Heico Unalloyed Steel Delta Protect Wedge Lock Washers, M4, 7.6mm External Diameter, 1.7mm Thickness, Grade A4, RoHS H-HLS-4

Heico H-HLS-4 Unalloyed Steel Delta Protect Wedge Lock Washers are engineered to provide reliable anti-vibration locking performance in demanding bolted joint applications. Manufactured in Germany, these washers feature a wedge lock design that uses preload force instead of friction to secure fastenings, ensuring superior joint integrity even under dynamic loads.

The washers are crafted from high-quality unalloyed steel with a durable Delta Protect finish, offering excellent corrosion resistance. They are designed to fit M4 compatible screws or bolts with an external diameter of 7.6mm, inside diameter of 4.4mm, and a thickness of 1.7mm. Grade A4 construction assures the product's strength and reusability without degradation over time.

These washers are pre-assembled pairs, simplifying installation and removal processes, and suitable for use with or without lubricants. Their robust design makes them optimal for use across various industrial sectors, including automotive assemblies, mechanical engineering projects, railway infrastructure, wind energy technology, as well as agriculture and forestry machinery.

Wedge lock mechanism provides anti-vibration security. Reusable with no loss of function or quality. Compatible with dynamic loads and lubricants. Manufactured from unalloyed steel with Delta Protect finish. Conforms to RoHS environmental standards.

Pre-assembled pairs for ease of use. Grade A4 ensures durability and reliability. Designed and made in Germany.

This Heico washer model H-HLS-4 is an excellent choice for industrial fastening solutions requiring high performance and reliability. Browse the EnvMart catalogue for related fastening and locking solutions optimized for your mechanical and structural needs.