1. fine threads
2. coarse threads
3. coefficient of friction > tangent of load angle
4. hole for inserting split pin
coefficient of friction > tangent of load angle
1. metric threads of 33nos in 2 cm.
2. metric threads with cross-section of 33 mm
3. metric threads of 33 mm outside diameter and 2 mm pitch
4. bolt of 33 mm nominal diameter having 2 threads per cm
metric threads of 33 mm outside diameter and 2 mm pitch
1. similar to small size tap bolts except that a greater variety of shapes of heads are available
2. slotted for a screw driver and generally used with a nut
3. used to prevent relative motion be-tween two parts
4. similar to stud
slotted for a screw driver and generally used with a nut
1. thickness of plates to be riveted
2. length of rivet
3. diameter of head
4. nominal diameter
nominal diameter
1. bolts
2. keys
3. cotters
4. rivets
rivets
1. d
2. 1.25 d
3. 1.5 d
4. 1.75 d
1.5 d
1. 0.2
2. 0.25
3. 0.50
4. 0.6
0.25
1. tensile strength
2. compressive strength
3. shear strength
4. bending strength
tensile strength
1. one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
2. a slot is cut partly in middle of nut and then slot reduced by tightening a screw
3. a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
4. through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter split and bent in reverse direction at other end
one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
1. same
2. coarser
3. finer
4. very coarse
same