Description
A pack of five M4 nylon insert lock nuts, 5.5mm in height, from Kyosho's universal hardware range.
A nylon insert nut has a collar of nylon moulded into its top. As the screw threads on it cuts into that nylon, and the friction created is what stops the nut backing off under vibration. M4 nuts appear where loads are high, which on most cars means wheel nuts, engine mounts and main chassis fixings, and those are exactly the positions where a fastener working loose has serious consequences.
They are consumable by design. Every removal and refit cuts the nylon further, and after a few cycles a nut that spins on by hand has stopped doing its job. Reusing tired lock nuts is how a wheel comes off mid-run, which is the one failure that ends a race and often the car with it.
The 5.5mm height includes the nylon collar, so check clearance where space is tight.
Five are supplied. Given how cheap they are relative to what they hold on, replacing rather than reusing is the sensible policy. This supersedes the older Kyosho number 1179.
Shipping & Return
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Shipping to the Contiguous United States (excludes Alaska and Hawaii)
As an added benefit, customers in the continental United States can also take advantage of our economical Basic Economy shipping option which offers FREE Shipping on orders over $75 is automatically offered at checkout. If your order does not reach the $75 threshold for free shipping, we offer Flat Rate $3.99 Shipping.
NOTE: Free shipping is only available when shipping to an address in the Contiguous United States, this excludes Alaska, Hawaii and Puerto Rico.
Shipping to Alaska, Hawaii, Puerto Rico, Guam, and All International Addresses
Basic Economy Free Shipping is not available to residents of Alaska, Hawaii, Puerto Rico, Guam, and international. Customers in these locations will be charged the actual computed shipping rate at the time of checkout.
Customs Fee for International orders:
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Ordering Processing Time
- All orders are shipped within 24hrs. M-Sat.
RETURNS:
- We accept returns within 30 days of purchase.
- Returns must be in it's original condition.
- Buyer is responsible for return fees.
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