4340 A low carbon, high manganese, high nickel, and high molybdenum steel. This is a premium material that is suitable for most applications. It offers a higher degree of ductility in comparison to 300M.
***SOLD IN PAIRS***
Specs:
• 4340 material • Gun drilled option 7/8″ ID hole bored entire length of axle • 40 spline with 45° pressure angle on both ends • Involuted splines provide full surface contact area • Major machining performed before heat treat • Ensures consistent hardness & ductility • Thru hardening maximizes material's torsional strength • Shaft finished machined after heat treat to eliminate runout • Spirolox prevents axle from shifting • Black oxide finish to resist corrosion
USD : 92.69
WASHING INSTRUCTIONS:
Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer
Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.
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