{"product_id":"mcmaster-90576a117-medium-strength-steel-nylon-insert-locknut-zinc-plated-m8-x-1-25-mm-thread-size-pack-of-100","title":"McMaster 90576A117 Medium-Strength Steel Nylon-Insert Locknut, Zinc Plated, M8 x 1.25 mm Thread Size, Pack of 100","description":"\u003cp\u003eVersatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.\u003c\/p\u003e\u003cp\u003eMedium-Strength Steel—These Grade 5, Grade C, or Class 8 nuts are your go-to for fastening most machinery and equipment. 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