ZT68 High-Strength Aluminum Alloy Bolt (Cold-Formed 7-Series, 600 MPa)
The ZT68 High-Strength Aluminum Alloy Bolt is cold-headed from 7-series aluminum alloy and heat-treated to reach a tensile strength of 600 MPa — a level previously achievable only with steel fasteners. Because the aluminum alloy weighs roughly one third of steel, replacing steel bolts with ZT68 removes significant mass from moving and weight-critical assemblies without sacrificing clamping performance.
Cold forming aligns the metal grain flow along the bolt contour, so the head-to-shank transition carries load more predictably than machined alternatives. A hard-anodized finish builds a dense oxide layer that resists galvanic-friendly corrosion, salt spray and handling wear, and can be specified in different colors for visual identification.
The bolt is produced on multi-station cold-heading lines with full dimensional control of thread, head and shank geometry, and supports non-standard customization against customer drawings with rapid sampling.
Designed for new-energy vehicle battery structures and body lightweighting, low-altitude aircraft and drone airframes, humanoid robots and embodied-intelligence equipment, and high-end consumer and industrial electronics where aluminum housings demand a same-material, galvanic-compatible fastener.
