TITANIUM Quill Stem Draw Bolt 6/4 Titanium. 6 mm socket heads are specifically machined to 12 mm diameter to work with all vintage and modern quill stems with M8 draw bolt. All bolts include washer. The washer is designed to fit under the head of the bolt and is made from stainless steel. BOLT SIZE: M8 BOLT MATERIAL: 6/4 TITANIUM, MACHINED FINISH BOLT LENGTH: 230 mm WASHER MATERIAL: Stainless steel SOCKET HEAD: 6 mm hex SOCKET HEAD OD: 12 mm THREAD LENGTH: 128 mm THREAD PITCH: 1.25 coarse BOLT WEIGHT: 47.3g WEDGE WEIGHT: 13g WEDGE MATERIAL: ALUMINUM, SAND BLASTED FINISH (OPTIONAL) WEDGE SIZE: 21.8 mm for 1" forks (OPTIONAL) CONE SIZE: 19.2 mm for 1" forks ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------