BINDING
CHEESE
PAN
BUTTON
FLAT
SOCKET
FLANGE
COUNTER-SUNK
HEXAGONAL
KNURLED
DOME
and many more
ACME
HI LOW
SELF TAPPING
FORMING TYPE
DOUBLE START
TRIPLE START
TRILOBULAR
MACHINE
3.6
4.6
4.8
5.6
5.8
6.8
8.8
9.8
10.9
12.9
MILD STEEL
ALLOY STEEL
BORON STEEL
STAINLESS STEEL
BRASS
A2C
A2K
A3B
A3C/A3K
DSP
ZNT
A3C+L/A2R
THERMAL BLACKENING
VZD
FE/ZN8/CN/T2
ZN5/CN/TO
THROUGH HARDENING
CARBON NITRIDING
CARBURISING
ANNEALING
NORMALISING
