Stock Drive Products & Sterling Instrument - SDP/SI Datasheets for Machine Keys and Keystock

Machine keys and keystock are demountable machine elements that are used to transmit torque from a shaft to a mounted component, such as a gear or pulley. They are usually made of steel or stainless steel and plated with zinc for wear and oxidation resistance.
Machine Keys and Keystock: Learn more

Product Name Notes
0.0625" Wide, 0.25" O.D., 303 Stainless Woodruff Key -- A 9X49-0208
0.0625" Wide, 0.312" O.D., 303 Stainless Woodruff Key -- A 9X49-0210
0.0625" Wide, 0.375" O.D., 303 Stainless Woodruff Key -- A 9X49-0212
0.0625" Wide, 0.5" O.D., 303 Stainless Woodruff Key -- A 9X49-0216
0.0938" Wide, 0.312" O.D., 303 Stainless Woodruff Key -- A 9X49-0310
0.0938" Wide, 0.375" O.D., 303 Stainless Woodruff Key -- A 9X49-0312
0.0938" Wide, 0.5" O.D., 303 Stainless Woodruff Key -- A 9X49-0316
0.0938" Wide, 0.625" O.D., 303 Stainless Woodruff Key -- A 9X49-0320
0.125" Wide X 0.125" Height X 0.5" Long Carbon steel machine key -- A 9C39-0416
0.125" Wide X 0.125" Height X 0.75" Long Carbon steel machine key -- A 9C39-0424
0.125" Wide X 0.125" Height X 1" Long Carbon steel machine key -- A 9C39-0432
0.125" Wide X 0.125" Height X 1.25" Long Carbon steel machine key -- A 9C39-0440
0.125" Wide X 0.125" Height X 1.5" Long Carbon steel machine key -- A 9C39-0448
0.125" Wide X 0.125" Height X 1.75" Long Carbon steel machine key -- A 9C39-0456
0.125" Wide X 0.125" Height X 2" Long Carbon steel machine key -- A 9C39-0464
0.125" Wide, 0.375" O.D., 303 Stainless Woodruff Key -- A 9X49-0412
0.125" Wide, 0.5" O.D., 303 Stainless Woodruff Key -- A 9X49-0416
0.125" Wide, 0.625" O.D., 303 Stainless Woodruff Key -- A 9X49-0420
0.1563" Wide, 0.625" O.D., 303 Stainless Woodruff Key -- A 9X49-0520
0.187" Wide, 0.750" O.D., 303 Stainless Woodruff Key -- A 9X49-0624
0.1875" Wide X 0.1875" Height X 0.5" Long Carbon steel machine key -- A 9C39-0616
0.1875" Wide X 0.1875" Height X 0.75" Long Carbon steel machine key -- A 9C39-0624
0.1875" Wide X 0.1875" Height X 1" Long Carbon steel machine key -- A 9C39-0632
0.1875" Wide X 0.1875" Height X 1.25" Long Carbon steel machine key -- A 9C39-0640
0.1875" Wide X 0.1875" Height X 1.5" Long Carbon steel machine key -- A 9C39-0648
0.1875" Wide X 0.1875" Height X 1.75" Long Carbon steel machine key -- A 9C39-0656
0.1875" Wide X 0.1875" Height X 2" Long Carbon steel machine key -- A 9C39-0664
0.1875" Wide X 0.1875" Height X 2.25" Long Carbon steel machine key -- A 9C39-0672
0.1875" Wide X 0.1875" Height X 2.5" Long Carbon steel machine key -- A 9C39-0680
0.25" Wide X 0.25" Height X 0.5" Long Carbon steel machine key -- A 9C39-0816
0.25" Wide X 0.25" Height X 0.75" Long Carbon steel machine key -- A 9C39-0824
0.25" Wide X 0.25" Height X 1" Long Carbon steel machine key -- A 9C39-0832
0.25" Wide X 0.25" Height X 1.25" Long Carbon steel machine key -- A 9C39-0840
0.25" Wide X 0.25" Height X 1.5" Long Carbon steel machine key -- A 9C39-0848
0.25" Wide X 0.25" Height X 1.75" Long Carbon steel machine key -- A 9C39-0856
0.25" Wide X 0.25" Height X 2" Long Carbon steel machine key -- A 9C39-0864
0.25" Wide X 0.25" Height X 2.25" Long Carbon steel machine key -- A 9C39-0872
0.25" Wide X 0.25" Height X 2.5" Long Carbon steel machine key -- A 9C39-0880
0.25" Wide X 0.25" Height X 2.75" Long Carbon steel machine key -- A 9C39-0888
0.250" Wide, 1.00" O.D., 303 Stainless Woodruff Key -- A 9X49-0832
1.5mm Wide, 7mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M01507
1/16 (W) X 1/16 (H), Carbon steel key stock -- A 9C40-0212
1/2 (W) X 1/4 (H), Carbon steel key stock -- A 9C40-D812
1/4 (W) X 1/4 (H), 300 Series Stainless Steel Key Stock -- A 9X40-0812
1/4 (W) X 1/4 (H), Brass key stock -- A 9B40-0812
1/4 (W) X 1/4 (H), Carbon steel key stock -- A 9C40-0812
1/8 (W) X 1/8 (H), 300 Series Stainless Steel Key Stock -- A 9X40-0412
1/8 (W) X 1/8 (H), Brass key stock -- A 9B40-0412
1/8 (W) X 1/8 (H), Carbon steel key stock -- A 9C40-0412
10mm Wide, 32mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M10032
10mm Wide, 45mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M10045
10mm wide BY 8mm Height, 25mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M100825
10mm wide BY 8mm Height, 28mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M100828
10mm wide BY 8mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M100836
10mm wide BY 8mm Height, 45mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M100845
10mm wide BY 8mm Height, 56mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M100856
12mm wide BY 8mm Height, 28mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M120828
12mm wide BY 8mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M120836
12mm wide BY 8mm Height, 45mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M120845
12mm wide BY 8mm Height, 56mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M120856
12mm wide BY 8mm Height, 63mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M120863
14mm wide BY 9mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M140936
14mm wide BY 9mm Height, 45mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M140945
14mm wide BY 9mm Height, 56mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M140956
14mm wide BY 9mm Height, 63mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M140963
16mm wide BY 10mm Height, 56mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M161056
16mm wide BY 10mm Height, 63mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M161063
2.5mm Wide, 10mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M02510
2mm Wide, 10mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M02010
2mm Wide, 13mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M02013
2mm Wide, 7mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M02007
3/16 (W) X 3/16 (H), 300 Series Stainless Steel Key Stock -- A 9X40-0612
3/16 (W) X 3/16 (H), Brass key stock -- A 9B40-0612
3/16 (W) X 3/16 (H), Carbon steel key stock -- A 9C40-0612
3/32 (W) X 3/32 (H), Carbon steel key stock -- A 9C40-0312
3/8 (W) X 1/4 (H), Carbon steel key stock -- A 9C40-B812
3mm Wide, 10mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M03010
3mm Wide, 13mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M03013
3mm Wide, 16mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M03016
3mm Wide, 19mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M03019
3mm wide BY 3mm Height, 10mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030310
3mm wide BY 3mm Height, 14mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030314
3mm wide BY 3mm Height, 20mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030320
3mm wide BY 3mm Height, 25mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030325
3mm wide BY 3mm Height, 6mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030306
3mm wide BY 3mm Height, 8mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M030308
4mm Wide, 13mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M04013
4mm Wide, 16mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M04016
4mm Wide, 19mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M04019
4mm Wide, 22mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M04022
4mm wide BY 4mm Height, 10mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040410
4mm wide BY 4mm Height, 14mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040414
4mm wide BY 4mm Height, 16mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040416
4mm wide BY 4mm Height, 20mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040420
4mm wide BY 4mm Height, 25mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040425
4mm wide BY 4mm Height, 8mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M040408
5/16 (W) X 1/4 (H), Carbon steel key stock -- A 9C40-A812
5/32 (W) X 5/32 (H), Carbon steel key stock -- A 9C40-0512
5mm Wide, 16mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M05016
5mm Wide, 19mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M05019
5mm Wide, 22mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M05022
5mm Wide, 25mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M05025
5mm wide BY 5mm Height, 10mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050510
5mm wide BY 5mm Height, 14mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050514
5mm wide BY 5mm Height, 16mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050516
5mm wide BY 5mm Height, 20mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050520
5mm wide BY 5mm Height, 25mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050525
5mm wide BY 5mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M050536
6mm Wide, 22mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M06022
6mm Wide, 25mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M06025
6mm Wide, 28mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M06028
6mm wide BY 6mm Height, 10mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060610
6mm wide BY 6mm Height, 14mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060614
6mm wide BY 6mm Height, 16mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060616
6mm wide BY 6mm Height, 20mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060620
6mm wide BY 6mm Height, 28mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060628
6mm wide BY 6mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M060636
7/16 (W) X 1/4 (H), Carbon steel key stock -- A 9C40-C812
7/32 (W) X 7/32 (H), Carbon steel key stock -- A 9C40-0712
8mm Wide, 28mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M08028
8mm Wide, 32mm O.D., Carbon steel Woodruff key (DIN 6888) -- A 9C49M08032
8mm wide BY 7mm Height, 10mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080710
8mm wide BY 7mm Height, 16mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080716
8mm wide BY 7mm Height, 20mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080720
8mm wide BY 7mm Height, 25mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080725
8mm wide BY 7mm Height, 36mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080736
8mm wide BY 7mm Height, 45mm Long Carbon steel machine key (per DIN 6885A) -- A 9C39M080745
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