S41600 Stainless Steel | McMaster-Carr

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About Stainless Steel

Compare over 25 types of stainless steel to find the right material for you—all with material certificates for traceability.

Machinable 416 Stainless Steel Rods

Drill, mill, and turn at high speeds without clogging your cutting tools. Alloyed with sulfur, 416 is the easiest type of stainless steel to machine. A good choice for gears, screws, and shafts, it won't wear down when it grinds against other metal parts. It also maintains its corrosion resistance in temperatures as hot as 1200° F. However, it's not as corrosion resistant as other types of stainless steel, such as 304 and 17-4 PH.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Fabrication	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1/2 ft. Long	1 ft. Long	2 ft. Long	3 ft. Long	6 ft. Long
1/8"	-0.001" to 0.001"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K42	00000	00000	00000	00000	00000
5/32"	-0.001" to 0.001"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K44	0000	0000	0000	0000	00000
3/16"	-0.001" to 0.001"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K46	0000	0000	0000	0000	00000
7/32"	-0.001" to 0.001"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K48	0000	0000	0000	0000	00000
1/4"	-0.001" to 0.001"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K52	0000	0000	0000	0000	00000
5/16"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K54	0000	0000	0000	00000	00000
3/8"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K56	0000	0000	0000	00000	00000
7/16"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K93	0000	0000	00000	00000	00000
1/2"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K94	0000	0000	00000	00000	00000
9/16"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K954	0000	0000	00000	00000	00000
5/8"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K96	0000	00000	00000	00000	00000
11/16"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K97	0000	00000	00000	00000	00000
3/4"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K98	0000	00000	00000	00000	00000
13/16"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K99	00000	00000	00000	00000	00000
7/8"	-0.002" to 0.002"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K21	00000	00000	00000	00000	00000
1"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K23	00000	00000	00000	00000	000000
1 1/16"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K24	00000	00000	00000	00000	000000
1 1/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K25	00000	00000	00000	00000	000000
1 3/16"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K26	00000	00000	00000	00000	000000
1 1/4"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K27	00000	00000	00000	00000	000000
1 5/16"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K28	00000	00000	00000	000000	000000
1 3/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K29	00000	00000	00000	000000	000000
1 7/16"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K31	00000	00000	000000	000000	000000
1 1/2"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K32	00000	00000	000000	000000	000000
1 9/16"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K33	00000	00000	000000	000000	000000
1 5/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K34	00000	00000	000000	000000	000000
1 3/4"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K36	00000	00000	000000	000000	000000
1 7/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K38	00000	00000	000000	000000	000000
2"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K72	00000	00000	000000	000000	000000
2 1/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K73	00000	000000	000000	000000	000000
2 1/4"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K74	00000	000000	000000	000000	000000
2 3/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K75	00000	000000	000000	000000	000000
2 1/2"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K76	00000	000000	000000	000000	000000
2 5/8"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K77	00000	000000	000000	000000	000000
2 3/4"	-0.003" to 0.003"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K78	000000	000000	000000	000000	000000
3"	-0.003" to 0.003"	Cold Rolled	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K81	000000	000000	000000	000000	000000
3 1/4"	0" to 0.047"	Hot Rolled	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K83	000000	000000	000000	000000	00000000
3 1/2"	0" to 0.047"	Hot Rolled	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K84	000000	000000	000000	000000	00000000
4"	0" to 0.063"	Hot Rolled	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	89095K86	000000	000000	000000	000000	00000000

Machinable 416 Stainless Steel Bars

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Fabrication	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1 ft. Long	3 ft. Long	6 ft. Long
3/8" Thick (-0.004" to 0" Tolerance)



	3/8"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T101	000000	000000	000000


	1/2" Thick (-0.004" to 0" Tolerance)



			1/2"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T21	00000	00000	000000


			5/8" Thick (-0.004" to 0" Tolerance)



					5/8"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T31	00000	00000	000000


					3/4" Thick (-0.004" to 0" Tolerance)



							3/4"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T41	00000	00000	000000


							1" Thick (-0.004" to 0" Tolerance)



									1"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T612	00000	000000	000000


									1 1/4" Thick (-0.006" to 0" Tolerance)



											1 1/4"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T712	00000	000000	000000


											1 1/2" Thick (-0.006" to 0" Tolerance)



													1 1/2"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T81	00000	000000	000000


													1 3/4" Thick (-0.006" to 0" Tolerance)



															1 3/4"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T197	000000	000000	000000


															2" Thick (-0.006" to 0" Tolerance)



																	2"	Cold Drawn	Rockwell B103 (Hard)	Rockwell C24	ASTM A582	3699T198	000000	000000	000000

Tight-Tolerance Hardened Machinable 416 Stainless Steel Rods

The best balance of superior wear resistance, precision, and machinability. These 416 stainless steel rods come hardened to increase strength and resist denting and deforming. Precision ground to tight tolerances, they're all set to turn in your lathe.

416 is the easiest type of stainless steel to machine. Alloyed with sulfur, it cuts quickly without clogging your cutting tools. It won't wear down when it grinds against other metal parts, so it's a good choice for gears, screws, and shafts. It also maintains its corrosion resistance in temperatures as hot as 1200° F. However, it's not as corrosion resistant as other types of stainless steel, such as 304 and 17-4 PH.

Premium—It is also called Project 70+.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Dia. Tolerance	Fabrication	Hardness	Specs. Met		1 ft. Long	3 ft. Long	6 ft. Long
Stainless Steel



	1/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T1	000000	000000	000000


	3/16"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T2	00000	00000	00000
	3/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T3	00000	00000	00000
	1/2"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T4	00000	00000	00000
	5/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T5	00000	00000	000000
	3/4"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T6	00000	000000	000000
	7/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T7	00000	000000	000000
	1"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T8	00000	000000	000000
	1 1/2"	-0.0005" to 0.0005"	Cold Drawn	Rockwell C25 (Hard)	ASTM A582	7014T9	000000	000000	000000


	Premium



			5 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T101	00000	00000	00000


			6 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T102	00000	00000	00000
			7 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T103	00000	00000	00000
			8 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T104	00000	00000	00000
			10 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T105	00000	00000	00000
			12 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T106	00000	00000	00000
			14 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T107	00000	00000	000000
			16 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T108	00000	00000	000000
			18 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T109	00000	00000	000000
			20 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T201	00000	000000	000000
			25 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T202	00000	000000	000000


			50 mm	-0.0127 mm to 0 mm	Cold Worked	Rockwell C30 (Hard)	ASTM A582	3821T203	000000	000000	000000

Tight-Tolerance Machinable 416 Stainless Steel Rods

The easiest type of stainless steel to machine into precision parts. Ground to tight diameter tolerances, these rods are all set to turn in your lathe.

Even at whirring speeds, 416 cuts precisely without clogging your cutting tools because it's alloyed with sulfur. It won't wear down when it grinds against other metal parts, so it's a good choice for gears, screws, and shafts. It also maintains its corrosion resistance in temperatures as hot as 1200° F. However, it's not as corrosion resistant as other types of stainless steel, such as 304 and 17-4 PH.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Fabrication	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1/2 ft. Long	2 ft. Long	3 ft. Long	6 ft. Long
1/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K22	00000	000000	000000	000000
5/32"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K23	0000	00000	00000	00000
3/16"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K24	0000	00000	00000	00000
1/4"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K25	0000	00000	00000	00000
5/16"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K26	00000	00000	00000	00000
3/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K27	00000	00000	00000	00000
7/16"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K28	00000	00000	00000	00000
1/2"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K29	00000	00000	00000	00000
5/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K71	00000	00000	00000	00000
3/4"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K72	00000	00000	00000	000000
7/8"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K73	00000	00000	00000	000000
1"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K63	00000	00000	000000	000000
1 1/4"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K74	00000	00000	000000	000000
1 1/2"	-0.0005" to 0.0005"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C40	ASTM A582, SAE AMS5610	88955K75	00000	000000	000000	000000

Machinable 416 Stainless Steel Sheets

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Hardness	Max. Hardness After Heat Treatment	Specs. Met		Each







1/4" Thick (-0.01" to 0.06" Tolerance)

6"	6"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T146	000000


6"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T141	000000
12"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T142	000000
12"	24"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T144	000000




		1/2" Thick (-0.01" to 0.06" Tolerance)

		6"	6"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T26	000000


		6"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T21	000000
		12"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T22	000000
		12"	24"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T24	000000




				3/4" Thick (-0.01" to 0.07" Tolerance)

				6"	6"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T46	000000


				6"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T41	000000
				12"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T42	000000
				12"	24"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T44	000000




						1" Thick (-0.01" to 0.07" Tolerance)

						6"	6"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T56	000000


						6"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T51	000000
						12"	12"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T52	000000
						12"	24"	Hot Rolled	Rockwell B103 (Hard)	Rockwell C24	ASTM A895	1323T54	00000000

Machinable 416 Stainless Steel Hex Bars

The easiest type of stainless steel to drill, mill, and turn into standoffs, fittings, and other wrench-ready parts. Made to ASTM A484 specifications to fit standard hex sockets and tools, these bars make parts that are easy to grab and tighten. They will also hold their shape after repeated tightening and loosening.

Alloyed with more sulfur than 303, 416 stainless steel breaks cleanly into chips as you work, so it won’t clog your cutting tools. Its surface doesn’t harden, even after multiple passes. It maintains its corrosion resistance in temperatures as hot as 1200° F. However, it’s not as corrosion resistant as other types of stainless steel, such as 304 and 17-4 PH.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Wd.	Wd. Tolerance	Fabrication	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1/2 ft. Long	1 ft. Long	2 ft. Long	3 ft. Long	6 ft. Long
1/4"	-0.002" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K21	00000	00000	000000	000000	000000
3/8"	-0.003" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K91	0000	00000	00000	00000	00000
1/2"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K87	00000	00000	00000	00000	000000
9/16"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K88	—	00000	00000	00000	000000
5/8"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K89	00000	00000	00000	00000	000000
3/4"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K58	00000	00000	00000	000000	000000
7/8"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K64	00000	00000	000000	000000	000000
1"	-0.004" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K69	00000	00000	000000	000000	000000
1 1/4"	-0.006" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K74	00000	000000	000000	000000	000000
1 1/2"	-0.006" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K81	000000	000000	—	000000	000000
2"	-0.006" to 0"	Cold Drawn	Rockwell B80 (Medium)	Rockwell C35	ASTM A484, ASTM A582, SAE AMS5610	86755K85	000000	000000	—	000000	000000

Machine Key Stock

Cut this square or rectangular key stock to length to create a straight machine key. Straight keys are the most common type of key. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.

416 Stainless Steel

416 stainless steel key stock is stronger than other stainless key stock and can be heat treated for extra strength. It's corrosion resistant and magnetic. 416 stainless steel key stock is more corrosion resistant than steel key stock.

Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.

Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.

			Tolerance
	Ht. × Wd.	Tolerance Rating	Ht.	Wd.	Min. Hardness		Each
12" Long



		3/16" × 3/16"	Oversized	0.000" to 0.002"	0.000" to 0.002"	Not Rated	99374A453	00000


		3/16" × 3/16"	Undersized	-0.002" to 0.000"	-0.002" to 0.000"	Rockwell B86	99374A100	0000
		1/4" × 1/4"	Oversized	0.000" to 0.002"	0.000" to 0.002"	Not Rated	99374A344	0000
		1/4" × 1/4"	Undersized	-0.002" to 0.000"	-0.002" to 0.000"	Rockwell B86	99374A110	0000
		5/16" × 5/16"	Undersized	-0.003" to 0.000"	-0.003" to 0.000"	Rockwell B86	99374A120	00000
		3/8" × 3/8"	Oversized	0.000" to 0.003"	0.000" to 0.003"	Not Rated	99374A977	00000
		3/8" × 3/8"	Undersized	-0.003" to 0.000"	-0.003" to 0.000"	Rockwell B86	99374A130	00000
		1/2" × 1/2"	Undersized	-0.003" to 0.000"	-0.003" to 0.000"	Rockwell B86	99374A140	00000
		5/8" × 5/8"	Undersized	-0.004" to 0.000"	-0.004" to 0.000"	Rockwell B86	99374A150	00000
		3/4" × 3/4"	Undersized	-0.004" to 0.000"	-0.004" to 0.000"	Rockwell B86	99374A160	00000