Standard Nut Types
- Hex nut
- A six-sided nut
- Most commonly used
- Slotted/Castle Nut
- Slotted nuts are used in conjunction with a cotter/split pin on the drilled bolt to prevent loosening
- Slotted nuts are used in conjunction with a cotter/split pin on the drilled bolt to prevent loosening
- Wing Nuts
- One pick nut with two wings-180° apart
- Used in low torque applications that require frequent adjustments
- Nylon Insert Locknut
- A nut with a nylon insert to prevent backing off
- Also referred to as a "Nylock"
Why are washers used?
- To distribute the pressure of the bolt/nut evenly over the surface, so that the surface isn't damaged
- Lock washers secure fasteners that tend to rotate or lose friction
- Allows for a smooth surface to the screw to slide against as it is installed to make installation easier and more secure
Some standard washer types:
- Flat
- A flat washer, used to distribute load
- A flat washer, used to distribute load
- Slip Lock
- The most common style of washer
- Used to prevent nuts and bolt from backing out
- Internal Tooth Lock
- A washer with internal "teeth"
- Used to prevent nuts and bolts from backing out
- External Tooth Lock
- A washer with external "teeth"
- Used to prevent nuts and bolts from backing out