Product Description
Finish：Plain, Black oxide , Zinc Electroplating,Hot Dip Galvanizing,Copper plating,Nickel plating,Zinc impregnation,ETC.
Material：Carbon steel、Stainless steel
Grade：4.8，8.8, 10.9, 12.9
Standard ：GB, DIN, ISO, ANSI/ASTM, BS, JIS,ETC.
Non-standards：OEM is available, according to drawing or samples.
Samples：Samples are free.
Package：Wooden boxes, pallet, cartons, plastic bags, nylon bags.
Description
DIN7991 Hexagon Socket Countersunk Head Cap Screws are engineered for applications requiring a clean, flush surface after fastening. The countersunk flat head design sits flush with the material surface, making these screws ideal for precision assemblies, machinery, tools, and architectural components.
These screws are tightened using an internal hex socket drive, offering secure, tamper-resistant fastening in both structural and aesthetic installations. Manufactured from carbon steel or stainless steel, these fasteners are available in multiple strength grades—4.8, 8.8, 10.9, and 12.9—to meet diverse performance demands.
Choose from a wide range of surface finishes, including plain, black oxide, zinc electroplating, hot dip galvanizing, copper plating, nickel plating, and zinc impregnation, offering enhanced corrosion protection and visual appeal.
Specifications:
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Standard: DIN7991 (compatible with GB, ISO, ANSI/ASTM, BS, JIS, etc.)
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Material: Carbon Steel, Stainless Steel
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Grades: 4.8, 8.8, 10.9, 12.9
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Finish Options: Plain, Black Oxide, Zinc Electroplating, Hot Dip Galvanizing, Copper Plating, Nickel Plating, Zinc Impregnation
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Applications: Machinery, automotive, electronics, metalwork, furniture, aerospace
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OEM Customization: Available per drawings or samples
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Samples: Free samples provided
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Packaging: Wooden boxes, pallets, cartons, plastic bags, nylon bags
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