100 Qty: C.S.Osborne & Co. No. 6860-OBS 1/2 - Old Brass Speckled Nail/Post :1/2" Head: 7/16" (mpn# 13704) No. 6860-OBS 1/2 - Old Brass Head diameter is approximately 7/16". post lengths: 1/2" 100 QTY