1/2" Belleville Washer - A Zinc Plated Belleville Washer that resists vibration and temperature cycling for critical equipment terminations.1/2" Belleville Washers features include: Belleville Washer features conical pressure locking design Zinc Plated Order Qty of 100 = 1 Box of 100 Pieces Below is more info on our 1/2" Belleville Washers