We provide high-quality fasteners according to the standards of DIN, ISO, ANSI/ASME, IFI, ASTM, BS, AS/NZS, JIS, KS as well as special fasteners at customers requirement. At present, our products include bolts, nuts, washers, and threaded rods covering 4 series and 30 categories. Materials involve carbon steel, alloy steel, stainless steel, etc. Under the collaboration of the staff and with years of experience in marketing, our products enjoy ready markets in United States, Europe, Australia, South-east Asia and other Pacific countries and regions and are well-appreciated by the customers.
Screw in Grade 12.9, 10.9 and 8.8 & SS Screw
DIN912/GB70 Hexagon socket head cap screws
DIN931~933/GB5782~5783 Hexagon head screws
DIN7991 Hexagon socket countersunk head screws
ISO7380 Hexagon socket button head screws
ISO7379 Hexagon socket head shoulder screws
DIN916-45H Alloy Steel hex Socket Head Set Screw
It is a company specialized in production and sales of Carbon steel spheroidizing annealing wire, Alloy steel spheroidizing annealing wire, rivet wire, bright wire. The products are mainly applied in the down stream customers like the suppliers of precision electronic screw, building screws, auto-car fasteners, rivets, precision springs and various Precision Machinery Elements etc.
EF has ten years’ experience of fastener production and sales, and our products are mainly exported to the United States, Canada and South America.
Since 2014, EF began the production and sales of special parts, such as machining parts, stamping parts, casting parts, forging parts and other non-standard products. Material covers copper, aluminum, plastic, rubber, carbon steel, stainless steel, alloy steel etc., and the products are mainly sold to North America and Europe.
Our registered head marking are ‘ EF’ and ‘01XG’, which can be used around the globe.
In September 2017, EF moved to Beilun district, with a big warehouse. It helps long-term customers to stock spare parts inventory to meet their split deliveries. Meanwhile, we can also do some special packing for customers in warehouse.
EF has passed the ISO9001-2015 system certification
Welcome new and old customers to visit our company.
We manufacturer both standard fasteners and special fasteners. Special fasteners are mainly for automotive, truck and construction and agricultural equipment. Our products are screws, bolts, nuts, washers and anchors in carbon and alloy steel and stainless steel, in metric and inch, according to GB, DIN, ISO, ANSI, BS, AS, JIS or customer drawings. Our turnover is about $50 million USD and 65% are export to America, Europe and other countries. 35% are for domestic sales to both commercial and automotive sectors.
The staple products for Dongrui are serial Multi-Station Cold Upsetting Formers, and the products are protected by many patents. Dongrui products are with complete range of specifications and stable quality which have been sold to everywhere in China and exported to America, Europe, the Middle East and South East Asia etc. in the world. Dongrui products are trusted by customers both at home and abroad.
The company has passed through the certifications of ISO 9001:2008 quality management system and CE safety regulation, it has several sets of big size machine centers and a lot of advanced mechanized equipment made in China or imported from abroad, it also has a Technological Development Center at provincial level. The research and development ability and level of Dongrui company always plays a leading role at the fields of same trade in China, due to aiming at high standard and thanks to advanced inspection technique applied through whole production procedure, therefore the quality of Dongrui machines can be reliably guaranteed.
Product Application Field:
All types of electrical appliances, electronic products, computers, mobile phones, communication terminals, furniture, automobiles, motorcycles, toys, lighting, sound boxes, horologes, instruments, cameras, mechanical equipments, construction installation and etc.
The main categories of products:
Fasteners: various kinds of precision of machine screws, self tapping screws, triangle screw, screw, bolts, nuts (nut products: Lock nut, wing nut, rivet nut, self locking nut), rivets, washers, spring, lathe type (non-standard).
Machining parts: precision stampings, shaft core, pneumatic fittings, CNC computer lathe.
Fastening pieces categories:
Precision Machine screw, Drilling Screw, triangle screw, Combinational screw, Bolts category, Nut category, Rivet category, Washers category, Spring category and Lathe parts category (non-standard items).
Mechanical Processing Parts categories:
Precision Stamping Category, Mandrel Category, Pneumatic Fittings Category and CNC Lathe Category.
Main Materials of products:
Carbon steel (low carbon steel, medium carbon steel, high carbon steel and spring steel), stainless steel (SUS201 SUS202 SUS302 SUS303 SUS304 SUS316 SUS416), alloy steel, Zinc Aluminum Alloy, free-cutting iron, aluminum, copper, plastic, PVC, bakelite, nylon and etc.
Manufacturing standards of products:
Our main manufacturing standards of products are ISO, GB, JIS, DIN, BS, ANSI and corporate standards (customers providing drawings).
Surface-treatment of products:
trivalent zinc( white, blue, black, yellow, color),nickel, copper plating nickel, copper plating, gilt, silver plating, chrome plating, ancient copper plating, gold imitation, common , high-temperature, rust, head spray-painting, surface staining and NYLOK treatment. The products are in complaint with ROHS and SONY standard, also with Third-party certification testing such as SGS report.
Our Strength: high quality, rapid distribution, competitive prices and first class services.
Our mission To provide our customers with first class service in the supply of quality fasteners and industrial components while minimizing costs through the integration of people, technology and experience.
The company mainly engaged in wire rod with the diameter of 2 - 42 with processing, sales of finished wire:
Cold heading steel alloy with a diameter of 5.5 mm, with a diameter of 40 SCM415, SCM420, SCM435, SCM440, B7, ML20CRMO, ML35CrMO, ML42CrMO, ML20MnTiB, 10B18, 10B21, 10B28, 10B30, 10B33, 10B38, ML20CrMnTi, 30crmnti, Baoshan, Xing Gang
5.5 - Phi Phi 40 tool steel of Baosteel 50BV30, Xing steel,
Bearing steel with 5.5 - 40 GCr15 diameter Xingtai steel, Baosteel, Dalian special steel
The hard line with the diameter of 5.5 - 40 40# diameter, 45#, 65#, 70#, 80#,
High carbon steel with a diameter of 5.5 mm, with a diameter of 40 SWRH42B, SWRH47B, SWRH72B, SWRH77B, S10C, S20C, S40C, S50C, Baoshan, Xing Gang
Prestressed steel wire diameter 5.5 - 40 SWRH82A, SWRH82B, 87B with Baosteel, Xing Gang
Copper clad steel wire with a diameter of 5.5 mm, with a diameter of 40 SWRM6, SWRM10, SWRM12, SWRM15, XGM2 of baosteel,
Spring steel with the diameter of 5.5 - 40 65Mn, 60Si2MnA, 55SiCr with 60Si2CrVAT, Baosteel, Xing steel,
With the diameter of 5.5 - 40 16MNCR5 diameter steel gear of baosteel,
Carbon cold heading steel with the diameter of 5.5 - 40 SWRCH6A, SWRCH10A, Phi SWRCH18A, SWRCH22A, ML08AL, ML10AL, SWRCH10K, SWRCH15K, SWRCH20K, SWRCH35K, SWRCH40K, SWRCH45K, SWRCH50K, SAE1010, SAE1012, SAE1015, SAE1020, SAE1022, SAE1035, SAE1045, Baoshan, Xing Gang
Another of the company's monthly order 8620 is often wire and other special line of high-end cold heading 20CRNIMO GB, 8620, 25CR2MOV, 40CRMOV4-6, 18CRNIMO7-6, 40CRNIMO, S10C, S12C, 16MNCR5, SCM435, 20#, S20C, ML15, ML10, ML35, 20MNTIB, SWRCH10A, SWRCH22A, SWRCH18A, 17CR3, 20CR, SCM420, SCM440, 4140. GCR15, 100CR6 and other high-end cars, standing with a diameter of 5.5-40, processing the ball drawing specifications for cold heading line diameter 0.5-40. if your company required materials list is listed above, please inquire. Our company is a special dealer. All materials are from Baosteel Baosteel warehouse straight Germany Duies also booking treasure, South Korea Pohang, Taiwan steel, Kobe steel, Japan imported materials, welcome calls from the stock and the latest price list.
Specialized in manufacturing DIN, IFI, JIS, AS and various non-standard fasteners
Classified by use: automobile, machinery, engineering, electronic, railway, home application, furniture and so on
Classified by grade: (IFI and ASEM)2, 5, 8, 10;
(DIN)4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9, 12.9
Classified by material: plain carbon steel, alloy steel, stainless steel, copper, aluminum and plastic
Main products: bolt, screw, threaded rod, stud, nut, washer, rivet, pin, nail and key.