DIN912 Socket Screw for Smarkey Solar Panel Mounting
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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 |
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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 |
≤ | ≤ | ≤ | ≤ | ≤ | ≥ | ≥ | ≥ | ≈ | ||
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.
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