Spacer terminology and codes

Spacer terminology and codes

=Mounting length
m1 =Female thread diameter
l1 =Female thread diameter length
m2 =Male screw diameter
l2 =Male screw mounting length
s =Incomplete thread section Incomplete thread sections are manufactured with 2 ridges according to JIS standard within pitch x 1.5.

Thread pitches are manufactured according to metric coarse thread standards.

Standard type spacer
A TYPE B TYPE C TYPE

Female-female, hexagonal

Female-female, round type

Male screw/Female threadHexagonal

Male screw/Female threadRound type

Hollow tube(Pipe)