#4-40 Coarse Thread Nyloc (Nylon Insert Locknut) NM Standard Low Carbon Steel Zinc Plated Pk 100

PRODUCT SPECIFICATIONS Part #: 0000-101995 Fastener Type: Nyloc (Nylon Insert Locknut) NM Standard Size Description: #4-40 Diameter/Nominal Size: #4 Thread Pitch: 40 Thread Pitch Type: Coarse Thread Direction: Right System of Measurement: Inch Grade: 2 Material: Low Carbon Steel Finish: Zinc Plated Drive Type: External Hex Used with: Bolts/Screws up to Grade 5 Average Piece Weight: 0.0014600 lbs. Lock nuts resist loosening of the screw under vibration or force to prevent loosening from a bolted joint. Types of lock nuts are prevailing torque nuts (Stover) elastic stop nuts (Nyloc) serrated flange (whiz lock) 2-way (reversible) star lock (KEPS) and many others.