Main:stainless steel 304,316,316L Full series of standard fasteners and non-Standard Special-shaped
1/4"-20X1/2"18-8 STAINLESS STEEL HEX CAP SCREW
Key Specifications/Special Features:
Stainless bolts conform to ASTM F593.
Bolts conform to the dimensions of ASME B18.2.1.
Minimum tensile strength:3,180 Ibf.
Recommended torque value:8.9 ft lb. T
hread length is 1/2"(full thread).
Xiamen Wanhos Solar Technology Co., Ltd. is a hightech enterprise in solar PV field specializing in solar PV products with advanced technology and excellent service. Wanhos Solar members devote themselves to research, design, manufacture and sell the steady, trustable and costefficient solar PV mounting system solutions. As one of the largest PV solar products exporter in China, the pioneering products have been installed in more than100 countries and regions since it established.
Wanhos Solar brought forward the standardized and internationalized management concept at the beginning of its establishment, positively brought in and strictly applied ISO9001:2008,CP, APQP,FMEA,MSA, SPC etc international quality manage system in all phases including R&D, manufacturing, marketing and after service.
FAQ about QC
1. Do you inspect the raw material?
Each batch of materials is carefully tested by inspector on apperance, raw material defects, wire drawing size etc. and the testing result is filed in computer. All the checmical composition as well as material warranty documents of raw materials is spot checked.
2. Do you inspect the goods during the production?
Inspector test each process according to the order and the corresponding product standard, each process has corresponding operation instruction. Al the test result is filed in the corresponding computer daily. Mechanical properties are filed in paper documents.
3. How do you control each batch goods?
Statistician keep recording and filing all batch of the incoming products, noted with contract No., model, size, quantity, weight, surface color etc.
4. Will you ship the unqualified goods?
Concerning to abnormal occurrence or unqualified products: Unqualified products processing sheet is reported to QC dept. by inspector. The reworking will be done after QC workers come up with solutions and suggestions.
5. How do you manage your files?
All the documents or customer orders is given out by designated personnel. The drawings and exterior documents are given out and recorded by QC department.
6. Can we get the inspection certificate?
A Unified test report presented by specific worker is delivered together with the finished products.
7. How do you keep your testing equipment?
I. Heavy testing equipments: tensile machine, charpy impact tester, hardness tester, thread check gauge, plug gauge, vernier caliper, micrometer, pitch diameter micrometer, dial caliper, digimatic caliper etc. are all sent to be tested and adjusted in qualified professional company for once annually.
Ⅱ. Ring guage is tested and adjusted by proof-reader in company monthly; hardness tester is only applied after the testing by on-duty inspectors each day.
8. What's the shipping process?
I. For LCL cargos, we arrange reliable logistics company to drive them to the forwarder agent's warehouse.
Ⅱ. For FLC cargos, the container directy go to the Factory loading. Our professional loading workers, accompanied with our forklift workers arrange the loading in good order even on the condition that daily loading capacity is overloaded.
Ⅲ. Our professional data management is a guarantee of the real-time update and the unification to all the electrical packing list, invoice.
International sales manager
WhatsApp/Skype/Wechat: +86 13696955256