P/N: MS20500-428
ENGINE LOCK NUT, 1/4-28
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| Approval | Industry Standard |
| Condition | New |
| Manufacturer | Hardware |
| Unit of Measure | Each |
| Retail Price | $3.76 |
| Your Price | $2.87 Free Shipping on Orders over $500 |
| Stock Status | In Stock |
| Approval | Industry Standard |
| Condition | New |
| Manufacturer | Hardware |
| Unit of Measure | Each |
| Retail Price | $3.76 |
| Your Price | $2.87 Free Shipping on Orders over $500 |
| Stock Status | In Stock |
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Supersedures
| OEM Part Number | McFarlane Part Number | Comment |
|---|---|---|
| 643967 | MS20500-428 |
Product Details
FAA-PMA approved for Continental and Lycoming engines
Save money and get an enhanced product with McFarlane Stainless Steel Exhaust Nuts and Studs! A heat-treated, high-strength stainless alloy improvement, these studs are nitrocarburized Black Max™ coated for additional corrosion protection and resistance to galling. The studs are tap-end studs that come in various oversized options for use on Continental and Lycoming engines.
- Lasts much longer! Save $$$ and labor!
- Less stress on the exhaust flanges and gaskets as the engine heats up and cools down
- Studs are nitrocarburized Black Max™ coating to resist galling and corrosion
- Black Max™ prevents galvanic corrosion between stainless and aluminum cylinder
Stainless steel vs. alloy steel: is it worth the money?
Written by Dave McFarlane, Founder
Why choose McFarlane?
OUR PARTS ARE ENGINEERED TO LAST LONGER WHILE SOLVING KNOWN SAFETY ISSUES
OVER 40,000 PARTS IN STOCK WITH SAME DAY SHIPPING IF ORDERED BY 3PM
OUR TEAM PROVIDES THE OLD-FASHIONED CUSTOMER SERVICE THAT YOU EXPECT
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