General application bolts threaded rods and bent bolts b flange joints and fittings for pipe application heavy hex bolts.
Grade 8 threaded rod fastenal.
The threads per inch tpi also varies on the diameter of the rod as follows.
Un8 threaded rods this.
A head with no markings is grade 2 one with 3 lines spaced 120 degrees is grade 5 and 6 lines spaced at 60 degree intervals is grade 8.
Sae grade 8 screws are marked on the top of their heads the exceptions being small under about 1 4 slotted and recessed head fasteners where there is insufficient room for head markings.
This the unified coarse thread series with 8 threads per inch.
Grade 8 bolts and fasteners are comprised of carbon alloy steel heat treated in a carbon controlled atmosphere and are generally the most durable and reliable fastener.
Fine threaded rods also known as unf unrf this threading is used when higher tensile strengths are needed.
Is not on the sae classification but is similar in strength to grade 1 or 2 on the sae scale.
This is a low strength grade.
2020 weaver distributing 10705 west orchard yakima washington 98908 phone.
Common finishes include plain black zinc plated and hot dip galvanized for grades 2 and 5.
Threaded rods used in plumbing contracting and maintenance applications threaded rods are used to join together and stabilize objects and structures made of wood metal and concrete.
Sae threaded rods do not require permanent grade markings on the ends of the rods like many astm specifications do.
They are susceptible to cross threading and are generally stronger than coarse threads.
Fastenal express items in stock at your local branch will be ready.
Grade 8 steel threaded rods are about 25 stronger than medium strength steel rods.
Grade 8 is typically provided plain finish only due to the potential risk of hydrogen embrittlement when plated or galvanized.
Rod diameter threads per inch.
Grade 8 bolts have the highest ratings with tensile strength of 150 000 psi.
Fastenal express items in stock at your local branch will be ready for pickup within 1 hour during normal business hours.
509 966 8030 toll free.
Zinc yellow chromate plated steel threaded rods resist corrosion in wet environments.
Our grade 8 threaded rods vary in length from 10 to 52 depending on the diameter of the rod.
Black oxide steel threaded rods have a dark surface color and are corrosion resistant in dry environments.
