SATO RACING Store › Jam Nut M6 [JNT-6] Image 1 of 1 Jam Nut M6 [JNT-6] $1.75 Stainless steel M6-size Jam Nut (part# JNT-6) for use with SATO RACING Rear Sets. Right-hand threaded. Get notified by email when this item is in stock again. Quantity: Add To Cart Added! Stainless steel M6-size Jam Nut (part# JNT-6) for use with SATO RACING Rear Sets. Right-hand threaded.