12 PCS Aluminum Crossbow Bolt 17" 2219 Completed w/ Nock Insert Tip Vanes Hunting Equipment Shaft Material: Aluminum Length: 17" OD: 8.8mm Weight: 26 g-27 g feathers: 4" plastic vanes Target point: 85gr steel Thread: #8-32 UNC, Changeable for broadhead stright degree:6/1000 In bulk package