In 1755, having risen to be a mate, Cook joined the Royal Navy, and after four years' service was, on the recommendation of Sir Hugh Palliser, his commander, appointed master successively of the sloop Grampus, of the Garland and of the Solebay, in the last of which he served in the St. Lawrence.
Tap Bolt vs Cap Screw. What is the difference between a tap bolt and a cap screw? A tap bolt is (typically) a fully threaded hex bolt, while a cap screw is (typically) a hex head bolt that will be installed by turning the head of the bolt (screw) instead of tightening it with a nut.
1 and 3/8-inch x 1-1/2-inch bolts cold headed, rolled thread; and 1/h-inch and 3/8-inch cold punched, hexagon nuts. /. 2  The machine bolt which has a partly or fully threaded shank is most often. used in conjunction with square or hexagon nuts. The major parts of a bolt. are the head and the shank. The shank is the body of the bolt upon which the.