We specialize in manufacturing all kinds of stainless steel and high strength fasteners with an annual output of more than 25,000 M/T. We manufacture according to a number of internationally recognized standards including DIN, ANSI/ASTM, BS, JIS, GB etc.
Our products are broadly used in automobiles, major engineering projects, mechanical engineering, , petrochemical engineering, buildings, vessels, bridges, metallurgy, environmental protection and so on. With a perfect quality system we have obtained ISO 9001, TS 16949 and TSG Z0004 certificates and we have also gained the standard enterprise license for work safety. We are currently establishing certification to ISO14000.

Socket Head Series

Flat Countersunk Head Cap Screws (Carbon Steel,Alloy Steel,Stainless Steel)
Diameter: M4~M36(8#~1 1/2'')
Length: 6-1000mm
Property Class: ISO898: 8.8 ~ 12.9; ASTM F835, F835M, F879, F879M


Socket Head Cap Screws (Carbon Steel, Alloy Steel, Stainless Steel)
Diameter: M4 ~ M100 (1/4 ~ 4'')
Length: 6-300mm
Property Class: ISO898:8.8 ~ 12.9; ASTM A574, A574M, F837, F837M

Hex Socket/Torx Button Head Cap Screws (Carbon Steel, Alloy Steel, Stainless Steel)
Diameter: M4 ~ M24 (8# ~ 1'')
Length: 6-200mm
Property Class: ISO898: 4.6-12.9, ASTM F835, F835M, F879, F879M

HEX HEAD SERIES

Material: Carbon Steel, Alloy Steel, Stainless Steel
Diameter: M4~M100 (8# ~ 4'')
Length:6-1000mm
Property Class:
Steel: ISO898: 4.6 ~ 12.9; ASTM A307, A354, A449, SAE J429 Gr.2~Gr.8
Stainless Steel: ISO3506: A2 (50 ~ 80), A4 (50 ~ 80), C1, C3, ASTM F593, F594, F738M

STEEL STRUCTURAL SERIES

Heavy Hex Series
Diameter: M12 ~ M36 (1/2 ~ 1 1/2'')
Length：25-1000mm
Property Class：ISO898: 8.8 ~ 10.9; GB1231: 8.8S, 10.9S, JIS 1186; EN 14399; ASTM A325/A325M, A490/A490M

Tension Control Structural Series
Diameter: M12 ~ M36 (1/2 ~ 1 1/2'')
Length：25-1000mm
Property Class：GB3632: 10.9S; ASTM F1852, JSSⅡ-09

Welding Studs
Diameter: M12~M24（1/2~1”）
Length: 30-500mm
Property Class：ISO898:4.6; ASTM A307

HIGH TEMPERATURE AND PRESSURE SERIES

Property Class:
Steel: ISO898: 5.6 ~ 12.9; ASTM A193: B6, B7, B16, B7M; ASTM A320: L7, L7M; SH3404, HG20613, HG20634，DIN267-T13
Stainless Steel: ISO3506: A2 (50 ~ 80), A4 (50 ~ 80), C1, C3; ASTM A193/A320: B8(CL1A ~ CL2B),B8M(CL1A ~ CL2B),B8T(CL1A~CL2);
ASTM A453; DIN267-T13

Thread Bars (Carbon Steel, Alloy Steel, Stainless Steel)
Diameter: M5 ~ M100 (10# ~4'')
Length： 6-6000mm

Double Ends Stud Bolts (Carbon Steel, Alloy Steel, Stainless Steel)
Diameter：M4 ~ M100 (8# ~ 4'')
Length： 6-6000mm

Hex Bolts, Heavy Hex Bolts (Carbon Steel, Alloy Steel, Stainless Steel)
Diameter: M10 ~ M100 (3/8 ~ 4'')
Length： 6-1000mm

SELF-TAPPING SCREWS AND WOOD SCREWS

Self-Tapping Screws
Diameter: St2.2 ~ 24 (4# ~ 1'')
Length： 9.5 ~200mm (3/8 ~ 8'')
Material： Carbon Steel, Alloy Steel （ISO2702; SAE J933, J81, J78）, Stainless Steel

Wood Screws

Diameter: 2.5 ~ 24 （3# ~ 1''）
Length： 9.5 ~ 200mm (3/8 ~ 8'')
Material： Carbon Steel, Alloy Steel, Stainless Steel

SET SCREWS

Diameter: M4 ~ M24 (10#~1'')
Length：4 ~ 150 (0.159 ~ 6'')
End Point: Cone Point, Truncated Cone Point, Cup Point, Short Dog Point, Long Dog Point, Short Dog Point with Rounded End,
Short Dog Point with Truncated Cone End
Material: Carbon Steel, Alloy Steel(ISO898-5, ASTM F912, F912M), Stainless Steel (ISO3506, ASTM F880, F880M）

NUTS

Diameter: M10 ~ M100(3/8 ~ 4'')
Property Class:
Steel: ISO898:4 ~ 12; A194/A194M:2.2H, 2HM,3,4,6,7,7M,16;ASTM A563, A563M
Stainless Steel: ISO3506: A2(50 ~ 80), A4(50 ~ 80), C1, C3;ASTM A194/A194M:8,8A,8M, 8MA,8T,8TA;ASTM F593/F593M

CARRIAGE BOLTS,PLOW BOLTS

Diameter: M5 ~ M24 ( 10# ~ 1'')
Property Class:
Steel: ISO898:4.6 ~ 10.9; ASTM A307, A354, A449, SAE J429 Gr.2 ~ Gr.8
Stainless Steel: ISO3506: A2(50 ~ 80), A4(50 ~ 80), C1, C3;ASTM 593, F594, F738M

FASTENERS USED IN AUTOMOBILES AND OTHER VEHICLES

Diameter: M6~M36 ( 1/4 ~ 1 1/2'')
Length: 8 ~ 200mm(5/16 ~ 8'')
Property Class：ISO898: 8.8 ~ 12.9, ASTM A574, A574M, SAE J429 Gr.5 ~ Gr.8

SPECIAL DESIGNED FASTENERS

WIND POWER GENERATION EQUIPMENT

Diameter: M24~M36 ( 1 ~ 1 1/2'')
Property Class： ISO898: 5.6 ~ 12.9
Type: hex head, heavy hex head, socket head、double ends stud bolts

MAIN PROJECTS

Diameter: M14 ~ M56 (9/16 ~ 21/4'')
Property Class：ISO898: 5.6 ~ 12.9
Type: various types, special designed according to customers’ requirements