Duratech Survey Spike – 6″ Smooth Brite Steel Duratech 6″ survey spikes are durable, smooth, bright steel spikes designed for reliable marking and staking in surveying, construction, and utility applications. Their bright finish ensures easy visibility on site while resisting rust and corrosion for long-lasting performance. Supplied in 50 lb boxes, each box contains approximately 525 spikes, making them ideal for crews needing high-volume, dependable field markers. Key Features • 6″ length – ideal for standard field marking and staking • Smooth, bright steel construction – durable and corrosion-resistant • Easy to drive into soil, gravel, or soft surfaces • Supplied in 50 lb boxes (≈525 spikes) for efficient deployment • Suitable for a variety of surveying, construction, and utility tasks