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

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