Top Quality Button Head Allen Key Bolts - DIN 6921 Hexagon Flange Bolts – Tiancong

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Top Quality Button Head Allen Key Bolts - DIN 6921 Hexagon Flange Bolts – Tiancong Detail:

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Product parameters

Screw Thread 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	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
da	Form A	max	5.7	6.8	9.2	11.2	13.7	15.7	17.7	22.4
da	Form B	max	6.2	7.4	10	12.6	15.2	17.7	20.7	25.7
dc	max		11.8	14.2	18	22.3	26.6	30.5	35	43
ds	max		5	6	8	10	12	14	16	20
ds	min		4.82	5.82	7.78	9.78	11.73	13.73	15.73	19.67
du	max		5.5	6.6	9	11	13.5	15.5	17.5	22
dw	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

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We're proud from the higher client fulfillment and wide acceptance due to our persistent pursuit of high quality both on product and service for Top Quality Button Head Allen Key Bolts - DIN 6921 Hexagon Flange Bolts – Tiancong, The product will supply to all over the world, such as: Morocco, Provence, Philippines, We have now 48 provincial agencies in the country. We also have stable cooperation with several international trading companies. They place order with us and export solutions to other countries. We expect to cooperate with you to develop a larger market.

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