Stainless Steel Hex Flange Bolt DIN 6921 Full Thread

Under the Wanluo manufacturer, we manufacture high-standard China Stainless Steel Hex Flange Bolt DIN 6921 Full Thread that comply with international standard specifications. If you are interested in our products, please feel free to contact us.

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Product Description

Adopting one-piece cold forging forming technology and rigorous in-process quality inspection, these Stainless Steel Hex Flange Bolt DIN 6921 Full Thread by Wanluo supplier integrate hex head and flange washer structure, featuring strong bearing capacity, anti-loosening performance and high installation efficiency, adapting to various precision equipment and outdoor engineering fastening scenarios. We support standard spot wholesale, non-standard size customization and large-batch bulk procurement to meet diversified global purchasing demands.

Product Advantages

This full-thread hex flange bolt is designed with an integrated flange face that eliminates the need for extra gaskets, dispersing pressing force effectively to prevent surface damage on mounted parts. Strictly finished with precision machining and standardized thread production, the bolt delivers stable mechanical strength and excellent fatigue resistance during long-term reciprocating vibration and heavy load operation. Multiple self-produced stainless steel grades ensure outstanding corrosion and high-temperature resistance, perfectly adapting to complex and harsh working conditions for long-term stable fastening.

Product Parameter

Parameter Item	Detailed Specification
Product Name	Stainless Steel Hex Flange Bolt, DIN 6921 Full Thread
Executive Standard	DIN 6921 Full Thread, Optional ISO, ANSI and GB Standard
Available Material	In Stock: 304, 316, 316L; Customizable: 904L, 310S, 2205, 2507 Duplex Stainless Steel; Carbon Steel 4.8/8.8/10.9 Available Supply
In-Stock Size Range	Metric M3-M36 conventional full thread sizes, non-standard length and flange size support OEM customization
Thread Type	Standard metric coarse thread, fine thread customizable for bulk orders
Surface Treatment	Pickling and passivation, optional electropolish and bright finish for anti-corrosion upgrade
Mechanical Properties	Stainless steel versions feature high tensile strength and stable toughness; carbon steel grades meet standard industrial mechanical requirements
Packaging Method	Inner plastic bag + export carton, pallet packaging for FCL shipment, private label OEM packaging available
Supply Service	Spot wholesale, personalized bulk customization, mixed fastener consolidated shipment and one-stop procurement service

Stainless Steel Hex Flange Bolt Din 6921 Full Thread

Thread Size d			M5	M6	M8	M10	M12	M14	M16	M20
P	Pitch	Coarse thread	0.8	1	1.25	1.5	1.75	2	2	2.5
		Fine thread-1	/	/	1	1.25	1.5	1.5	1.5	1.5
		Fine thread-2	/	/	/	1	1.25	/	/	/
b	Ref.	L≤125	16	18	22	26	30	34	38	46
		125<L≤200	/	/	28	32	36	40	44	52
		L>200	/	/	/	/	/	/	57	65
c	min		1	1.1	1.2	1.5	1.8	2.1	2.4	3
d_a	Form A	max	5.7	6.8	9.2	11.2	13.7	15.7	17.7	22.4
d_a	Form B	max	6.2	7.4	10	12.6	15.2	17.7	20.7	25.7
d_c	max		11.8	14.2	18	22.3	26.6	30.5	35	43
d_s	max		5	6	8	10	12	14	16	20
d_s	min		4.82	5.82	7.78	9.78	11.73	13.73	15.73	19.67
d_u	max		5.5	6.6	9	11	13.5	15.5	17.5	22
d_w	min		9.8	12.2	15.8	19.6	23.8	27.6	31.9	39.9
e	min		8.71	10.95	14.26	16.5	17.62	19.86	23.15	29.87
f	max		1.4	2	2	2	3	3	3	4
k	max		5.4	6.6	8.1	9.2	11.5	12.8	14.4	17.1
k₁	min		2	2.5	3.2	3.6	4.6	5.1	5.8	6.8
r₁	min		0.25	0.4	0.4	0.4	0.6	0.6	0.6	0.8
r₂	max		0.3	0.4	0.5	0.6	0.7	0.9	1	1.2
r₃	min		0.1	0.1	0.15	0.2	0.25	0.3	0.35	0.4
r₄	≈		3	3.4	4.3	4.3	6.4	6.4	6.4	8.5
s	max=nominal size		8	10	13	15	16	18	21	27
s	min		7.78	9.78	12.73	14.73	15.73	17.73	20.67	26.67
t	max		0.15	0.2	0.25	0.3	0.35	0.45	0.5	0.65
t	min		0.05	0.05	0.1	0.15	0.15	0.2	0.25	0.3

Product Feature And Application

1. Integrated cold forging one-piece molding makes this hex flange bolt feature solid structure and strong pressure resistance, effectively avoiding gasket displacement and loosening to ensure stable fastening under long-term vibration and load-bearing conditions.

2. Precision CNC thread rolling processing delivers standard and smooth threads with accurate tolerance, enabling tight fitting and repeated disassembly without thread slipping, ideal for precision mechanical and equipment assembly scenarios.

3. Self-produced multi-grade stainless steel materials provide excellent rust-proof and anti-corrosion performance, adapting to outdoor, coastal and humid working environments, while optional carbon steel styles satisfy cost-effective conventional engineering fastening needs.

4. Fine pickling and passivation surface treatment removes burrs and impurities, presenting a smooth and tidy surface with superior weather resistance, greatly improving the long-term service life of outdoor fixed facilities.

5. With complete standard specifications and flexible non-standard customization capabilities, this Stainless Steel Hex Flange Bolt DIN 6921 Full Thread with sufficient stock is a reliable universal fastening solution for machinery manufacturing, pipeline engineering, outdoor facilities and construction projects.

Stainless Steel Hex Flange Bolt Din 6921 Full Thread