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System of Measurement
Material
Tolerance Rating
Key Type
Length
Minimum Hardness
Specifications Met
DFARS Specialty Metals
Export Control Classification Number (ECCN)
REACH
RoHS
Machine Key Stock
Cut this square or rectangular key stock to length to create a straight machine key. Straight keys are the most common type of key. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
18-8 Stainless Steel
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18-8 stainless steel key stock offers a balance of strength and corrosion resistance. It may be mildly magnetic. 18-8 stainless steel key stock is more corrosion resistant than steel key stock.
Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
Tolerance, mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Ht. × Wd. | Tolerance Rating | Ht. | Wd. | Min. Hardness | Specs. Met | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
305 mm Long | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
7 mm × 8 mm | Oversized | 0.000 to 0.076 | 0.000 to 0.076 | Rockwell B82 | DIN 174 | 000000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
8 mm × 10 mm | Oversized | 0.000 to 0.076 | 0.000 to 0.076 | Rockwell B82 | DIN 174 | 000000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
9 mm × 14 mm | Oversized | 0.000 to 0.076 | 0.000 to 0.076 | Rockwell B82 | DIN 174 | 000000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||