ForgeFix FPNYLOC4 Nyloc Nuts & Washers Zinc Plated M4 ForgePack 50

ForgeFix-Nyloc-Nuts-Washers-Zinc-Plated-ForgeFix-FPNYLOC4-p-The-Forgefix-Nyloc-Hexagonal-Nuts-incorporates-a-nylon-component-to-effectively-lock-the-nut-into-position-on-the-bolt-p-p-The-nylon-component-has-a-smaller-inside-diameter-than-the-actual-nut-This-locks-the-nut-in-place-by-squeezing-the-nylon-firmly-around-the-bolt-when-tightened-Unlike-a-standard-locking-washer-the-Nyloc-nut-prevents-the-nut-from-loosening-under-vibration-as-the-nylon-is-tightly-wedged-into-the-bolt-thre

Price: 2.81 from Rapid Online Rapid Electronics Ltd.