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A394 Tower Bolt

A394 TOWER BOLT


We stock and manufacture A394 Tower and Step Bolts that meet all ASTM Specifications. We can custom manufacture any size step bolt to any type of A394 bolt you require. 

Lengths: diameters ranging from 1/2″ to 1″ and to any length 

Types/Grades: 
     • Type 0 – Hot Dipped Zinc coated bolts made of low or medium carbon steel 
     • Type 1 – Hot Dipped Zinc coated bolts made of medium carbon steel, quenched and tempered
     • Type 2 – Withdrawn in 2005
     • Type 3 – Bare (not coated), quenched and tempered bolts made of weathering steel 

The most common tower bolt is Type 1 

Recommended Nuts:
Unless otherwise specified, all nuts on these bolts are hex style and conform to the requirements for specification A563. 

Recommended Washers: 
     • Suitable washers for use with Type ) are hot-dipped zinc coated carbon steel washers with dimensions that are in accordance with Specification F436. 
     • Suitable washers for use with Type 1 bolts are hot-dipped zinc coated Type 1 hardened steel washers that are in accordance with Specification F436
     • Suitable washers for use with Type 3 bolts are Type 3 hardened steel washers that are in accordance with Specification F436 

We can supply tower and step bolts that will pass Charpy V-Notch testing.