8 mm	—	25	93274A430	00000
		22.0 mm	1.4 mm to 1.8 mm	—	25	93274A440	00000


		23.0 mm	1.4 mm to 1.8 mm	—	25	93274A450	00000
		24.0 mm	1.4 mm to 1.8 mm	—	10	93274A460	0000


		Highly Corrosion-Resistant 316 Stainless Steel



				0.375"	0.043" to 0.057"	—	50	93274A470	00000


				0.500"	0.043" to 0.057"	—	50	93274A480	00000
				0.625"	0.043" to 0.057"	—	50	93274A490	00000
				0.750"	0.043" to 0.057"	—	25	93274A510	00000
				0.875"	0.043" to 0.057"	—	25	93274A520	00000
				1.000"	0.043" to 0.057"	—	10	93274A530	00000
				1.125"	0.043" to 0.057"	—	10	93274A540	00000
				1.250"	0.043" to 0.057"	—	10	93274A550	00000
				1.375"	0.043" to 0.057"	—	10	93274A560	00000
				1.500"	0.043" to 0.057"	—	10	93274A570	00000
				1.625"	0.043" to 0.057"	—	5	93274A580	00000


1.750"	0.043" to 0.057"			—	5	93274A590	00000
1.875"	0.043" to 0.057"			—	5	93274A610	00000
2.000"	0.043" to 0.057"			—	5	93274A620	00000
6.0 mm	1.4 mm to 1.8 mm			Material Certificate	100	93274A630	00000
7.0 mm	1.4 mm to 1.8 mm			—	50	93274A640	00000
8.0 mm	1.4 mm to 1.8 mm			—	50	93274A650	00000
9.0 mm	1.4 mm to 1.8 mm			—	50	93274A660	00000
10.0 mm	1.4 mm to 1.8 mm			—	50	93274A670	00000
11.0 mm	1.4 mm to 1.8 mm			Material Certificate	50	93274A680	00000
12.0 mm	1.4 mm to 1.8 mm			—	50	93274A690	00000


13.0 mm	1.4 mm to 1.8 mm			Material Certificate	50	93274A710	00000
14.0 mm	1.4 mm to 1.8 mm			—	50	93274A720	00000
15.0 mm	1.4 mm to 1.8 mm			—	50	93274A730	00000
16.0 mm	1.4 mm to 1.8 mm			—	50	93274A740	00000
17.0 mm	1.4 mm to 1.8 mm			—	25	93274A750	00000
18.0 mm	1.4 mm to 1.8 mm			—	25	93274A760	00000
19.0 mm	1.4 mm to 1.8 mm			—	25	93274A770	00000
20.0 mm	1.4 mm to 1.8 mm			—	25	93274A780	00000
21.0 mm	1.4 mm to 1.8 mm			—	25	93274A790	00000
22.0 mm	1.4 mm to 1.8 mm			Material Certificate	25	93274A810	00000


23.0 mm	1.4 mm to 1.8 mm			—	10	93274A820	00000
24.0 mm	1.4 mm to 1.8 mm			—	10	93274A830	00000

Grind-Your-Own Lathe Tool Blanks

Grind these hardened steel blanks to the size and shape you need.

Square Shank

T15 High-Speed Tool Steel—T15 high-speed tool steel has excellent wear resistance and good heat resistance for use on all metal and plastic.

M2 High-Speed Tool Steel—M2 high-speed tool steel has good wear and heat resistance for use on steel, aluminum, and brass.

M42 High-Speed Tool Steel—M42 high-speed tool steel has excellent heat resistance for use on stainless steel and nickel.

M48 High-Speed Tool Steel—M48 high-speed tool steel has the highest heat resistance of any blanks we offer for use on titanium.

Shank					T15 High-Speed Tool Steel		M2 High-Speed Tool Steel		M42 High-Speed Tool Steel		M48 High-Speed Tool Steel
Wd.	Ht.	Overall Lg.	End Shape	Bevel Angle		Each		Each		Each		Each
1/8"	1/8"	2 1/2"	Bevel	10°	3205A59	000000	3200A19	000000	3363A11	000000	3205A78	000000
3/16"	3/16"	2 1/2"	Bevel	10°	3205A61	00000	3200A21	00000	3363A8	00000	3205A79	00000
1/4"	1/4"	2 1/2"	Bevel	10°	3205A62	00000	3200A22	00000	3363A1	00000	3205A71	00000
5/16"	5/16"	2 1/2"	Bevel	10°	3205A63	00000	3200A23	00000	3363A2	00000	3205A72	00000
3/8"	3/8"	3"	Bevel	10°	3205A64	00000	3200A24	00000	3363A3	00000	3205A73	00000
7/16"	7/16"	3 1/2"	Bevel	10°	3205A65	00000	3200A25	00000	3363A4	00000	3205A74	00000
1/2"	1/2"	4"	Bevel	10°	3205A66	00000	3200A26	00000	3363A5	00000	3205A75	00000
5/8"	5/8"	4 1/2"	Bevel	10°	3205A67	00000	3200A27	00000	3363A6	00000	3205A76	000000
3/4"	3/4"	5"	Bevel	10°	3205A68	000000	3200A28	00000	3363A7	00000	3205A77	000000
7/8"	7/8"	6"	Bevel	10°	3205A69	000000	3200A29	000000	3363A9	000000	———	0
1"	1"	7"	Bevel	10°	3205A58	000000	3200A31	000000	3363A12	000000	———	0

Round Shank

M2 High-Speed Tool Steel—M2 high-speed tool steel has good wear and heat resistance for use on steel, aluminum, and brass.

		M2 High-Speed Tool Steel
Shank Dia.	Overall Lg.		Each
5/32"	3 1/8"	32435A51	00000
3/16"	3 1/2"	32435A52	0000

Rectangular Shank

M35 High-Speed Tool Steel—M35 high-speed tool steel has good wear resistance and excellent heat resistance for use on tough materials such as stainless steel and high-temperature alloys.

Shank					M35 High-Speed Tool Steel
Wd.	Ht.	Overall Lg.	End Shape	Bevel Angle		Each
1/4"	3/4"	5"	Bevel	10°	3205A111	000000
1/4"	1"	6"	Bevel	10°	3205A112	00000
3/8"	1/2"	6"	Bevel	20°	3205A113	00000
3/8"	5/8"	5"	Bevel	13°	3205A114	00000

T-Slot Nut Blanks

Drill and tap these blank T-slot nuts to whatever thread size you need. They slide into T-slot tracks on machine tool tables to secure clamps and workpieces. You can also use them to space and align components.

Inch

		Base
	For Slot Wd.	Lg.	Wd.	Ht.	Overall Ht.		Each
Steel



		5/16"	9/16"	9/16"	3/16"	1/4"	97817A111	00000


		3/8"	9/16"	9/16"	15/64"	3/8"	97817A121	0000
		3/8"	7/8"	5/8"	1/4"	3/8"	97817A122	0000
		7/16"	7/8"	11/16"	7/32"	1/2"	97817A131	0000
		7/16"	1"	3/4"	7/32"	1/2"	97817A132	0000
		1/2"	7/8"	3/4"	7/32"	3/8"	97817A141	0000
		1/2"	7/8"	7/8"	9/32"	1/2"	97817A142	0000
		9/16"	1 1/8"	7/8"	11/32"	5/8"	97817A151	0000
		5/8"	1"	1"	3/8"	5/8"	97817A162	0000
		5/8"	1 1/8"	1"	11/32"	5/8"	97817A161	0000
		5/8"	1 1/8"	1 1/8"	3/8"	3/4"	97817A163	0000


		5/8"	1 3/16"	1 3/16"	7/16"	7/8"	97817A164	00000
		11/16"	1 1/8"	1 1/8"	13/32"	3/4"	97817A171	0000
		11/16"	1 1/4"	1 1/8"	7/16"	3/4"	97817A172	0000
		3/4"	1 1/8"	1 1/4"	1/2"	3/4"	97817A182	00000
		3/4"	1 1/4"	1 1/4"	15/32"	3/4"	97817A181	0000
		13/16"	1 1/2"	1 1/4"	17/32"	1"	97817A191	00000
		13/16"	1 1/2"	1 1/4"	9/16"	1"	97817A192	0000
		13/16"	1 1/2"	1 3/8"	9/16"	1"	97817A193	00000
		7/8"	1 1/2"	1 1/2"	9/16"	1"	97817A211	0000
		7/8"	1 1/2"	1 1/2"	5/8"	1"	97817A212	00000


		1"	1 1/2"	1 1/2"	3/4"	1 1/4"	97817A221	00000
		1"	1 1/2"	1 3/4"	3/4"	1 1/2"	97817A222	00000
		1"	1 3/4"	1 5/8"	5/8"	1"	97817A224	0000
		1"	1 3/4"	1 3/4"	3/4"	1 1/2"	97817A223	00000
		1 1/16"	1 1/2"	1 3/4"	3/4"	1 1/2"	97817A232	00000
		1 1/16"	2"	1 5/8"	11/16"	1 1/8"	97817A231	00000
		1 1/8"	2"	1 3/4"	3/4"	1 1/2"	97817A241	00000
		1 1/4"	2"	2"	7/8"	1 1/4"	97817A251	00000
		1 5/16"	2"	2"	15/16"	1 1/4"	97817A261	00000
		1 3/8"	2 1/2"	2 1/2"	1 1/8"	1 3/4"	97817A271	00000

Metric

DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.

		Base, mm
	For Slot Wd., mm	Lg.	Wd.	Ht.	Overall Ht., mm	Specs. Met		Each
Steel



		5	9	9	3	6.5	DIN 508	97817A611	00000


		6	10	10	4	8	DIN 508	97817A622	0000
		8	13	13	6	10	DIN 508	97817A631	0000
		10	15	15	6	12	DIN 508	97817A642	0000
		12	18	18	7	14	DIN 508	97817A651	0000
		14	22	22	8	16	DIN 508	97817A661	0000
		16	25	25	9	18	DIN 508	97817A672	0000
		18	28	28	10	20	DIN 508	97817A682	0000
		20	32	32	12	24	DIN 508	97817A692	0000
		22	35	35	14	28	DIN 508	97817A712	0000
		24	40	40	16	32	DIN 508	97817A722	00000


		28	44	44	18	36	DIN 508	97817A732	00000
		36	54	54	22	44	DIN 508	97817A742	00000