2021 Good Quality Square Head Bolt - DIN603 carriage bolt round head square neck – Tianbang Fasteners

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Being supported by an state-of-the-art and skilled IT team, we could supply technical support on pre-sales & after-sales service for Helical Spring Washer, Square J Bolt, Flat Washer, We are going to wholeheartedly welcome all clientele during the industry both of those at your home and overseas to cooperate hand in hand, and build a bright potential together.

2021 Good Quality Square Head Bolt - DIN603 carriage bolt round head square neck – Tianbang Fasteners Detail:

Specification

Product name	Carriage bolt
Size	M6-M52, 1/4”-2”
Grade	4.8 6.8 8.8 10.9 12.9
Material	Carbon steel Q235 35k,20MNTiB
Standard	DIN, ISO, GB, BS, ASTM
Thread	Coarse thread, Fine thread , Half thread, Full thread
Surface	Plain, Black, zinc plated, HDG, Dacromet
Service	OEM/ODM/ Customized
Quality control	Raw material test, during production test, before packing test
Certificate	ISO9001, SGS
Sample	Sample available
Packing	25kg bag/carton+pallet

Standard

Carriage bolt

d		M5	M6	M8	M10	M12	M16	M20
P	pitch	0.8	1	1.25	1.5	1.75	2	2.5
b	L≤125	16	18	22	26	30	38	46
	125＜L≤200	22	24	28	32	36	44	52
	L＞200	/	/	41	45	49	57	65
dk	max	13.55	16.55	20.65	24.65	30.65	38.8	46.8
dk	min	12.45	15.45	19.35	23.35	29.35	37.2	45.2
ds	max	5	6	8	10	12	16	20
ds	min	4.52	5.52	7.42	9.42	11.3	15.3	19.16
K1	max	4.1	4.6	5.6	6.6	8.75	12.9	15.9
K1	min	2.9	3.4	4.4	5.4	7.25	11.1	14.1
k	max	3.3	3.88	4.88	5.38	6.95	8.95	11.05
k	min	2.7	3.12	4.12	4.62	6.05	8.05	9.95
r1	≈	10.7	12.6	16	19.2	24.1	29.3	33.9
r2	max	0.5	0.5	0.5	0.5	1	1	1
r3	max	0.75	0.9	1.2	1.5	1.8	2.4	3
S	max	5.52	6.48	8.58	10.58	12.7	16.7	20.84
S	min	5.48	5.52	7.42	9.42	11.3	15.3	19.16

Product details

Carriage bolt

Surface

Carriage bolt

Application

Carriage bolt

Why choose us ?

1. Quality Certification: ROHS, ISO9001,IATF16949
2. Professional testing: 100% of full line testing system, in lines with ISO standard.
3. Salt spray time: 2 hours, 24 hours, 48 hours, 96 hours, 1000 hours we can do as per need. And can offer with salt spray checking report.
4. Inspection equipment: Sclerometer, Hardness tester, Caliper, Torsion meter, Salt atmosphere testing machine, Projector,Die gage, Image screening instrument etc.
5. Highly competitive prices.
6. we can manufacture according to client design.

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We persist with the principle of "quality 1st, assistance initially, continual improvement and innovation to meet the customers" for your management and "zero defect, zero complaints" as the standard objective. To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for 2021 Good Quality Square Head Bolt - DIN603 carriage bolt round head square neck – Tianbang Fasteners , The product will supply to all over the world, such as: Maldives, Brasilia, Norway, We always insist on the principle of "Quality and service are the life of the product". Till now, our products have been exported to more than 20 countries under our strict quality control and high level service.

3 Inch Screws