Grade 4 Nylon Lock Nuts Material: Q235 carbon steelStrength Grade: Grade 4Surface Treatment: Electro-galvanizedThread Specifications: M5, M8, M10, M16, M18, M24 (standard stock, all compliant with DIN 985) Product Description A Grade 4 nylon lock nut is a hex nut with an embedded nylon ring; the ‘Grade 4’ denotes its strength grade. Its key advantage…

Grade 4 Flange Nuts Material: Q235 high-quality carbon steelStrength Grade: Grade 4Surface Treatment: Electro-galvanizedThread Specifications: M6, M8, M10, M12, M16, M20, M22, M24 (Regular stock available, compatible with all sizes of steel structure bolts) Product Details This product is a Grade 4 national standard flange nut, an integrated washer-equipped nut specifically designed for steel structures….

Grade 4 Hexagon Nut Material: Carbon Steel Q235Strength Grade: Grade 4Surface Treatment: Electro-galvanizedSpecifications: M6-M10, M12-M24Standards: DIN934 (German Standard) Product Description Grade 4 hexagonal nuts are general-purpose fasteners widely used in industrial assembly, construction projects and the hardware supply sector. Thanks to their key advantages—compliance with standards, consistent performance, excellent value for money and broad compatibility—they…

Grade 4 Flat Washers Material: Carbon steel Q235Strength Grade: Grade 4Surface Treatment: Electro-galvanizedSpecifications: M6, M8, M10, M12, M16 (compatible with corresponding 4.8 grade bolts)Standards: DIN125 (German Standard), GB97.1 (Chinese Standard) Product Details This product is an essential accessory for 4.8 grade bolts. It’s a fundamental flat washer for steel structure auxiliary connections, manufactured to dual…

8.8 Hex Bolts Grade 8.8 high-strength, fully threaded, coarse-threaded metric hexagon head boltsProduct Specifications : M610-100、M820-110、M1030-120、M1230-120、M1435-150、M1630-150、M1840-160、M2040-160、M2250-160、M2460-250 Product Description Grade 8.8 hexagon head bolts are the standard type of high-strength bolts, characterised by a tensile strength of ≥800 MPa and a yield strength of ≥640 MPa; they achieve a balance between strength and toughness through quenching…

8.8 Socket head bolt Material: 35CrMo alloy steel / 45# carbon steelStrength Grade: 8.8Surface Treatment: Blackening, Electro-galvanizing (optional)Thread Specifications: M6 M8 M10 M12 M16 M20 M24 (Regular stock, all sizes conforming to DIN912)Testing Standards: Tensile strength, yield strength, hardness, and thread precision all meet DIN912 and national standards. Product Description 8.8 Socket head bolts are…

8.8 Double-Ended Studs Strength Grade : 8.8Structural features : Fully threaded at both ends, with a smooth shank (or fully threaded) in the middle; no headThread Specifications: M6, M8, M10, M12, M16 (Regular stock, all sizes available)Manufacturing process : Cold heading → Heat treatment (quenching + tempering) → Thread cutting → Surface treatment Product Description…

Grade 8 Spring Washers Material : Strength Grade : Surface Treatment : Thread Specifications :

Grade 8 Hexagon Nut Material: Carbon steel 45#Strength Grade: 8.8Surface Treatment: Electro-galvanizedThread Specifications: M8, M10, M12, M16, M20 (Regular stock, all specifications)Standards: DIN933 (German Standard), GB5783 (Chinese Standard) Product Details This product is a “basic necessity” for steel structure projects. It is an 8.8 grade medium-high strength fully threaded hex bolt, manufactured strictly according to…

Grade 8 Flat Washers Material: 65Mn spring steelStrength Grade: Grade 8Surface Treatment: Electro-galvanized/Hot-dip galvanized (optional)Specifications: M8 M10 M12 M16 M20 M22 M24 (suitable for corresponding bolts)Standards: DIN125 (flat washers), DIN127 (spring washers), GB93 (Chinese Standard) Product Details This product is an essential accessory for steel structure bolts, available in flat washers and spring washers. Both…

Electro-galvanized Threaded Rod Material: Q235 high-quality carbon steelSurface Treatment: Electro-galvanizedThread Specifications: M6, M8, M10, M12, M16, M20, M24 (Regular stock available, lengths 1m/2m/3m optional, can be cut)Testing Standards: Thread accuracy, dimensional tolerances, and hardness all meet the requirements of national standard GB/T 15389 Product Details This product is a national standard Q235 carbon steel electro-galvanized…

Pin shaft Material: Q195 high-quality carbon steelStyle: Flat head pin, round head pin (optional)Surface Treatment: Natural color, electro-galvanized (optional)Specifications: Φ4 Φ6 Φ8 Φ10 Φ12 Φ16 Φ20 Φ24 (Regular stock available, length can be customized)Testing Standards: Dimensional tolerances, outer diameter accuracy, and shear strength all meet national standards. Product Details This product is a Q195 carbon…

Cotter pin Material : Q195 high-quality carbon steelSurface Treatment : Electro-galvanizedSpecifications : Φ1 Φ2 Φ3 Φ4 Φ5 Φ6 Φ8 Φ10 (Regular stock available, lengths can be customized)Testing Standards : Dimensional tolerances, elasticity, and surface smoothness all meet the requirements of national standard GB/T 91. Product Details This product is a standard Q195 carbon steel cotter…

Square Washers Material: Carbon steel Q235Surface Treatment: Hot-dip galvanizedSpecifications: M16, M20, M22, M24 (compatible with corresponding 10.9S bolts)Compatible Standard: National Standard GB1228-1231 Product Details This product is a dedicated accessory for steel structure main frames, a perfect partner for high-strength bolts. Specifically designed for steel structure joint connections, its unique ingot-shaped design perfectly conforms to…