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Machine Keys

Machine keys are parts used to fasten components such as gears, pulleys, sprockets and couplings to rotary shafts. They are used for applications that transmit power in machineries such as motors and reduction drives. Several types of machine keys are available. Parallel keys have the simplest structure. There are also specially shaped varieties such as taper keys and Woodruff keys. Machine keys come in various shapes, such as types with squared-off or rounded ends. There are also product lineups that include models with pre-drilled counterbore holes, taps or the like. Key sizes are defined by JIS standards in Japan. The applicable standard has been revised, so some models are compatible with the new standard and some with the old. The right machine key model should be selected by matching it to the size of the drive unit's shaft and keyway.

Shape	Parallel Keys (Straight) Parallel Keys (Round at One End) Parallel Keys (Round at Both Ends) Tapered Machine Keys Woodruff Keys
Brand	(14) (6) HIMENO PRECISION (5) NANKAI INDUSTRY (2) OHKITA (6) SEIKI (5) SUNCO (6) TRUSCO NAKAYAMA (2)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

40 items

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: 30; 45; 60

MiSUMi Economy

Parallel Keys Straight / Round at One End / Round at Both End

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 72.00
Days to Ship: Same day or more

Same day or more

MiSUMi Economy

Parallel Keys With Center Counterbored Hole

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 216.00
Days to Ship: 7 Day(s)

7 Day(s)

Parallel Keys

MISUMI

[Features]·Both fixed dimension selection and custom dimension types are available.

Volume Discount

CAD ：: 2D / 3D

Same day or more

Parallel Keys - With Counterbore

MISUMI

[Features]·A parallel key (counterbore center type). [Material]·S45C and SUS316.

CAD ：: 2D / 3D

8 Day(s) or more

Parallel Keys - With Counterbores and Tapped Hole

MISUMI

[Features]·A parallel key (counterbore tapped type). [Material]·S45C and SUS316.

CAD ：: 2D / 3D

8 Day(s) or more

New JIS Double Round End Key【1-100 Pieces Per Package】

HIMENO PRECISION

[Shape] Parallel machine key (both ends rounded) holes tapped not machined
[Surface treatment] None width (mm) 4 5 6 7 8 10 12 14 15 16 18 20 22 24 25 28 32
[Total length (mm)] 8 10 12 14 15 16 18 19 20 22 24 25 28 30 35 38 40 45 46 50 54 55 60 65 67 70 75 78 80 85 90 95 100 105 110 115 118 120 125 130 140 150 170 180 215
[Material] S45C Stainless steel
[Height (mm)] 4 5 6 7 8 9 10 11 12 14 16 18
[Sales unit] Sold individually (a single piece is available for purchase) box/pack

From: ₹ 80.20
Days to Ship: 5 Day(s) or more

5 Day(s) or more

New JIS Parallel Key

HIMENO PRECISION

A machine key with a total length of 300 mm.

From: ₹ 356.04
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Parallel Keys - Blank

MISUMI

[Features]·A parallel key (straight). [Material]·S45C.

Volume Discount

CAD ：: 2D / 3D

From: ₹ 392.00
Days to Ship: Same day or more

Same day or more

Parallel Keys - With Tapped Hole

MISUMI

[Features]·A parallel key (tapped hole type). [Material]·S45C and SUS316.

CAD ：: 2D / 3D

8 Day(s) or more

SEIKI Machine Key, Free Length Series (JIS B 1301)

SEIKI

Choose from over 8,000 length variations. For sizes not included in the standard series, click here. Key lengths can be specified in units of 1 mm, and can be prepared to your preferred size.

From: ₹ 318.91
Days to Ship: 5 Day(s) or more

5 Day(s) or more

New JIS Parallel Machine Key【1-100 Pieces Per Package】

HIMENO PRECISION

A machine key used to join parts such as gears and pulleys to a rotating axis so that they rotate together.
[Applications]
· Optimal for holding adjoined parts in place, such as shafts, gears and sprockets in motors and speed reducers.

From: ₹ 76.98
Days to Ship: 5 Day(s) or more

5 Day(s) or more

New JIS Single Round End Key【1-500 Pieces Per Package】

HIMENO PRECISION

[Shape] Parallel key (single round end shape) tapped hole no machining
[Surface treatment] None width (mm) 3 4 5 6 7 8 10 12 14 15 16 18 20 22 24 25 28 32
[Total length (mm)] 8 10 12 14 15 16 18 20 22 24 25 28 30 35 36 40 45 50 55 60 62 65 70 75 80 85 90 95 100 105 110 115 120 125 129 130 140 142 145 150 180
[Material] S45C Stainless steel
[Height (mm)] 3 4 5 6 7 8 9 10 11 12 14 16 18
[Sales unit] Sold individually (a single piece is available for purchase) box/pack

From: ₹ 81.99
Days to Ship: 5 Day(s) or more

5 Day(s) or more

SEIKI Machine Key, Standard Series (JIS B 1301)

SEIKI

[Features]
· Convenient SEIKI standard series.

From: ₹ 111.93
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Key material (S45C)

TRUSCO NAKAYAMA

Features
· Can be cut to a desired length and used.

Application
· Holds adjoined parts in place such as shafts, gears and sprockets in motors and speed reducers.

From: ₹ 260.01
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Economy series

MiSUMi Economy

Parallel Keys Semi-Finished

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 282.00
Days to Ship: 7 Day(s) or more

7 Day(s) or more

Tapered Machine Keys with Gib Head

MISUMI

[Features]·A taper key. ·No hole drilling. [Material]·S45C.

Volume Discount

CAD ：: 2D / 3D

From: ₹ 250.01
Days to Ship: 8 Day(s) or more

8 Day(s) or more

Economy series

MiSUMi Economy

Parallel Keys With Counterbores and Tapped Hole

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 321.60
Days to Ship: 7 Day(s)

7 Day(s)

SEIKI Machine Key Series with Release Tap (JIS B 1301)

SEIKI

Screw the bolt into the release tap to release the key. The removed key is not damaged so it can be reused.

From: ₹ 327.98
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Old JIS Parallel Key

HIMENO PRECISION

[Shape] Parallel key (straight)
[Overall length (mm)] 300 tapped hole no machining
[Surface treatment] None
[Sales unit] Sold individually (a single piece is available for purchase) width (mm) 4 5 7 8 10 12 15 18 20 24 28 32 35 38 42 45 50
[Material] S45C Stainless steel
[Height (mm)] 4 5 7 8 10 12

From: ₹ 352.49
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Woodruff Key

OHKITA

[All Products Available Individually]
· Face milling cutter enables keyways to be easily machined.
Material = S45C

From: ₹ 140.01
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Parallel Keys - With Tapped Counterbore Hole

MISUMI

[Features]·A parallel key (tapped counterbore center type). [Material]·S45C and SUS316.

CAD ：: 2D / 3D

8 Day(s) or more

Economy series

MiSUMi Economy

Parallel Keys With Tapped Counterbored Hole

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 264.00
Days to Ship: 7 Day(s)

7 Day(s)

Rounded Key

OHKITA

Made by Okita Co., Ltd., Machine key, Double round end key. [Shape]Parallel key (Double-end rounded)

From: ₹ 236.03
Days to Ship: 7 Day(s) or more

7 Day(s) or more

Parallel Key Both Round Seiki Seisakusho

SUNCO

[Material] S50C SUS316

From: ₹ 157.25
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Parallel Keys - Stainless Steel

MISUMI

[Features]·Stainless steel parallel key (blank type). [Material]·SUS316.

Volume Discount

CAD ：: 2D / 3D

From: ₹ 1,056.85
Days to Ship: Same day or more

Same day or more

Both Ends Round【1-500 Pieces Per Package】

NANKAI INDUSTRY

Heat-treated key material

From: ₹ 101.96
Days to Ship: 5 Day(s) or more

5 Day(s) or more

SEIKI Machine Key, Key Material

SEIKI

Material used for machine keys.

From: ₹ 965.78
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Parallel Key Seiki Seisakusho

SUNCO

Square machine keys, made by Seiki Seisakusho. Material: S50C, strength: 600 N⋅mm2 or more

From: ₹ 140.01
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Parallel Key Both Round Himeno Precision Works, Inc.

SUNCO

Double round end key. [Materials]Can choose from S45C/stainless steel etc.

From: ₹ 134.01
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Parallel Key Stock, Former JIS

OHKITA

A standard size (300 mm) key stock finished within the tolerance of JIS 1959 version.

From: ₹ 378.69
Days to Ship: 7 Day(s) or more

7 Day(s) or more

Single-End Rounded Machine Key

OHKITA

Made by Okita Co., Ltd., Machine key, Single-end rounded machine key. [Shape]Parallel key (Single-end rounded)

From: ₹ 216.95
Days to Ship: 8 Day(s) or more

8 Day(s) or more

Economy series

MiSUMi Economy

Parallel Keys With Tapped Hole

MiSUMi Economy

MISUMI

CAD ：: 2D / 3D

From: ₹ 210.00
Days to Ship: Same day or more

Same day or more

Parallel key both round type (S45C)【5-10 Pieces Per Package】

TRUSCO NAKAYAMA

Features
· Double round end machine keys are simple and fast to use.

Application
· Holds adjoined parts in place such as shafts, gears and sprockets in motors and speed reducers.

From: ₹ 712.96
Days to Ship: 5 Day(s) or more

5 Day(s) or more

Single Round Key, Made by SEIKI Manufacturing

SUNCO

Single-end rounded machine key. [Shape]Parallel key (Single round end); Material: S50C SUS316

From: ₹ 260.40
Days to Ship: 6 Day(s) or more

6 Day(s) or more

New JIS Headed Gradient Key, by Himeno Seisakusho

SUNCO

[Shape] Gradient Key
[Material] Iron
[Width (mm)] 4/5/6/7/8/10/12/14/16/18/20/22/25/28/32/36/40/45/50
[Overall length (mm)] 30/40/45/60/75/90/110/120/135/150/170/200/210/240/280/310/340/370
[Hole Machining] No Machining

From: ₹ 516.22
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Both Ends Square【1-100 Pieces Per Package】

NANKAI INDUSTRY

[Shape] Parallel key (straight) tapped hole no machining
[Material] Steel
[Surface treatment] None width (mm) 4 5 6 7 8 10 12 14
[Total length (mm)] 10 12 15 20 25 30 35 40 45 50 60 70 80
[Height (mm)] 4 5 6 7 8 9
[Sales unit] Sold individually (a single piece is available for purchase) box/pack
[Type] RK

From: ₹ 79.67
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Old JIS Head Gradient Key

SUNCO

[Material] Iron
[Width (mm)] 4/5/6/7/8/10/12/15/18/20/24/28/32/35/38/42/45
[Overall length (mm)] 30/40/45/50/65/75/90/110/135/150/180/210/240/260/285/315/340
[Hole Machining] No Machining

From: ₹ 915.62
Days to Ship: 6 Day(s) or more

6 Day(s) or more

Standard Size Key【1-2 Pieces Per Package】

SEIKI

Convenient "key stock" from SEIKI.
[Features]
・ Guaranteed strength allows you to use with confidence
・ Excellent corrosion resistance (SUS316)
・ Standard dimensional accuracy for JIS B1301 (Back side)
・ Easy-to-use length

Days to Ship: 12 Day(s) or more

12 Day(s) or more

Square Machine Keys

OHKITA

Made by Okita Co., Ltd., Machine key, Square machine keys. [Shape]Parallel key (Straight)

From: ₹ 227.28
Days to Ship: 7 Day(s) or more

7 Day(s) or more

Parallel Key Stock, New JIS

OHKITA

[Shape]Parallel key (straight); Material: Steel/Stainless steel; Overall length: 300 mm

From: ₹ 248.74
Days to Ship: 7 Day(s) or more

7 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Specifications
Shape
Width(mm)
Overall Length(mm)
Material
Hole Machining

	Recommendation	Recommendation
Brand	MISUMI MiSUMi Economy	MISUMI MiSUMi Economy	MISUMI	MISUMI	MISUMI	HIMENO PRECISION	HIMENO PRECISION	MISUMI	MISUMI	SEIKI	HIMENO PRECISION	HIMENO PRECISION	SEIKI	TRUSCO NAKAYAMA	MISUMI MiSUMi Economy	MISUMI	MISUMI MiSUMi Economy	SEIKI	HIMENO PRECISION	OHKITA	MISUMI	MISUMI MiSUMi Economy	OHKITA	SUNCO	MISUMI	NANKAI INDUSTRY	SEIKI	SUNCO	SUNCO	OHKITA	OHKITA	MISUMI MiSUMi Economy	TRUSCO NAKAYAMA	SUNCO	SUNCO	NANKAI INDUSTRY	SUNCO	SEIKI	OHKITA	OHKITA
Product Series	Parallel Keys Straight / Round at One End / Round at Both End	Parallel Keys With Center Counterbored Hole	Parallel Keys	Parallel Keys - With Counterbore	Parallel Keys - With Counterbores and Tapped Hole	New JIS Double Round End Key【1-100 Pieces Per Package】	New JIS Parallel Key	Parallel Keys - Blank	Parallel Keys - With Tapped Hole	SEIKI Machine Key, Free Length Series (JIS B 1301)	New JIS Parallel Machine Key【1-100 Pieces Per Package】	New JIS Single Round End Key【1-500 Pieces Per Package】	SEIKI Machine Key, Standard Series (JIS B 1301)	Key material (S45C)	Parallel Keys Semi-Finished	Tapered Machine Keys with Gib Head	Parallel Keys With Counterbores and Tapped Hole	SEIKI Machine Key Series with Release Tap (JIS B 1301)	Old JIS Parallel Key	Woodruff Key	Parallel Keys - With Tapped Counterbore Hole	Parallel Keys With Tapped Counterbored Hole	Rounded Key	Parallel Key Both Round Seiki Seisakusho	Parallel Keys - Stainless Steel	Both Ends Round【1-500 Pieces Per Package】	SEIKI Machine Key, Key Material	Parallel Key Seiki Seisakusho	Parallel Key Both Round Himeno Precision Works, Inc.	Parallel Key Stock, Former JIS	Single-End Rounded Machine Key	Parallel Keys With Tapped Hole	Parallel key both round type (S45C)【5-10 Pieces Per Package】	Single Round Key, Made by SEIKI Manufacturing	New JIS Headed Gradient Key, by Himeno Seisakusho	Both Ends Square【1-100 Pieces Per Package】	Old JIS Head Gradient Key	Standard Size Key【1-2 Pieces Per Package】	Square Machine Keys	Parallel Key Stock, New JIS
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D			2D / 3D	2D / 3D						2D / 3D	2D / 3D	2D / 3D				2D / 3D	2D / 3D			2D / 3D							2D / 3D
From	₹ 72.00	₹ 216.00				₹ 80.20	₹ 356.04	₹ 392.00		₹ 318.91	₹ 76.98	₹ 81.99	₹ 111.93	₹ 260.01	₹ 282.00	₹ 250.01	₹ 321.60	₹ 327.98	₹ 352.49	₹ 140.01		₹ 264.00	₹ 236.03	₹ 157.25	₹ 1,056.85	₹ 101.96	₹ 965.78	₹ 140.01	₹ 134.01	₹ 378.69	₹ 216.95	₹ 210.00	₹ 712.96	₹ 260.40	₹ 516.22	₹ 79.67	₹ 915.62		₹ 227.28	₹ 248.74
Days to Ship	Same day or more	7 Day(s)	Same day or more	8 Day(s) or more	8 Day(s) or more	5 Day(s) or more	5 Day(s) or more	Same day or more	8 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	7 Day(s) or more	8 Day(s) or more	7 Day(s)	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	8 Day(s) or more	7 Day(s)	7 Day(s) or more	6 Day(s) or more	Same day or more	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	6 Day(s) or more	7 Day(s) or more	8 Day(s) or more	Same day or more	5 Day(s) or more	6 Day(s) or more	6 Day(s) or more	6 Day(s) or more	6 Day(s) or more	12 Day(s) or more	7 Day(s) or more	7 Day(s) or more
Specifications
Shape	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Straight)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Round at One End)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Straight)	Tapered Machine Keys	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Woodruff Keys	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Round at Both Ends)	Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Straight)	Parallel Keys (Round at Both Ends)	Parallel Keys (Straight)	Parallel Keys (Round at One End)	Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)	Parallel Keys (Round at Both Ends)	Parallel Keys (Round at One End)	Tapered Machine Keys	Parallel Keys (Straight)	Tapered Machine Keys	Parallel Keys (Straight)	Parallel Keys (Straight)	Parallel Keys (Straight)
Width(mm)	3 ～ 8	8 ～ 12	2 ～ 32	8 ～ 18	8 ～ 18	4 ～ 28	2 ～ 56	3 ～ 18	5 ～ 18	2 ～ 18	3 ～ 25	3 ～ 28	2 ～ 14	3 ～ 36	5 ～ 12	4 ～ 38	8	5 ～ 12	4 ～ 50	3 ～ 10	8 ～ 18	12	3 ～ 36	4 ～ 20	2 ～ 14	4 ～ 14	2 ～ 14	5	3 ～ 5	8 ～ 50	3 ～ 36	5	3 ～ 12	3 ～ 5	12	4 ～ 14	15 ～ 20	3 ～ 22	3 ～ 36	3 ～ 56
Overall Length(mm)	10 ～ 40	20 ～ 25	5 ～ 300	15 ～ 110	35 ～ 110	8 ～ 150	300	300	10 ～ 120	5 ～ 120	10 ～ 150	8 ～ 150	5 ～ 100	300	300	34 ～ 323	70	10 ～ 100	300	-	15 ～ 110	25	6 ～ 150	12 ～ 150	350	8 ～ 150	350	14	7 ～ 15	-	6 ～ 150	20	8 ～ 80	8 ～ 20	90	10 ～ 80	110 ～ 150	300 ～ 350	6 ～ 150	-
Material	Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel	Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Stainless Steel	Steel / Stainless Steel	Stainless Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel	Stainless Steel	Steel	Steel	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel
Hole Machining	Straight	Counterbored Hole	Straight	Counterbored Hole	Center Tapped + Counterbored	Straight	Straight	Straight	Center Tapped	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Counterbored + Tapped	Center Tapped	Straight	Straight	Counterbored + Tapped	Counterbored + Tapped	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Center Tapped	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight

Configure

Specification/Dimensions

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56
Clear

Overall Length(mm)
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350
[10-120/5mm Unit(s)][5-300/1mm Unit(s)]
Clear