DIN6921 Steel Galvanized Hex Flange Washer Head Bolt

Product Name: hex flange bolts
Material: Stainless steel / Carbon steel / Copper / Aluminum / Alloy steel
Size: M6-M16; 1/4"-5/8"; according to the drawing
Grade: SAE J429 Gr.2,5; A307 Gr.A / 4.8, 8.8
Surface Treatment: Plain, Black, Zinc-plated, HDG

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Details

Metric Hex Flange Bolt (DIN 6921) (ANSI B1.1 UNC, UNF)

DIN 6921 Class 8.8	DIN 6921 Class 8.8	DIN 6921 Class 12.9
Material: 10B21/AISI 1035	Material: Alloy Steel AISI 4135	Material: Alloy Steel AISI 4135
Tensile Strength: Min 800 MPa	Tensile Strength: Min 1040 MPa	Tensile Strength: Min 1220 MPa
Core Hardness: HRC 22~32	Core Hardness: HRC 32~39	Core Hardness: HRC 39~44
Class of Thread: M5 through M16, 6g	Class of Thread: M5 through M16, 6g	Class of Thread: M5 through M16, 6g

DIN6921 Hexagon Flange Bolts also referred to as flange head bolts or frame bolts, represent a critical element in numerous industries and applications. These specialized bolts incorporate a built-in flange beneath the head, which provides an expanded load-bearing surface and obviates the necessity for separate washers. This distinctive design imparts several benefits, including enhanced stability, improved force distribution, and increased resistance to loosening caused by vibrations. Additionally, the flange serves as a protective barrier, inhibiting the ingress of dirt, moisture, and other contaminants into the joint, thereby ensuring an extended lifespan for both the bolt and the assembled components. DIN6921 Hexagon Flange Bolts are prevalent in automotive, construction, and industrial domains, where reliability, strength, and ease of installation are paramount. Whether securing structural beams, machinery, or automotive components, these bolts deliver a dependable and efficient solution.