12L14 Carbon Steel Rotary Shafts

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M2 High-Speed Tool Steel

M4 High-Speed Tool Steel

M42 High-Speed Tool Steel

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Mechanical Finish

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Hardness Rating

Hardness

Fabrication

Performance

Specifications Met

Yield Strength

20,000 psi to 99,999 psi

Appearance

Maximum Hardness After Heat Treatment

Rockwell C60

Rockwell C65

Not Rated

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

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Material Certificate with Traceable Lot Number

Heat Treatable

Yes

Length Tolerance Type

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REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

RoHS

117 Products

About Steel

Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

Tight-Tolerance Ultra-Machinable 12L14 Carbon Steel Rods

Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts, such as shaft couplings, studs, and pins. For added wear resistance, they can be surface hardened with heat treating.

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

Dia.	Dia. Tolerance	Fabrication	Yield Strength, psi	Mechanical Finish	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1/2 ft. Long	1 ft. Long	2 ft. Long	3 ft. Long	4 ft. Long	6 ft. Long	8 ft. Long	12 ft. Long
1/16"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T101	—	—	—	—	—	000000	—	—
3/32"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T42	—	—	—	00000	—	00000	000000	—
1/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T43	—	—	—	0000	—	00000	00000	000000
5/32"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T44	—	—	—	0000	000000	00000	00000	—
3/16"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T45	—	—	—	0000	00000	00000	00000	00000
1/4"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T232	—	00000	—	00000	00000	00000	00000	—
5/16"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T242	—	0000	000000	00000	00000	00000	00000	—
3/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T252	—	0000	00000	00000	00000	00000	00000	—
7/16"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T192	—	0000	00000	00000	00000	00000	00000	—
1/2"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T262	—	0000	00000	00000	00000	00000	00000	00000
9/16"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T55	—	00000	—	00000	—	00000	—	—
5/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T272	—	00000	00000	00000	00000	00000	00000	—
3/4"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T282	—	00000	00000	00000	00000	00000	000000	—
7/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T312	—	00000	00000	00000	—	000000	—	—
1"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T322	000000	00000	00000	00000	000000	000000	000000	—
1 1/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T14	00000	00000	00000	00000	—	000000	—	—
1 1/4"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T152	00000	00000	00000	000000	—	000000	—	—
1 3/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T57	—	00000	—	000000	—	000000	—	—
1 1/2"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T172	00000	00000	00000	000000	—	000000	—	—
1 5/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T16	00000	00000	000000	000000	—	000000	—	—
1 3/4"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T18	00000	00000	000000	000000	—	000000	—	—
1 7/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T33	00000	00000	000000	000000	—	—	—	—
2"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T34	00000	000000	000000	000000	—	000000	—	—
2 1/2"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T37	000000	000000	000000	000000	—	000000	—	—
2 5/8"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T38	000000	000000	000000	—	—	—	—	—
2 3/4"	-0.0005" to 0"	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5227T531	000000	—	—	—	—	—	—	—
2 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T212	—	0000	—	0000	—	00000	—	—
3 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T222	—	0000	—	0000	—	00000	—	—
4 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T232	—	0000	—	0000	—	00000	—	—
5 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T242	—	0000	—	00000	—	00000	—	—
6 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T252	—	0000	—	00000	00000	00000	00000	—
7 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T262	—	0000	—	00000	—	00000	—	—
8 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T272	—	0000	00000	00000	00000	00000	00000	—
9 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T282	—	0000	—	00000	—	00000	—	—
10 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T312	—	0000	00000	00000	00000	00000	00000	—
12 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T332	—	00000	00000	00000	00000	00000	00000	—
13 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T342	—	00000	—	00000	—	00000	—	—
14 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T352	—	00000	00000	00000	—	00000	00000	—
15 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T362	—	00000	00000	00000	00000	00000	00000	—
16 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T51	—	00000	00000	00000	—	00000	—	—
18 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T52	—	00000	00000	00000	—	00000	—	—
20 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T382	—	00000	00000	00000	00000	00000	000000	000000
25 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T372	00000	00000	00000	00000	00000	000000	000000	—
30 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T32	—	00000	00000	000000	—	000000	—	—
35 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T53	00000	00000	000000	000000	—	000000	—	—
40 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T392	00000	00000	000000	000000	—	000000	—	—
45 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T54	—	000000	000000	000000	—	000000	—	—
50 mm	-0.012 mm to 0 mm	Cold Worked	65,000	Precision Ground	Rockwell B80 (Medium)	Rockwell C65	ASTM A108	5544T55	—	000000	000000	000000	—	000000	—	—

Ultra-Machinable 12L14 Carbon Steel Rods

The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts, such as shaft couplings, studs, and pins. For added wear resistance, they can be surface hardened with heat treating.

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

Dia.	Dia. Tolerance	Fabrication	Yield Strength, psi	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1 ft. Long	3 ft. Long	6 ft. Long
1/4"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K115	00000	00000	00000
3/8"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K135	0000	00000	00000
7/16"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K145	0000	00000	00000
1/2"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K155	0000	00000	00000
5/8"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K175	0000	00000	00000
3/4"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K192	00000	00000	00000
7/8"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K212	00000	00000	00000
1"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K232	00000	00000	00000
1 1/8"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K252	00000	00000	000000
1 1/4"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K272	00000	00000	000000
1 3/8"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K292	00000	00000	000000
1 1/2"	-0.002" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K312	00000	000000	000000
1 5/8"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K32	00000	000000	000000
1 3/4"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K36	00000	000000	000000
1 7/8"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K42	00000	000000	000000
2"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K46	00000	000000	000000
2 1/8"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K52	00000	000000	000000
2 1/4"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K56	000000	000000	000000
2 3/8"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K62	000000	000000	000000
2 1/2"	-0.003" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K66	000000	000000	000000
2 5/8"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K72	000000	000000	—
2 3/4"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K74	000000	000000	—
2 7/8"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K76	000000	000000	—
3"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K78	000000	000000	—
3 1/8"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K82	000000	000000	—
3 1/4"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K84	000000	000000	—
3 1/2"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K88	000000	000000	—
3 3/4"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K94	000000	000000	—
4"	-0.004" to 0"	Cold Worked	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	90075K98	000000	000000	—

Ultra-Machinable 12L14 Carbon Steel Hex Bars

The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts, such as hex nuts, compression fittings, and hydraulic adapters. For added wear resistance, they can be surface hardened with heat treating.

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

Wd.	Wd. Tolerance	Yield Strength, psi	Hardness		1 ft. Long	3 ft. Long	6 ft. Long
3/16"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K122	00000	00000	000000
1/4"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K112	0000	0000	00000
5/16"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K132	0000	0000	00000
3/8"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K152	0000	00000	00000
7/16"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K172	0000	00000	00000
1/2"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K192	0000	00000	00000
9/16"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K142	0000	00000	00000
5/8"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K212	0000	00000	00000
11/16"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K162	0000	00000	00000
3/4"	-0.002" to 0"	60,000	Rockwell B85 (Medium)	6606K232	0000	00000	00000
13/16"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K182	00000	00000	00000
7/8"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K85	00000	00000	00000
15/16"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K222	00000	00000	00000
1"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K87	00000	00000	00000
1 1/8"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K242	00000	00000	00000
1 1/4"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K89	00000	00000	000000
1 3/8"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K31	00000	00000	000000
1 1/2"	-0.003" to 0"	60,000	Rockwell B85 (Medium)	6606K33	00000	00000	000000
1 3/4"	-0.004" to 0"	60,000	Rockwell B85 (Medium)	6606K35	00000	00000	000000
2"	-0.004" to 0"	60,000	Rockwell B85 (Medium)	6606K37	00000	000000	000000
3"	-0.005" to 0"	60,000	Rockwell B85 (Medium)	6606K38	000000	000000	000000

Two-Piece Rigid Shaft Couplings

Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts. These couplings clamp onto the shafts, creating a secure hold that won’t mar them. Good for high-torque applications, they have a rigid construction. However, their rigidity means these couplings can only connect shafts that are well aligned.

Black-Oxide 12L14 Carbon Steel

Black-oxide carbon steel couplings have some corrosion resistance but should be used in dry environments.

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Square Shafts



	1/4" × 1/4"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K137	000000


	5/16" × 5/16"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K138	00000
	3/8" × 3/8"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K139	00000
	7/16" × 7/16"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K141	00000
	1/2" × 1/2"	2 5/8"	1 3/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K142	00000
	5/8" × 5/8"	3"	2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K144	00000
	3/4" × 3/4"	3 1/4"	2 1/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K146	00000
	7/8" × 7/8"	3 3/8"	2 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K147	00000
	1" × 1"	3 3/4"	2 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K148	00000


	For Hex Shafts



			1/4" × 1/4"	1 1/4"	13/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K101	00000


			5/16" × 5/16"	1 1/4"	13/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K102	00000
			3/8" × 3/8"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K103	00000
			7/16" × 7/16"	1 7/8"	1 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K104	00000
			1/2" × 1/2"	1 7/8"	1 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K105	00000
			5/8" × 5/8"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K107	00000
			11/16" × 11/16"	2 7/8"	1 7/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K108	00000
			3/4" × 3/4"	2 7/8"	1 7/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K109	00000
			7/8" × 7/8"	3"	2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K181	00000
			1" × 1"	3 1/4"	2 1/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K182	000000