China manufacturer precise metal a325 galvanized heavy structural hex bolts with nuts

ASME B 18.2.1, DIN931, Din933, ISO4014, DIN6914,A307, A325,A449, A490,A354 GrBD, A193 B7

3/8''~2'' , M12-M50 (3/8'',1/2'',5/8'',3/4'', 1'', 1 1/2'',1 1/4'',13/4'',2'')

5/8''~20'', 16mm-500mm

carbon steel 45#, alloy steel, 40CR, 35CRMO, 42CRMO, 4140, BY,

Grade 2 / 5/ 8; CL4.8/CL8.8/ CL10.9/CL12.9;

black oxide, zinc plated (clear/blue/yellow) H.D.G., cadimun plated, nickle plated, dacromet, geomet ,teflon coated, chrome

with hex nuts and flat washer/ spring lock washer

bulk in cartons (25kg Max.)+ export Pallet or according to customer's requirement;

Caliper, Go&No-go gauge, Tensile test machine,  Hardness tester, Salt spraying tester,  H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter

500 tons per month

FOB/CIF/CFR/CNF/EXW/DDU/DDP

T/T, L/C , Western Union  ,MoneyGram ,paypal

South&north Amrica/Europe/East&South east Asia/ Australia and ect.