thread size					M1.4	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20
d
P		thread pitch	coarse		0.3	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
			fine1		-	-	-	-	-	-	-	-	1	1.25	1.25	1.5	1.5	1.5	1.5
			fine2		-	-	-	-	-	-	-	-	-	1	1.5	-	-	2	2
dk		round head	max		2.6	3	3.8	4.5	5.5	7	8.5	10	13	16	18	21	24	27	30
		knurled head	max		2.74	3.14	3.98	4.68	5.68	7.22	8.72	10.22	13.27	16.27	18.27	21.33	24.33	27.33	30.33
		min			2.46	2.86	3.62	4.32	5.32	6.78	8.28	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67
da		max			1.8	2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2	13.7	15.7	17.7	20.2	22.4
ds		max			1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
		min			1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67
e		min			1.5	1.73	1.73	2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	13.72	16	16	19.44
k		min			1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
		min			1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.7	7.64	9.64	11.57	13.57	15.57	17.57	19.48
s		nominal			1.3	1.5	1.5	2	2.5	3	4	5	6	8	10	12	14	14	17
		min			1.32	1.52	1.52	2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	12.032	14.032	14.032	17.05
		max			1.36	1.56	1.56	2.06	2.58	3.08	4.095	5.14	6.14	8.175	10.175	12.212	14.212	14.212	17.23
t		min			0.6	0.7	1	1.1	1.3	2	2.5	3	4	5	6	7	8	9	10
w		min			0.5	0.55	0.55	0.85	1.15	1.4	1.9	2.3	3	4	4.8	5.8	6.8	7.8	8.6
螺纹尺寸					(M22)	M24	(M27)	M30	(M33)	M36	M42	M48	M56	M64	M72	M80	M90	M100
d
P		thread pitch	coarse		2.5	3	3	3.5	3.5	4	4.5	5	5.5	6	6	6	6	6
			Fine1		1.5	2	2	2	2	3	3	3	4	4	4	4	4	4
			Fine2		2	-	-	-	-	-	-	-	-	-	-	-	-	-
dk		round head	max		33	36	40	45	50	54	63	72	84	96	108	120	135	150
		knurled head	max		33.39	36.39	40.39	45.39	50.39	54.46	63.46	72.46	84.54	96.54	108.54	120.54	135.63	150.63
		min			32.61	35.61	39.61	44.61	49.61	53.54	62.54	71.54	83.46	95.46	107.46	119.46	134.37	149.37
da		max			24.4	26.4	30.4	33.4	36.4	39.4	45.5	52.6	63	71	79	87	97	107
ds		max			22	24	27	30	33	36	42	48	56	64	72	80	90	100
		min			21.67	23.67	26.67	29.67	32.61	35.61	41.61	47.61	55.54	63.54	71.54	79.54	89.46	99.46
e		min			19.44	21.73	21.73	25.15	27.43	30.85	36.57	41.13	46.83	52.53	62.81	74.21	85.61	97.04
k		max			22	24	27	30	33	36	42	48	56	64	72	80	90	100
		min			21.48	23.48	26.48	29.48	32.38	35.38	41.38	47.38	55.26	63.26	71.26	79.26	89.13	99.13
s		nominal			17	19	19	22	24	27	32	36	41	46	55	65	75	85
		min			17.05	19.065	19.065	22.065	24.065	27.065	32.08	36.08	41.08	46.08	55.1	65.1	75.1	85.12
		max			17.23	19.275	19.275	22.275	24.275	27.275	32.33	36.33	41.33	46.33	55.4	65.4	75.4	85.47
t		min			11	12	13.5	15.5	18	19	24	28	34	38	43	48	54	60
w		min			9.4	10.4	11.9	13.1	13.5	15.3	16.3	17.5	19	22	25	27	32	34

PRODUCTS DETAILS: Generally made of SUS304 stainless steel wire. There are two kinds of stainless steel hexagon screws in circulation on the market: head knurling and non-knurling. Stainless steel hex socket screws from the surface generally can not distinguish the quality of the material, but can be judged from the production process of the screw (industry experience, for reference only) : generally in the stainless steel hex socket screw head has a straight kroller process can be judged as the authentic SUS304 production of screws. Stainless steel hex socket screws without kryptonite on the head can be regarded as slightly inferior material or lower nickel content products. However, the specific analysis is subject to the report issued by the quality inspection unit. Stainless steel hexagon socket screw is a kind of hole screw, generally used in machine tool equipment, chemical equipment, water pump, ships, power equipment and other places, full tooth stainless steel hexagon socket screw is more commonly used, and half tooth stainless steel hexagon socket screw in the domestic more used in export equipment. The material is divided into two kinds: SUS304 stainless steel hexagon screw, strength level description -A2-70. Hexagon socket screws, SUS316 stainless steel, Strength Class description -A4-70 FACTORY AND PACKING :   WE ARE ON FASTENER FAIR: