A4-70 Bolt

A4 70 stainless steel fasteners & A4-70 heavy hex bolt suppliers in UAE

What size nut is A4 70?

Usually, the size range for an A4 70 is between M6 – M110 (Metric conversion) and 1/4″ – 4.5″ (inch).

A4-70 SS hex nut suppliers in UAE, check the difference between A4-70 hex bolt and allen bolt

A4-70 hex bolt vs allen bolt

Both A4-70 Allen bolts and A4-70 hex bolts look similar. But, the head of an A4-70 Allen bolt is depressed to permit the insertion of an Allen key to tighten the torque of the bolt. Compared to a A4-70 hex bolt, which is easier to loosen, Allen bolts form a permanent fastening. Since the torque of this bolt is set by the torque, unfastening them is possible by using the corresponding Allen key.

A4-70 Bolts types

All sizes available in ss grade A4 70 threaded rod with test certificates, check stainless steel A4 70 carriage bolt torque specification

What is the torque spec for A4-70 stainless steel fasteners?

The torque value for A4-70 stainless steel fasteners would depend on the size of its bolt or nut. For an A4-70 bolt sized 4-40, the corresponding torque value is 5.5 pounds.

Check price and application of stainless steel class A4-70 studs and stud bolt

Is A4-70 heavy hex bolt suitable for marine use?

These fasteners are usually preferred in applications that face space constraints. They have high mechanical strength and good resistance to seawater. Marine equipment faces strong currents every day, and if the equipment is submerged in water- tides could loosen fasteners gradually. Since A4-70 heavy hex bolt use an Allen key to be fastened, they have a high torque that makes them stable in a high-vibration environment like the sea.

Buy apl A4-70 hex head bolt at the lowest cost. Check online stainless steel grade A4 class 70 washer advantages and disadvantages

Advantages and disadvantages of A4-70 washer

High vibrations can stress out a bolt head in conditions that are not optimal for the fastener. A washer can help to evenly distribute the vibration in the bolt head, reducing tension. They may also be used as spacers and often protect the surface from damage during installation. Washers in general prolong the lifespan of an application. However, using an inferior washer could diminish its usefulness. Low alloy washers can quickly get corroded in marine environments, and it could quicken the corrosion of a bolt or equipment it is in contact with. It is important to choose the right alloy washers in an assembly.