Duratech Survey Spike – 10″ Smooth Brite Steel Duratech 10″ survey spikes are heavy-duty, bright steel spikes designed for reliable field marking and staking. Their smooth, corrosion-resistant finish provides high visibility and long-lasting durability in surveying, construction, and utility tasks. Supplied in 50 lb boxes, each box contains approximately 155 spikes, providing the right quantity for larger stakes or deeper ground applications. Key Features • 10″ length – stable and highly visible for various terrain types • Smooth, bright steel construction – corrosion-resistant for extended use • Easy to drive into soil, gravel, or soft surfaces • Supplied in 50 lb boxes (≈155 spikes) for efficient deployment • Ideal for surveying, construction, and utility marking