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HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. 

About Company

Main Product

fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Bolts, Nuts, Washers, Threaded Rods, Anchors, Screws Custom Fasteners, OEM, ODM 
Alias
 
Model / Specification
 
Country of Origin
CHINA 
Surface Treatment
 
Material
 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN931 DIN933 Hex Bolt with Black Oxide & High Tensile 
Alias
Hexagon head bolt 
Model / Specification
DIN931 / DIN933 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
High Tensile Yellow Zinc Plated YZP DIN6921 Hex Flange Bolt 
Alias
Hexagon head bolt with flange 
Model / Specification
DIN6921 Flange Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN912 Allen Bolt With Black Surface & High Tensile 
Alias
Hexagon Socket Cup Head Bolt 
Model / Specification
High Tensile Black Oxide DIN912 Allen Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
ASME A325 Hex Heavy Structural Bolts 
Alias
Hex Heavy Bolts 
Model / Specification
ASME A325 Hex Heavy Structural Bolts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Black Oxide High Tensile DIN934 Hex Nut 
Alias
Hexagon Nut 
Model / Specification
DIN934 Hex Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN982 DIN985 Nyloc Nut With Stainless Steel Material & Nylon Piece Insert 
Alias
Nylon Inset Nut 
Model / Specification
Stainless Steel DIN982 DIN985 Nyloc Nut 
Country of Origin
CHINA 
Surface Treatment
Plain 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN975 Threaded Rods With Black Oxide & High Tensile 
Alias
Threaded Bar 
Model / Specification
DIN975 Threaded Rods 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
A193 B7 
Alias
 
Model / Specification
A193 B7 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
B7 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Solar Hanger Bolts 
Alias
 
Model / Specification
Solar Hanger Bolts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
Stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN25201 Nord-Lock With Dacromet Surface 
Alias
Double Fold Self Lock Washer 
Model / Specification
DIN25201 Nord-Lock 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
High Tensile Zinc Plated ZP DIN931 DIN933 Hex bolt 
Alias
Hexagon head bolt 
Model / Specification
DIN931 / DIN933 Hex Bolt 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stainless Steel DIN912 Allen Bolt 
Alias
Hexagon Socket Cup Head Bolt 
Model / Specification
Stainless Steel DIN912 Allen Bolt 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN603 Carriage Bolt With Black Surface & High Tensile 
Alias
Coach Bolt / Mushroom Head Square Neck Bolt 
Model / Specification
High Tensile Black Oxide DIN603 Carriage Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN3570 U Bolt 
Alias
u type bolt 
Model / Specification
DIN3570 U Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
High Tensile ISO7380 Button Head Hex Socket Screw Bolt 
Alias
/ 
Model / Specification
Black Oxide High Tensile ISO7380 Button Head Hex Socket Screw Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Set Screw Grub Screw 
Alias
Grub Screw 
Model / Specification
DIN914 DIN915 DIN916 Set Screw 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stainless Steel A2-70 A4-70 A4-80 DIN934 Hex Nut 
Alias
Hexagon Nut 
Model / Specification
DIN934 Hex Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN982 DIN985 Nyloc Nut With Zinc Plated & Nylon Piece Insert 
Alias
Nylon Inset Nut 
Model / Specification
DIN982 DIN985 Nyloc Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN6923 Flange Nut 
Alias
Hex Nut With Flange Pad 
Model / Specification
DIN6923 Flange Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN980M All Metal Insert Lock Nut 
Alias
 
Model / Specification
DIN980M All Metal Insert Lock Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN6334 Hex Coupling Nut With Stainless Steel Material 
Alias
Long Hex Nut 
Model / Specification
DIN6334 Hex Coupling Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN6334 Hex Coupling Nut With Zinc Plated Surface & High Tensile 
Alias
Long Hex Nut 
Model / Specification
DIN6334 Hex Coupling Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN935 Castle Nuts With Stainless Steel Material 
Alias
Slotted Nut 
Model / Specification
DIN935 Castle Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN935 Castle Nuts With Black Oxide Surface & High Tensile 
Alias
Slotted Nut 
Model / Specification
DIN935 Castle Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN935 Castle Nuts With Zinc Plated Surface & High Tensile 
Alias
Slotted Nut 
Model / Specification
DIN935 Castle Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN1587 Acorn Nuts With Stainless Steel Material 
Alias
Cap Nuts 
Model / Specification
DIN1587 Acorn Nuts 
Country of Origin
CHINA 
Surface Treatment
Plain 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN577 Square Nuts 
Alias
 
Model / Specification
DIN577 Square Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN315 Butterfly Wing Nut 
Alias
 
Model / Specification
DIN315 Butterfly Wing Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN7340 Rivet Nuts 
Alias
Rivets 
Model / Specification
DIN7340 Rivet Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Cage Nuts 
Alias
 
Model / Specification
Cage Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN928 Square Weld Nut With Stainless Steel Material 
Alias
 
Model / Specification
DIN928 Square Weld Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN929 Hex Weld Nut 
Alias
 
Model / Specification
DIN929 Hex Weld Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN975 Threaded Rods With Zinc Plated & High Tensile 
Alias
Threaded Bar 
Model / Specification
DIN975 Threaded Rods 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN975 Threaded Rods With Stainless Steel Material 
Alias
Threaded Bar 
Model / Specification
DIN975 Threaded Rods 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN975 Threaded Rods With HDG Surface & High Tensile 
Alias
Threaded Bar 
Model / Specification
DIN975 Threaded Rods 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stud Bolts 
Alias
 
Model / Specification
Stud Bolts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN125 Flat Washer With Black Oxide Surface & High Tensile 
Alias
Plain Washer 
Model / Specification
DIN125 Flat Washer 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN125 Flat Washer With HDG Surface & High Tensile 
Alias
Plain Washer 
Model / Specification
DIN125 Flat Washer 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN127 Spring Washer With Black Oxide Surface 
Alias
 
Model / Specification
DIN127 Spring Washer 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN127 Spring Washer With Zinc Plated 
Alias
 
Model / Specification
DIN127 Spring Washer 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN127 Spring Washer With Stainless Steel Materia 
Alias
 
Model / Specification
DIN127 Spring Washer 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN25201 Nord-Lock 
Alias
Double Fold Self Lock Washer 
Model / Specification
DIN25201 Nord-Lock 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Wedge Anchor Bolts 
Alias
 
Model / Specification
Wedge Anchor Bolts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Wall Plug 
Alias
 
Model / Specification
Wall Plug 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
High Tensile HDG DIN931 DIN933 Hex bolt 
Alias
Hexagon head bolt 
Model / Specification
DIN931 / DIN933 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stainless Steel DIN931 DIN933 Hex Bolt 
Alias
Hexagon head bolt 
Model / Specification
DIN931 / DIN933 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stainless Steel A2-70 A4-70 A4-80 SS201 SS304 SS316 DIN6921 Flange Bolt 
Alias
Hexagon head bolt with flange 
Model / Specification
Stainless Steel A2-70 A4-70 A4-80 SS201 SS304 SS316 DIN6921 Flange Bolt 
Country of Origin
CHINA 
Surface Treatment
black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Stainless Steel A2-70 A4-70 A4-80 SS201 SS304 SS316 DIN603 Carriage Bolt Coach Bolt 
Alias
Coach Bolt / Mushroom Head Square Neck Bolt 
Model / Specification
Stainless Steel A2-70 A4-70 A4-80 SS201 SS304 SS316 DIN603 Carriage Bolt Coach Bolt 
Country of Origin
CHINA 
Surface Treatment
Plain 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN934 Hex Nuts With Zinc Plated Surface & High Tensile 
Alias
Hexagon Nut 
Model / Specification
DIN934 Hex Nut 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN934 Hex Nuts With HDG Surface & High Tensile 
Alias
Hexagon Nut 
Model / Specification
High Tensile HDG DIN934 Hex Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
T Nuts 
Alias
 
Model / Specification
T Nuts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN125 Flat Washers With Stainless Steel Material 
Alias
Plain Washer 
Model / Specification
DIN125 Flat Washers 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
DIN6798 Serrated Lock Washers 
Alias
 
Model / Specification
DIN6798 Serrated Lock Washers 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
Chemical Anchor Bolts 
Alias
 
Model / Specification
Chemical Anchor Bolts 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, Plain, etc. 
Material
carbon steel, stainless steel 
fastener-world(HEBEI CHENGYI ENGINEERING MATERIALS CO., LTD. )
High Tensile Zinc Plated ZP DIN6921 Flange bolt 
Alias
Hexagon head bolt with flange 
Model / Specification
High Tensile Zinc Plated ZP DIN6921 Flange Bolt 
Country of Origin
CHINA 
Surface Treatment
Black oxide, ZP, HDG, Dacromet, etc. 
Material
carbon steel, stainless steel