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  7. Machine Keys

Machine Keys (451 items)

Zoro Select Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 3/16 in Sq, 10 PK WWG-30007
Zoro Select

Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 3/16 in Sq, 10 PK

Zoro # G0802846
Mfr # WWG-30007
product price:  $3.39
/pk 10, $0.34/ea
Zoro Select Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 1/4 in Sq, 10 PK WWG-30014
Zoro Select

Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 1/4 in Sq, 10 PK

Zoro # G1738694
Mfr # WWG-30014
product price:  $2.99
/pk 10, $0.30/ea
Huyett Undersized Machine Key, Square End, Stainless Steel, Plain, 4 3/4 in L, 5/16 in Sq 7003120312-4750
Huyett

Undersized Machine Key, Square End, Stainless Steel, Plain, 4 3/4 in L, 5/16 in Sq

Zoro # G9124188
Mfr # 7003120312-4750
product price:  $1.85
/ea
Sold in mult. of 8 for $14.80
Zoro Select Undersized Machine Key, Square End, Steel, Plain, 1-1/2 in L, 3/8 in Sq, 10 PK WWG-30026
Zoro Select

Undersized Machine Key, Square End, Steel, Plain, 1-1/2 in L, 3/8 in Sq, 10 PK

Zoro # G1847194
Mfr # WWG-30026
product price:  $8.15
/pk 10, $0.82/ea
Huyett Oversized Machine Key, Round End, Steel, Plain, 3/4 in L, 3/8 in Sq 3203750375-0750
Huyett

Oversized Machine Key, Round End, Steel, Plain, 3/4 in L, 3/8 in Sq

Zoro # G9121071
Mfr # 3203750375-0750
product price:  $1.65
/ea
Sold in mult. of 175 for $288.75
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 5/16 in Sq WWG-0312-3000GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 5/16 in Sq

Zoro # G1730197
Mfr # WWG-0312-3000GB
product price:  $7.49
/ea
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 3/8 in Sq WWG-0375-3000GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 3/8 in Sq

Zoro # G2985062
Mfr # WWG-0375-3000GB
product price:  $10.89
/ea
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 1/4 in Sq WWG-0250-3000GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 1/4 in Sq

Zoro # G0629711
Mfr # WWG-0250-3000GB
product price:  $6.29
/ea
Huyett Undersized Machine Key, Round End, Stainless Steel, Plain, 40 mm L, 8 x 7 mm Sq 720807-040
Huyett

Undersized Machine Key, Round End, Stainless Steel, Plain, 40 mm L, 8 x 7 mm Sq

Zoro # G9124705
Mfr # 720807-040
product price:  $3.95
/ea
Sold in mult. of 5 for $19.75
Huyett Undersized Machine Key, Round End, Stainless Steel, Plain, 3/4 in L, 3/16 in Sq 7201870187-0750
Huyett

Undersized Machine Key, Round End, Stainless Steel, Plain, 3/4 in L, 3/16 in Sq

Zoro # G9124790
Mfr # 7201870187-0750
product price:  $2.15
/ea
Sold in mult. of 8 for $17.20
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 1-1/2 in L, 3/16 in Sq WWG-0187-1500GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 1-1/2 in L, 3/16 in Sq

Zoro # G0949532
Mfr # WWG-0187-1500GB
product price:  $3.19
/ea
Zoro Select Oversized Machine Key, Square End, Steel, Plain, 1-1/2 in L, 3/16 in Sq, 10 PK WWG-35240
Zoro Select

Oversized Machine Key, Square End, Steel, Plain, 1-1/2 in L, 3/16 in Sq, 10 PK

Zoro # G1554761
Mfr # WWG-35240
product price:  $8.29
/pk 10, $0.83/ea
Zoro Select Oversized Machine Key, Square End, Steel, Plain, 1/2 in L, 3/16 in Sq, 5 PK WWG-37001
Zoro Select

Oversized Machine Key, Square End, Steel, Plain, 1/2 in L, 3/16 in Sq, 5 PK

Zoro # G1238797
Mfr # WWG-37001
product price:  $8.49
/pk 5, $1.70/ea
Huyett Undersized Machine Key, Square End, Carbon Steel, Plain, 16 mm L, 5 mm Sq 300505-016
Huyett

Undersized Machine Key, Square End, Carbon Steel, Plain, 16 mm L, 5 mm Sq

Zoro # G500006264
Mfr # 300505-016
product price:  $0.11
/ea
Sold in mult. of 185 for $20.35
Huyett Oversized Machine Key, Round End, Carbon Steel, Plain, 1-1/2 in L, 3/8 in Sq 3703750375-1500
Huyett

Oversized Machine Key, Round End, Carbon Steel, Plain, 1-1/2 in L, 3/8 in Sq

Zoro # G900006345
Mfr # 3703750375-1500
product price:  $1.15
/ea
Sold in mult. of 25 for $28.75
Huyett Undersized Machine Key, Square End, Carbon Steel, Plain, 1-1/4 in L, 3/16 in Sq 3001870187-1250
Huyett

Undersized Machine Key, Square End, Carbon Steel, Plain, 1-1/4 in L, 3/16 in Sq

Zoro # G800004366
Mfr # 3001870187-1250
product price:  $0.10
/ea
Sold in mult. of 297 for $29.70
Huyett Undersized Machine Key, Square End, Steel, Plain, 5/8 in L, 3/16 in Sq 3001870187-0625
Huyett

Undersized Machine Key, Square End, Steel, Plain, 5/8 in L, 3/16 in Sq

Zoro # G9116740
Mfr # 3001870187-0625
product price:  $0.07
/ea
Sold in mult. of 410 for $28.70
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 5/8 in Sq WWG-0625-3000GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 5/8 in Sq

Zoro # G2570242
Mfr # WWG-0625-3000GB
product price:  $14.39
/ea
Zoro Select Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 1/2 in Sq WWG-0500-3000GB
Zoro Select

Tapered Gib Head Machine Key, Tapered Gib End, Steel, Plain, 3 in L, 1/2 in Sq

Zoro # G1115877
Mfr # WWG-0500-3000GB
product price:  $9.89
/ea
Zoro Select Undersized Machine Key, Square End, Steel, Plain, 2-1/2 in L, 1/2 in Sq, 10 PK WWG-30031
Zoro Select

Undersized Machine Key, Square End, Steel, Plain, 2-1/2 in L, 1/2 in Sq, 10 PK

Zoro # G1629241
Mfr # WWG-30031
product price:  $14.29
/pk 10, $1.43/ea
Huyett Mil-Spec Machine Key, Square End, Carbon Steel, Plain, 1/2 in L, 1/4 in Sq MS20066-249
Huyett

Mil-Spec Machine Key, Square End, Carbon Steel, Plain, 1/2 in L, 1/4 in Sq

Zoro # G200019854
Mfr # MS20066-249
product price:  $1.99
/ea
Sold in mult. of 120 for $238.80
Huyett Oversized Machine Key, Round End, Steel, Plain, 22 mm L, 5 mm Sq 320505-022
Huyett

Oversized Machine Key, Round End, Steel, Plain, 22 mm L, 5 mm Sq

Zoro # G9121491
Mfr # 320505-022
product price:  $0.27
/ea
Sold in mult. of 85 for $22.95
Huyett Undersized Machine Key, Square End, Steel, Plain, 4-3/4 in L, 3/8 in Sq 3003750375-4750
Huyett

Undersized Machine Key, Square End, Steel, Plain, 4-3/4 in L, 3/8 in Sq

Zoro # G9118280
Mfr # 3003750375-4750
product price:  $1.39
/ea
Sold in mult. of 15 for $20.85
Huyett Undersized Machine Key, Square End, Steel, Plain, 7 in L, 1/4 in Sq 3002500250-7000
Huyett

Undersized Machine Key, Square End, Steel, Plain, 7 in L, 1/4 in Sq

Zoro # G9117547
Mfr # 3002500250-7000
product price:  $1.15
/ea
Sold in mult. of 20 for $23.00
Zoro Select Oversized Machine Key, Square End, Steel, Plain, 1-3/4 in L, 3/16 in Sq, 10 PK WWG-35241
Zoro Select

Oversized Machine Key, Square End, Steel, Plain, 1-3/4 in L, 3/16 in Sq, 10 PK

Zoro # G2405611
Mfr # WWG-35241
product price:  $7.59
/pk 10, $0.76/ea
Huyett Undersized Machine Key, Round End, Stainless Steel, Plain, 40 mm L, 10 x 8 mm Sq 721008-040
Huyett

Undersized Machine Key, Round End, Stainless Steel, Plain, 40 mm L, 10 x 8 mm Sq

Zoro # G9125061
Mfr # 721008-040
product price:  $4.49
/ea
Sold in mult. of 4 for $17.96
Huyett Oversized Machine Key, Round End, Carbon Steel, Plain, 3/4 in L, 3/16 in Sq 3201870187-0750
Huyett

Oversized Machine Key, Round End, Carbon Steel, Plain, 3/4 in L, 3/16 in Sq

Zoro # G9120925
Mfr # 3201870187-0750
product price:  $0.31
/ea
Sold in mult. of 75 for $23.25
Huyett Oversized Machine Key, Round End, Steel, Plain, 56 mm L, 8 x 7 mm Sq 320807-056
Huyett

Oversized Machine Key, Round End, Steel, Plain, 56 mm L, 8 x 7 mm Sq

Zoro # G9122045
Mfr # 320807-056
product price:  $0.66
/ea
Sold in mult. of 5000 for $3,300.00
Huyett Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 1/2 in Sq 7005000500-1250
Huyett

Undersized Machine Key, Square End, Steel, Plain, 1-1/4 in L, 1/2 in Sq

Zoro # G9124477
Mfr # 7005000500-1250
product price:  $4.15
/ea
Sold in mult. of 10 for $41.50
Huyett Oversized Machine Key, Round End, Carbon Steel, Zinc Clear Trivalent, 80 mm L, 12 x 8 mm Sq 32Z1208-080
Huyett

Oversized Machine Key, Round End, Carbon Steel, Zinc Clear Trivalent, 80 mm L, 12 x 8 mm Sq

Zoro # G9122779
Mfr # 32Z1208-080
product price:  $1.59
/ea
Sold in mult. of 12 for $19.08
Heritage Undersized Machine Key, Square End, Carbon Steel, Zinc Clear Trivalent, 3/4 in L, 1/8 in Sq 3101250125-0750
Heritage

Undersized Machine Key, Square End, Carbon Steel, Zinc Clear Trivalent, 3/4 in L, 1/8 in Sq

Zoro # G708170453
Mfr # 3101250125-0750
product price:  $0.32
/ea
Sold in mult. of 52 for $16.64
Midwest Fastener Machine Key Machine Key, Square End, Stainless Steel, 1-1/2 in L, 1/8 in Sq, 8 PK 36402
Midwest Fastener

Machine Key Machine Key, Square End, Stainless Steel, 1-1/2 in L, 1/8 in Sq, 8 PK

Zoro # G802526125
Mfr # 36402
product price:  $12.15
/pk 8, $1.52/ea
Huyett Undersized Machine Key, Round End, Stainless Steel, Plain, 12 mm L, 5 mm Sq 720505-012
Huyett

Undersized Machine Key, Round End, Stainless Steel, Plain, 12 mm L, 5 mm Sq

Zoro # G500005731
Mfr # 720505-012
product price:  $1.89
/ea
Sold in mult. of 13 for $24.57
Huyett Undersized Machine Key, Square End, Steel, Plain, 180 mm L, 32 x 18 mm Sq 303218-180
Huyett

Undersized Machine Key, Square End, Steel, Plain, 180 mm L, 32 x 18 mm Sq

Zoro # G9120277
Mfr # 303218-180
product price:  $16.49
/ea
Sold in mult. of 5 for $82.45
Huyett Undersized Machine Key, Square End, Steel, Plain, 6 in L, 3/4 in Sq 3007500750-6000
Huyett

Undersized Machine Key, Square End, Steel, Plain, 6 in L, 3/4 in Sq

Zoro # G9119498
Mfr # 3007500750-6000
product price:  $4.79
/ea
Sold in mult. of 4 for $19.16
Huyett Undersized Machine Key, Square End, Stainless Steel, Plain, 1-1/4 in L, 3/16 in Sq 8001870187-1250
Huyett

Undersized Machine Key, Square End, Stainless Steel, Plain, 1-1/4 in L, 3/16 in Sq

Zoro # G900005829
Mfr # 8001870187-1250
product price:  $0.33
/ea
Sold in mult. of 56 for $18.48
Machine Keys (451 items)
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About Machine Keys

Machine Keys are essential components for many mechanical operations. They come in a variety of shapes, sizes, and materials to suit the needs of any application.

Types of Machine Keys

Machine Key stock is available in a wide range of shapes and sizes, including flat keys, round keys, square keys, rectangular keys, and more. Different types of machine key stock may be used depending on the type of job or application they are being used for.

How Machine Keys are Made

Machine Keys are typically made from metal alloys such as steel or brass. They can also be constructed from other materials such as plastic or composite materials. The shape and size of the key will depend on its intended use.

Industries that use Machine Keys

Machine Keys are commonly used in industries such as automotive manufacturing, construction equipment manufacturing, and aerospace engineering. Professionals in these fields rely on machine keys to ensure accurate fitment and secure fastening when installing components.

Find the Machine Keys You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of fasteners, along with other tools or supplies to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Undersized Key StockOversized Key StockWoodruff Key StockStep Key StockGeneral Washers
External Retaining RingsHex Head Cap ScrewsFully-Threaded Rods & StudsSpring PinsInternal Retaining Rings
machine key machine keymetric machine keygib keyundersized machine keymachine key steel
rounded machine keysmachine key round endmachine key squaremachine keyMachine Screws

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