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QBH DIN6921 M5-M20 Blue White Zinc Plated / Black / Plain Carbon / Stainless Steel Serrated Flange Self-Locking Bolt

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Address: No.375,Tongle Road,Jiaxing City,Zhejiang Province,China

Contact name:Lance

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QBH DIN6921 M5-M20 Blue White Zinc Plated / Black / Plain Carbon / Stainless Steel Serrated Flange Self-Locking Bolt

Country/Region	china
City & Province	jiaxing zhejiang
Categories	Cup & Tumbler Holders

Product Details

QBH DIN6921 M5-M20 Blue White Zinc Plated / Black /

Plain Carbon / Stainless Steel Serrated Flange Self-locking Bolt

What's Self-locking Bolt ?

Flange bolt : flange bolt by hexagon head and flange (hexagon gasket and hexagon

fixed one) and screw (cylinder with external thread) two parts of the integral bolt,

need to be matched with the nut, used to fasten the connection of two through hole

parts, so the bolt connection is a detachable connection.

Flange type : according to the use of flange bolts in different positions, the size of the

disk requirements are different, and there are also flat bottom and tooth, tooth with

anti-slip effect.

Purpose

Flange bolt is composed of hexagonal head and flange plate, its "support area to stress

area word ratio" is greater than the ordinary bolt, so this bolt can bear higher preload,

anti-loose performance is also better, so it is widely used in automobile engines, heavy

machinery and other products.

Specifications

PRODUCT NAME	Self Locking Bolt - Serrated Flange Bolt
ITEM STANDARD	DIN6921, Others : ASTM , ANSI , JIS , EN , ISO, AS, IFI , GB , etc , Customized .
BRAND	QBH
WEB	https://www.steelnutbolts.com/
ITEM SIZE	M5-M20, Other Sizes : Customized
CLASS/GRADE	Carbon Steel : 4.8 , 5.8 , 6.8 , 8.8 , 10.9 , 12.9 , etc. Stainless Steel : SS304, SS316 , etc.
SURFACE TREATMENT	Plain/Black/Yellow Blue Zinc/Nickel/H.D.G. /Dacrmet/Gemet/Nickle Plated/Hot DIP Galvanizing , etc.
MATERIALS	Carbon Steel (CS) / Stainless Steel (SS) / Copper , etc.
PACKING	bulk/ boxes in cartons, bulk in polybags/ buckets, etc.
PALLET	solid wood pallet, plywood pallet, ton box/bag, etc.

Screw Thread
d

P	Pitch	Coarse thread
		Fine thread-1
		Fine thread-2
b	L≤125
	125＜L≤200
	L＞200
c	min
d_a	Form A	max
	Form B	max
d_c	max
d_s	max
	min
d_u	max
d_w	min
e	min
f	max
k	max
k₁	min
r₁	min
r₂	max
r₃	min
r₄	≈
s	max=nominal size
	min
t	max
	min

0.8	1	1.25	1.5	1.75	2	2	2.5
/	/	1	1.25	1.5	1.5	1.5	1.5
/	/	/	1	1.25	/	/	/
16	18	22	26	30	34	38	46
/	/	28	32	36	40	44	52
/	/	/	/	/	/	57	65
1	1.1	1.2	1.5	1.8	2.1	2.4	3
5.7	6.8	9.2	11.2	13.7	15.7	17.7	22.4
6.2	7.4	10	12.6	15.2	17.7	20.7	25.7
11.8	14.2	18	22.3	26.6	30.5	35	43
5	6	8	10	12	14	16	20
4.82	5.82	7.78	9.78	11.73	13.73	15.73	19.67
5.5	6.6	9	11	13.5	15.5	17.5	22
9.8	12.2	15.8	19.6	23.8	27.6	31.9	39.9
8.71	10.95	14.26	16.5	17.62	19.86	23.15	29.87
1.4	2	2	2	3	3	3	4
5.4	6.6	8.1	9.2	11.5	12.8	14.4	17.1
2	2.5	3.2	3.6	4.6	5.1	5.8	6.8
0.25	0.4	0.4	0.4	0.6	0.6	0.6	0.8
0.3	0.4	0.5	0.6	0.7	0.9	1	1.2
0.1	0.1	0.15	0.2	0.25	0.3	0.35	0.4
3	3.4	4.3	4.3	6.4	6.4	6.4	8.5
8	10	13	15	16	18	21	27
7.78	9.78	12.73	14.73	15.73	17.73	20.67	26.67
0.15	0.2	0.25	0.3	0.35	0.45	0.5	0.65
0.05	0.05	0.1	0.15	0.15	0.2	0.25	0.3

Length of Thread b

①,e min. = 1.12 x s min.
②,Material:
a)Steel, Strength class (material): 8.8,10.9,12.9 Standard DIN ISO 898-1
b)Stainless steel, Strength class (material): A2-70 Standard DIN 267-11

More Details

Certifications & Package

Our Services

Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers'
specification and performance.
Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
Cost effective: Competitive prices with professional factory supply
Perfect fastening solution with 15+ years experiences to solve your problem: Wide range of parts selection.
Customized Ideal Fasteners: customized services according to the samples and drawings offered.

Free Samples for Standard Fastener from Jiaxing City Qunbang Hardware

We Promise:
1. High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service

FAQ

1.What's your experience like?

Our general manager has been engaged in the export of fasteners since 2005.
Our team can provide you with professional fasteners selling and smooth export services.

2.How about your price?
High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you
refer at once.

3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.

4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container,
we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let
factory priority produce
your goods.

5.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers'
requirement.

6.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order.

Awaiting for your kind inquiry! Thanks & best regards!
For more information: www.steelnutbolts.com