Semi-round Head Square Neck Bolts

As one of professional manufacturers in China, DONGSHAO would like to provide you Semi-round Head Square Neck Bolts. And we will offer you the best after-sale service and timely delivery.

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Product Description

Hebei Dongshao Fastener Manufacturing Co., Ltd. is a famous supplier and manufacturer of Semi-round Head Square Neck Bolts in China.The Semi-round head square neck bolts manufactured by the company include smooth half round head square neck bolts carbon steel half round head square neck bolts stainless steel half round head square neck bolts;It has the function of firm and stable, long service life and quick installation; Beautiful design of half round head, suitable for engineering projects requiring fine appearance;Excellent surface treatment, anti-oxidation, anti-wear, anti-corrosion, suitable for all kinds of harsh environment.

Semi-round Head Square Neck Bolts Parameter

(mm)	M6	M8	M10	M12	M14	M16	M20
P	1	1.25	1.5	1.75	2	2	2.5
dk max	13.1	17.1	21.3	25.3	29.3	33.6	41.6
dk min	11.3	15.3	19.16	23.16	27.16	31	39
k1 max	4.4	5.4	6.4	8.45	9.45	10.45	12.55
k1 min	3.6	4.6	5.6	7.55	8.55	9.55	11.45
k max	4.08	5.28	6.48	8.9	9.9	10.9	13.1
k min	3.2	4.4	5.6	7.55	8.55	9.55	11.45
s max	6.3	8.36	10.36	12.43	14.43	16.43	20.52
s min	5.84	7.8	9.8	11.76	13.76	15.76	19.22
r min	0.5	0.5	0.5	0.8	0.8	1	1
ds max	6	8	10	12	14	16	20
ds min	5.35	7.19	9.03	10.86	12.70	14.70	18.38