[b]I MAKE A MISTAKE (NUTS ASTM - A-563 GR. A OR B)[/b] 1

[JOHN1978]

Greetings from Peru.

Hi, my name is John Altamirano; I am Mechanical Engineer.
I have a problem and it's about Nuts.

I need some help.
I have to buy Hexagonal Nuts ASTM A-563 Grade A (5/8", 3/4", 1") and Grade B (1/2").
After looking at the local market. I found there aren't Nuts with those features.

I would like to know if there are equivalents to those nuts for buying them instead the first ones
because I just need few pieces of these. And I am not thinking to buy them abroad.
I thanks anyone who can help to solve my problem.
And I will appreciate if you can answer my question as soon as it can be.


John Altamirano A.
Dpto. Compras
FIMA S.A. - PERÚ
(051-1) 452-2212 (270)

http://www.fimaperu.com

 

[unclesyd]

Check your post concerning the hex bolts.
The specifications you call out are for nuts generally used on water pipe flanges and not on structural components. Grades A & B are used only on A307 or A449 bolts.
A307 bolting with A563 Grade A & B nuts is the only one specification that covers your sizes.

If you could add a little more information to either post as to the end use you could get a more difinitive answer.

 

[LuizSouza]

John1978
You can try use ASTM A-163, instead of A-563, also I've enclosed some specs from my company PETROBRAS OIL, that I workk for, in portuguese language I hope u understand.

PARAFUSO ESTOJO; ACO LIGA; ESPEC ASTM A193 GR B7; ROSCA
CONTINUA ASME B1.1 UNC-2A; C/ DUAS PORCAS SEXTAVADAS, TIPO
PESADA; PADR ANSI B18.2.2; ACO CARBONO; ESPEC ASTM A 194 GR 2H; CADMIADO
ASTM B766 CL 8 TP II, BICROMATIZADO AMARELO BRILHANTE(PARAFUSO E PORCA);

Luiz Souza
Brazil
luizhenrique_99@yahoo.com

 

[Cockroach]

This is an unusual material specification for an oil company. Perhaps ASTM A193-B7 or B7M studs and ASTM A194-2H or 2HM would be easier.

Certainly from LuizSouza, line(s) 1 and 3 call this out according to the API Specification. I would tend to agree.

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada