These HT Bolts ZP GR8.8, 3/8UNCX2.1/2" are engineered for strength and reliability, ideal for heavy-duty applications. Featuring a zinc-plated finish, they offer enhanced corrosion resistance. The Grade 8.8 classification ensures superior tensile strength, making them perfect for construction and industrial use. Designed to fit 3/8" UNC threads, these bolts provide secure fastening in demanding environments.