304 stainless steel thin flat head cross recessed tapping screw Cross drilling screw

Moq:

1 ton

Price:

Bagged/Boxed etc.

Package:

Please contact us

Export port:

Tianjin/Qingdao/Shanghai etc.

Delivery date:

15~30 days

Payment method:

T/T T/C

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Product Detail

Product Tags

Product Photos and Information

Name	Self drilling Screws	Materials	Carbon Steel/Stainless Steel
Standards	DIN ISO ANC BSW JIS etc.	Strength level	8.8 etc.
Size	M1.5-M6	Surface finish	ZPBLACK etc.
Length	10-100	Samples	Available

Product Standards

Cross recessed countersunk head self-tapping self-drilling screws DIN 7504
Thread specification		ST2.9	ST3.5	ST4.2	ST4.8	ST5.5	ST6.3
P	pitch	1.1	1.3	1.4	1.6	1.8	1.8
a	maximum value	1.1	1.3	1.4	1.6	1.8	1.8
dk	maximum value	5.5	7.3	8.4	9.3	10.3	11.3
dk	minimum	5.2	6.9	8	8.9	9.9	10.9
k	maximum value	1.7	2.35	2.6	2.8	3	3.15
r	maximum value	1.2	1.4	1.6	2	2.2	2.4
slot number		1	2	2	2	3	3
M1 _		3.2	4.4	4.6	5.2	6.6	6.8
M 2		3.2	4.3	4.6	5.1	6.5	6.8
dp		2.3	2.8	3.6	4.1	4.8	5.8
Drilling range (plate thickness)		0.7~1.9	0.7~2.25	1.75~3	1.75~4.4	1.75~5.25	2~6
Lg (minimum)		-	-	-	-	-	-

Full Thread Hexagon Head Bolts Grade A and B DIN 933
Thread specification			M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16
d			M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16
P	pitch		0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1	1.25	1.5	1.75	2	2
a	maximum value		1.05	1.2	1.35	1.5	1.8	2.1	2.4	3	3	3.75	4.5	5.25	6	6
c	minimum		0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.2
c	maximum value		0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.8
d a	maximum value		2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	7.8	9.2	11.2	13.7	15.7	17.7
dw	Class A	minimum	2.4	3.2	4.1	4.6	5.1	5.9	6.9	8.9	9.6	11.6	15.6	17.4	20.5	22.5
dw	Class B	minimum	-	-	-	-	-	5.7	6.7	8.7	9.4	11.4	15.4	17.2	20.1	twenty two
and	Class A	minimum	3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	12.12	14.38	18.9	21.1	24.49	26.75
and	Class B	minimum	-	-	-	-	-	7.5	8.63	10.89	11.94	14.2	18.72	20.88	23.91	26.17
k	Nominal		1.1	1.4	1.7	2	2.4	2.8	3.5	4	4.8	5.3	6.4	7.5	8.8	10
	Class A	minimum	0.98	1.28	1.58	1.88	2.28	2.68	3.35	3.85	4.65	5.15	6.22	7.32	8.62	9.82
	Class A	maximum value	1.22	1.52	1.82	2.12	2.52	2.92	3.65	4.15	4.95	5.45	6.56	7.68	8.98	10.18
	Class B	minimum	-	-	-	-	-	2.6	3.26	3.76	4.56	5.06	6.11	7.21	8.51	9.71
	Class B	maximum value	-	-	-	-	-	3	3.74	4.24	5.04	5.54	6.69	7.79	9.09	10.29
k 1	minimum		0.7	0.9	1.1	1.3	1.6	1.9	2.28	2.63	3.19	3.54	4.28	5.05	5.96	6.8
r	minimum		0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.25	0.4	0.4	0.6	0.6	0.6
s	max = nominal		3.2	4	5	5.5	6	7	8	10	11	13	17	19	twenty two	twenty four
	Class A	minimum	3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	16.73	18.67	21.67	23.67
	Class B	minimum	-	-	-	-	-	6.64	7.64	9.64	10.57	12.57	16.57	18.48	21.16	23.16
Thousand pieces of steel weight ≈kg			-	-	-	-	-	-	-	-	-	-	-	-	-	-
Thread specification			(M18)	M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48	(M52)
d			(M18)	M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48	(M52)
P	pitch		2.5	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5
a	maximum value		7.5	7.5	7.5	9	9	10.5	10.5	12	12	13.5	13.5	15	15
c	minimum		0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3
c	maximum value		0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	1	1	1	1	1
d a	maximum value		20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4	45.6	48.6	52.6	56.6
dw	Class A	minimum	25.3	28.2	30	33.6	-	-	-	-	-	-	-	-	-
dw	Class B	minimum	24.8	27.7	29.5	33.2	38	42.7	46.5	51.1	55.9	59.9	64.7	69.4	74.2
and	Class A	minimum	30.14	33.53	35.72	39.98	-	-	-	-	-	-	-	-	-
and	Class B	minimum	29.56	32.95	35.03	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
k	Nominal		11.5	12.5	14	15	17	18.7	twenty one	22.5	25	26	28	30	33
	Class A	minimum	11.28	12.28	13.78	14.78	-	-	-	-	-	-	-	-	-
	Class A	maximum value	11.72	12.72	14.22	15.22	-	-	-	-	-	-	-	-	-
	Class B	minimum	11.15	12.15	13.65	14.65	16.65	18.28	20.58	22.08	24.58	25.58	27.58	29.58	32.5
	Class B	maximum value	11.85	12.85	14.35	15.35	17.35	19.12	21.42	22.92	25.42	26.42	28.42	30.42	33.5
k 1	minimum		7.8	8.5	9.6	10.3	11.7	12.8	14.4	15.5	17.2	17.9	19.3	20.9	22.8
r	minimum		0.6	0.8	0.8	0.8	1	1	1	1	1	1.2	1.2	1.6	1.6
s	max = nominal		27	30	32	36	41	46	50	55	60	65	70	75	80
	Class A	minimum	26.67	29.67	31.61	35.38	-	-	-	-	-	-	-	-	-
	Class B	minimum	26.15	29.16	31	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Thousand pieces of steel weight ≈kg			-	-	-	-	-	-	-	-	-	-	-	-	-

About Us

Dabang Fasteners is a wholly-owned subsidiary of Hebei Chengyi Engineering Materials Co., Ltd.
Our parent company has 21 years experience in fastener production and is ISO9001 ISO14001 ISO45001 SGS certified.
We focus on providing customers with competitive products that meet user needs.
--- Factory price, saving 15-30% of the middleman price difference.
--- exporting to 154 countries, accumulatively serving 1800+ customers, rich export experience
--- 5000 tons in stock, up to 3000 tons per month, average delivery time 7-20 days.
--- After-sales team of 25 people, solve all after-sales problems

0 Risk Commitment
--- If the product quality and packaging problems are found after receiving the goods,
help solve the problem and unconditionally compensate the loss within 30 days.

Our added value
--- In China, provide you with free factory inspection services.