Chinese wholesale Allen Bolt With Washer - flat washer/spring washer – Tiancong

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Chinese wholesale Allen Bolt With Washer - flat washer/spring washer – Tiancong Detail:

Surface treatment

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We have our own surface treatment plant, and the thickness of zinc layer meets the standard requirements. We can make authoritative inspection reports, including surface treatment such as hot galvanizing, Dacromet, electro galvanizing, boiling black, etc.

The outer hexagon screw is a matching nut used to fasten and connect two connected parts with through holes and components. Hex head screws are commonly used bolts. It is more important to use Class A and Class B outer hexagon. In addition, it is often used in the occasion of high assembly accuracy, large impact, vibration or cross rate load. Grade C outer 66 screws are used in situations where the surface is rough and the assembly accuracy is not required.

Product standards

GB series, Q standard series, DIN German standard series, IFI American standard series, BS British standard series, JIS Japanese standard series, ISO international standard series, etc.

One of the standards for hexagon bolts is the level standard, which is divided into 4.8 and 8.8. These two levels are used more frequently in the market. Especially Grade 4.8 outer hexagon bolt. Because it is much cheaper than grade 8.8 hex bolts. Of course, it is more widely used. But for products with high requirements. Because of its high requirements in hardness and other aspects.

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Material

detail

The material comes from a high-quality steel manufacturer, which can issue an authoritative material inspection report, including Q235, 35 #, 45 #, 345B, 40Cr, 35CrmoA, stainless steel 201, 304 and other special materials.

This requires the use of grade 8.8 hex bolts. Grade 8.8 outer hexagon bolt is harder in terms of hardness and screw torque. It is safer to use the product. Faster and more stable.

Exported countries or regions

Poland, Russia, Algeria, Egypt, Ghana, Kuwait, the United Arab Emirates, Kazakhstan, Malaysia, Pakistan, the Philippines, South Korea, Myanmar, Thailand, Ukraine, Syria, India, the United States, Turkey, Brazil, Sri Lanka, Norway, etc.

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Product parameters

Nominal Diameter		Φ2	Φ2.2	Φ2.5	Φ3	Φ3.5	Φ4	Φ5	Φ6	Φ7	Φ8	Φ10	Φ12	Φ14	Φ16	Φ18	Φ20	Φ22
d	min	2.1	2.3	2.6	3.1	3.6	4.1	5.1	6.1	7.1	8.1	10.2	12.2	14.2	16.2	18.2	20.2	22.5
d	max	2.4	2.6	2.9	3.4	3.9	4.4	5.4	6.5	7.5	8.5	10.7	12.7	14.7	17	19	21.2	23.5
n	Nominal Size	0.9	1	1	1.3	1.3	1.5	1.8	2.5	2.5	3	3.5	4	4.5	5	5	6	6
	max	1	1.1	1.1	1.4	1.4	1.6	1.9	2.65	2.65	3.15	3.7	4.2	4.7	5.2	5.2	6.2	6.2
	min	0.8	0.9	0.9	1.2	1.2	1.4	1.7	2.35	2.35	2.85	3.3	3.8	4.3	4.8	4.8	5.8	5.8
h	Nominal Size	0.5	0.6	0.6	0.8	0.8	0.9	1.2	1.6	1.6	2	2.2	2.5	3	3.5	3.5	4	4
	max	0.6	0.7	0.7	0.9	0.9	1	1.3	1.7	1.7	2.1	2.35	2.65	3.15	3.7	3.7	4.2	4.2
	min	0.4	0.5	0.5	0.7	0.7	0.8	1.1	1.5	1.5	1.9	2.05	2.35	2.85	3.3	3.3	3.8	3.8
H	min	1	1.2	1.2	1.6	1.6	1.8	2.4	3.2	3.2	4	4.4	5	6	7	7	8	8
H	max	1.2	1.4	1.4	1.9	1.9	2.1	2.8	3.8	3.8	4.7	5.2	5.9	7.1	8.3	8.3	9.4	9.4
per 1000 units ≈ kg		0.033	0.05	0.053	0.11	0.12	0.18	0.36	0.83	0.93	1.6	2.53	3.82	6.01	8.91	9.73	15.2	16.5
Nominal Diameter		Φ24	Φ27	Φ30	Φ36	Φ39	Φ42	Φ45	Φ48	Φ52	Φ56	Φ60	Φ64	Φ68	Φ72	Φ80	Φ90	Φ100
d	min	24.5	27.5	30.5	36.5	39.5	42.5	45.5	49	53	57	61	65	69	73	81	91	101
d	max	25.5	28.5	31.7	37.7	40.7	43.7	46.7	50.5	54.5	58.5	62.5	66.5	70.5	74.5	82.5	92.5	102.5
n	Nominal Size	7	7	8	10	10	12	12	12	14	14	14	14	14	14	14	14	14
	max	7.25	7.25	8.25	10.25	10.25	12.25	12.25	12.25	14.25	14.25	14.25	14.25	14.25	14.25	14.25	14.25	14.25
	min	6.75	6.75	7.75	9.75	9.75	11.75	11.75	11.75	13.75	13.75	13.75	13.75	13.75	13.75	13.75	13.75	13.75
h	Nominal Size	5	5	6	6	6	7	7	7	8	8	8	8	8	8	8	8	8
	max	5.2	5.2	6.2	6.2	6.2	7.25	7.25	7.25	8.25	8.25	8.25	8.25	8.25	8.25	8.25	8.25	8.25
	min	4.8	4.8	5.8	5.8	5.8	6.75	6.75	6.75	7.75	7.75	7.75	7.75	7.75	7.75	7.75	7.75	7.75
H	min	10	10	12	12	12	14	14	14	16	16	16	16	16	16	16	16	16
H	max	11.8	11.8	14.2	14.2	14.2	16.5	16.5	16.5	18.9	18.9	18.9	18.9	18.9	18.9	18.9	18.9	18.9
per 1000 units ≈ kg		26.2	28.7	44.3	67.3	71.7	111	117	123	182	193	203	218	228	240	262	290	318

Our Advantages

1. Professional online service team, any mail or message will reply within 24 hours.
2. We have a strong team provide wholehearted service to customer at any time.
3. We insist on Customer is Supreme, Staff toward Happiness.
4. Put the Quality as the first consideration.
5. Advanced production equipment, strict quality testing and control system to make sure superior quality.
6. Good quality: good quality can be guaranteed, it will help you keep the market share well.

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100mm Square Washer