Heavy-duty bright steel spike with a smooth round shank, flat head for striking, and a sharp diamond point. The bright (uncoated) finish is intended for general utility work where surface coating is not required - use galvanized or coated spikes for permanent exterior installs that need rust resistance.

• Material: Bright (uncoated) carbon steel
• Head: Flat for striking
• Point: Diamond
• Shank: Smooth round
• Size: 5/16" x 10"
• Pack: 50 Lb Box (approx. 150 spikes)
• Manufacturer part number: 10405010

Tip: Drive flush or set just below the timber face with a nail set; an exposed spike head rusts faster on bright steel and can catch a string trimmer line.

For stacking two layers of 4x4 landscape timber or driving through a 6x6 with extra depth for ground hold. The added length spans the joint between courses.