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High Strength Grade 4.8 8.8 10.9 12.9 Black Oxide DIN603 Carriage Bolts

Category: Prouct

Key words：

Stainless Steel SS201 SS304 SS316 A2-70 A4-80 DIN912 Allen Bolts

We are committed to become the world's top fastening solutions provider, let Chinese prod-uct enterworld class, let the Chengyi production become synonymous with quality. To this end we need perseverance. At the same time, we also shoulder the responsibility of the society and the expectations of theemployees. In the future, we will become a respected enterprise.

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Product Photos and Information

Name	Carriage Bolts	Materials	Carbon Steel/Stainless Steel
Standards	DIN ISO UNC BSW JIS etc.	Strength level	4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80
Size	M3-M50	Surface finish	ZP\HDG\BLACK\Dacromet etc.
Length	15-500	Samples	Available

Product Standards

Large round head square neck bolts DIN 603

Thread specification		M5	M6	M8	M10	M12	M16	M20
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	twenty two	26	30	38	46
	125＜L≤200	twenty two	twenty four	28	32	36	44	52
	L>200	-	-	41	45	49	57	65
dk	maximum value	13.55	16.55	20.65	24.65	30.65	38.8	46.8
dk	minimum	12.45	15.45	19.35	23.35	29.35	37.2	45.2
ds	maximum value	5	6	8	10	12	16	20
ds	minimum	4.52	5.52	7.42	9.42	11.3	15.3	19.16
k 1	maximum value	4.1	4.6	5.6	6.6	8.75	12.9	15.9
k 1	minimum	2.9	3.4	4.4	5.4	7.25	11.1	14.1
k	maximum value	3.3	3.88	4.88	5.38	6.95	8.95	11.05
k	minimum	2.7	3.12	4.12	4.62	6.05	8.05	9.95
r 1	≈	10.7	12.6	16	19.2	24.1	29.3	33.9
r 2	maximum value	0.5	0.5	0.5	0.5	1	1	1
r 3	maximum value	0.75	0.9	1.2	1.5	1.8	2.4	3
s	maximum value	5.48	6.48	8.58	10.58	12.7	16.7	20.84
s	minimum	4.52	5.52	7.42	9.42	11.3	15.3	19.16
Thousand pieces of steel weight ≈kg		-	-	-	-	-	-	-
thread length b		-	-	-	-	-	-	-

About Us

We are committed to become the world's top fastening solutions provider, let Chinese product enterworld class, let the Chengyi production become synonymous with quality. To this end we need perseverance. At the same time, we also shoulder the responsibility of the society and the expectations of theemployees. In the future, we will become a respected enterprise.

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Our export countries include Russia, South Korea, Britain, France, Germany, Italy, Canada, Mexico,Brazil, Argentina, Chile, Australia, Indonesia, Thailand, Singapore, Saudi Arabia, Syria, Egypt, Tanzania,Kenya and other countries. Our products will be spread all over the world!