Bend the pointed end in the same manner and in the same direction as the eye, having the distance between the eye and the angle 4 inches, as shown in sketch _F_. Now heat this end and cool the extreme corner of the angle to prevent its straightening, then form the hook to the dimensions given in the sketch.
Heat the central portion of the square metal to an even cherry red; hold the hook and 1 inch of the square portion securely in the vise; then grasp the other end with the tongs or wrench 2 inches from the vise, and revolve it once, thus forming a twist of the proper length. Before cooling this work, see that the eye and hook are parallel and the body of the hook is perfectly straight.
=73. Door Hasp.=—Fig. 53. Drawing, forging, punching, cutting, and bending. Material required: 7 inches of 1 × 3/16-inch mild steel.
Mark lightly with the hardy on the edges 1 inch and 3-1/4 inches from one end, as at _a_. Form shoulders at these marks with edge-to-edge blows, as shown at _b_, so that the metal between them may be drawn to smaller dimensions. The shoulders should be formed not deeper than 1/8 inch at first, and the metal between them should be drawn to a corresponding dimension. Then forge the 1-inch end into a round eye, as at _c_, and punch a 5/16-inch hole in its center, as shown at _d_. Now draw the metal between the eye and the shoulders to exact dimensions, 3 inches long, 5/8 inch wide, and 3/16 inch thick, as shown at _d_.
[Illustration: FIG. 53.—STEPS IN MAKING A DOOR HASP.]
Mark the other end in the same manner 2-1/2 inches from the shoulders, and form new shoulders at these marks with edge-to-edge blows. Draw the metal to a length of 2-1/8 inches, making it 5/8 × 3/16 inch at the shoulders and 1/2 × 1/8 inch at the end; the extreme end should be forged round. Sketch _E_ shows these operations completed.
Locate the center of the 2-1/2-inch length; from that point place a center-punch mark 7/8 inch each side of the center and punch a 5/16-inch hole at each mark with a hand punch, by placing the outer edge of the punch at the center-punch mark. Deliver no blows on the edges of this metal after the holes are punched.
Using a sharp, hot cutter, remove the metal between the holes, by cutting it equally from both sides, thus forming the slot as indicated by the broken lines in sketch _E_. By placing it over the hardy, straighten the metal which forms the sides of this slot, and all other portions, so that all edges will be straight and parallel to each other. Smooth all flat surfaces with a flatter, using water to remove the scale of oxide. If the marking and punching of the holes have been carefully done, the inside length of the slot will now be 2 inches.