Spear Bots & Sockets

SPEAR BOTS & SOCKETS

Spear bolts and the accompanying cast-in sockets fulfill the same function as curved bolts (permanently fix tunnel segments)whilst being easier to install.

A major advantage of the spear bolt is that following installation only one pocket per bolt requires finishing.

They are used to enable efficient erection of tunnel segments

COMPLETE RANGE AMAILABLE

HuiBo Railway manufacture a complete range of spear bolts and sockets from M16 to M30 diameter
Lengths can be made to suit customers requirement
We encourage enquiries and drawings for Custmization of bolts and fittings.

STRENGTH GRADES

Both mild steel 4.6 and high tensile 8.8 grades are availabla

Other grades available upon application

FINISHES

Spear boltscan be supplied in galvanised and sherardised as standard finishes
Other finishes available to suit customer requirements
Pull out data for plastic sockets isavailable upon request