Order this PRO-FIT 2-3/8 in. (8D) Vinyl Coated Sinker for delivery. Coating: Vinyl coated for interior use. Code: Made to conform to ASTM F1669. Applications: Designed for use in construction, carpentry, and framing. Head Style: Checkered, flat, countersunk head offers a large striking point that keeps the hammer from slipping. Shank Style: Smooth shank provides excellent holding power and are fast and easy to drive. Point Type: Diamond point starts fast and drives easily. Length: Nails are 2-3/8 in.