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DIN912 Socket Screw for Smarkey Solar Panel Mounting

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DIN912 Socket Screw for Smarkey Solar Panel Mounting

Country/Region	china
City & Province	jiaxing zhejiang
Categories	Screws

Product Details

DIN912 Socket Screw Smarkey Solar Panel Mounting Bracket Screw Hardware Parts For Van RV Boat Off Grid Roof PV Racking
Smarkey Solar Panel mounting screws are very easy to use,and can support any solar panel assembly.
The Mounting screws hardware are Manufactured of High Quality stainless.
The mounting screws can works for 50W-300W panels which should be work with guide rails.
Solar Panel mounting hardware screws can help you assembly mount kits racking standard or any solar panel assembly, like solar light, door openner, boat, van, RV, PV
Can be used with either composite or metal roofs as well as with other manufacturers rail and flashed solar panel mounting systems.

Specification

DIN912 High Tensile Stainless Steel Bolts

Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened, while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads

per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer

the thread, the better the resistance. They are not compatible with coarse threads.

Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing

requirements for material quality. Screws that meet ASME B18.3, ASME B18.3M, ISO 21269, and

ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.

DIN 912 - Hexagon socket Head Cap Screws

Current norm: DIN EN ISO 4762
Equivalent norms: ISO 4762; CSN 021143; PN 82302; UNI 5931

Screw Thread
d

P	Pitch	Coarse thread
		Fine thread pitch-1
		Fine thread pitch-2
b	Ref.
d_k	plain head	max
	knurled heads	max
	min
d_a	max
d_s	max
	min
e	min
k	max
	min
s	Nominal Size
	min
	max
t	min
w	min

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
-	-	-	-	-	-	-	-	1	1.25	1.25	1.5	1.5	1.5	1.5
-	-	-	-	-	-	-	-	-	1	1.5	-	-	2	2
14	15	16	17	18	20	22	24	28	32	36	40	44	48	52
2.6	3	3.8	4.5	5.5	7	8.5	10	13	16	18	21	24	27	30
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
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
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
1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
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
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
1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
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
1.3	1.5	1.5	2	2.5	3	4	5	6	8	10	12	14	14	17
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
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
0.6	0.7	1	1.1	1.3	2	2.5	3	4	5	6	7	8	9	10
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

Legend:

d - the nominal diameter of the thread
k - head height
t - groove depth
dk - head diameter
L - length of bolt
s - size of the internal hexagon

Makings:QBH

Steel: A2-70 A4-80
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 6g, 5g6g for strength 12.9

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

A2-70 A2-80 A4-70 A4-80

Mechanical property

	化学成分CHEMICAL COMPOSI(% )
Type	C碳	Si硅	Mn锰	P磷	S硫	Ni镍	Cr铬	Mo钼	Cu铜	Others
Type	≤	≤	≤	≤	≤	≥	≥	≥	≈
201Cu	0.08	1.00	7.5-10	0.06	0.03	4.00-6.00	14.0-17.0		2.0-3.0
201	0.15	1.00	8.50	0.06	0.03	3.50-5.50	16.0-18.0			N≤0.25
130M/202	0.15	1.00	7.5-10	0.06	0.03	4.00-6.00	17.0-19.0			N≤0.25
202	0.15	1.00	7.5-10	0.06	0.03	4.00-6.00	17.0-19.0
301	0.15	1.00	2.00	0.045	0.03	5.00-8.00	16.0-18.0
302	0.15	1.00	2.00	0.045	0.03	8.00-10.0	17.0-19.0
XM7 (302HQ)	0.08	1.00	2.00	0.045	0.03	8.50-10.5	17.0-9.00		3.0-4.0
303	0.15	1.00	2.00	0.20	≥0.15	8.00-10.0	17.0-19.0	≤0.60
303Cu	0.15	1.00	3.00	0.20	≥0.15	8.0-10.0	17.0-19.0	≤0.60	1.5-3.5
304	0.08	1.00	2.00	0.045	0.03	8.00-10.0	18.0-20.0
304H	0.08	1.00	2.00	0.045	0.03	8.0-10.0	18.0-20.0
304HC	0.08	1.00	2.00	0.045	0.03	8.00-10.0	17.0-19.0		2.0-3.0
304HCM	0.08	1.00	2.00	0.045	0.03	8.0-10.0	17.0-19.0		2.5-4.0
304L	0.03	1.00	2.00	0.045	0.03	9.0-13.0	18.0-20.0
304M	0.06	1.00	2.00	0.045	0.03	8.50-10.0	18.0-20.0
305	0.12	1.00	2.00	0.045	0.03	10.5-13.0	17.0-19.0
305J1	0.08	1.00	2.00	0.045	0.03	11.0-13.5	16.5-19.0
309S	0.08	1.00	2.00	0.045	0.03	12.0-15.0	22.0-14.0
310S	0.08	1.50	2.00	0.045	0.03	19.0-22.0	24.0-26.0
314	0.25	15.-3.0	2.00	0.040	0.03	19.0--22.0	24.0-26.0
316	0.08	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0
316Cu	0.03	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0	2.0-3.0
316L (12Ni)	0.03	1.00	2.00	0.045	0.03	12.0-15.0	16.0-18.0	2.0-3.0
316L (10Ni)	0.03	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0
321	0.08	1.00	2.00	0.045	0.03	9.00-13.0	17.0-19.0			Ti≤5*C%
410	0.15		1.00		0.03		11.5-13.5
416	0.15		1.25		≥0.15		12.0-14.0
420	0.26-0.4		1.00		0.03		12.0-14.0
410L	0.30	1.00	1.00	0.040	0.03		11.5-13.5
430	0.12	0.75	1.00	0.040	0.03		16.0-18.0
430F	0.12	1.00	1.25	0.060	0.15		16.0-18.0
631(J1)	0.09	1.00	1.00	0.040	0.03	6.50-8.50	16.0-18.0			AL 0.75-1.5
2520	0.08	1.00	2.00	0.035	0.03	19.0-22.0	24.0-26.0
410	0.015	1.00	1.00	0.04	0.03		11.5-13.5

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

Packing in small boxes according to customer’s requirements

Packing in plastic bag according to customer’s requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

QBH brand sales to the main quality assurance.
Years of export trade management, excellent service, word-of-mouth guarantee.
By working with TUV,escort for quality.
Customization of non-standard parts can be made according to customer's requirements and drawings.
For quality customers,we can provide a certain credit period.