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The chain end ranges from 18 to 30 inches (46 to 76 cm) long and has a snap or clip on the end that attaches to the halter, and a ring on the other end that is attached to the lead line. [2] Some lead lines are permanently sewn to the chain shank, others have buckles or clips allowing the chain to be removed.
There are two main types of clevis pins: threaded and unthreaded. Unthreaded clevis pins have a domed head at one end and a cross-hole at the other end. A cotter pin (US usage) or split pin is used to keep the clevis pin in place. Threaded clevis pins have a partially threaded shank on one end and a formed head on the other.
An anchor secured to the ship's side. The projecting beam the anchor hangs from when not secured is a cathead (left). The anchor has a stock (cross-piece, in this case wooden) below, and curved flukes above (end-on); the shank is the near-vertical metal bar running between them, lashed with the shank painter Cathead on bow of the barque James Craig; the cat tail protrudes onto the deck and is ...
Square head cap screws up to and including 3 ⁄ 4 inch (19.05 mm) have a head 1 ⁄ 8 inch (3.175 mm) larger than the shank; screws larger than 3 ⁄ 4 inch (19.05 mm) have a head 1 ⁄ 4 inch (6.35 mm) larger than the shank. [9] In 1919, Dyke defined them as screws that are threaded all the way to the head. [10] socket screw
The blind end may be either countersunk ('flush') or dome-shaped. One early form of blind rivet that was the first to be widely used for aircraft construction and repair was the Cherry friction-lock rivet. Originally, Cherry friction locks were available in two styles, hollow shank pull-through and self-plugging types.
A 14 mm shank similar to SDS-plus, designed for hammers from 2 to 5 kg. The grip area is increased to 212 mm 2 (0.329 sq in) and the shank is inserted 70 mm. This size remained uncommon and was discontinued in 2009. [5] SDS-max An 18 mm shank with three open grooves and locking segments rather than balls. It is designed for hammers over 5 kg.
All anchors should have chain at least equal to the boat's length. [clarification needed] Some skippers prefer an all chain warp for greater security on coral or sharp edged rock bottoms. The chain should be shackled to the warp through a steel eye or spliced to the chain using a chain splice. The shackle pin should be securely wired or moused.
Halters are often plain in design, used as working equipment on a daily basis. In addition to the halter, a lead line, lead shank or lead rope is required to actually lead or tie the animal. It is most often attached to the halter at a point under the jaw, or less often, at the cheek, usually with a snap, but occasionally spliced directly onto ...