A selection of fasteners commonly applicable to the construction and maintenance of sound and related equipment, including application specific hardware for such purposes as connector and panel mounting.
Terminology:
Nuts
| Full: |
Ordinary nut |
| Half: |
Half thickness nut |
| Nyloc: |
With nylon locking collar |
Special screws
| Selftap: |
Self tapping screw |
|
Type AB has pointed end (ISO type C) |
|
Type B has flat end (ISO type F) |
| Plasform: |
Plasform screw (self-cuts thread in plastics) |
| Taptite: |
Taptite screw (cuts thread in metals) |
Screw heads
| Hex: |
Hexagonal |
| Pozi: |
“Pozidrive” style recess head |
| Slotted |
Slotted head |
| Csk: |
Countersunk head |
| Rsd. csk: |
Raised countersunk head |
| Pan: |
Pan head |
| Rnd: |
Round head |
| Fillister: |
Small “cheese” head, used for some connectors |
| Button: |
Rounded head with hex recess |
| Cap: |
Cheese head with hex recess |
| Hex: |
Hexagonal bolt head |
| Flange: |
Round head with flange |
Materials
| MS: |
Mild steel |
| HMS: |
Hardened mild steel |
| ZCP: |
Zinc plated, clear passivated |
| CB: |
Chemical black |
| BNP: |
Bright nickel plated |
| SZ: |
Silver/zinc plated |
| SC: |
Self-coloured (unplated) |
Lengths given for metric fasteners are as measured conventionally. The lengths of imperial fasteners, where given in metric units, have been rounded to the nearest mm.