Common specifications of hexagonal drilling screws are ST2.9×6, ST2.9×20, ST3.5×12, ST3.5×18, ST3.5×40, ST3.9×30, ST3.9×22,
ST4.2×75, ST4.2×60, ST4.8×13, ST4.8×25, ST5.5×40, ST 5.5×55, ST6.3×30, ST6.3×45, ST6.3×70 and other different specifications, of
which ST5.5×40 refers to the diameter of the hexagonal drilling screw is 5.5 mm, the length is 40 mm.
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- Product Details
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Quick Details
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Application:
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General Industry
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Tapping screws type:
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Hexagon head self-drilling screws
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Product name:
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Self-drilling Screws
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Material:
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C1022A
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Head type:
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Hexagon
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Surface treatment:
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Yellow white zinc and black zinc
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Drive type:
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Hex Scoket
Quick Details
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Warranty:
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3 Months
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Finish:
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Black, ZINC
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Measurement system:
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Metric
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Application:
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General Industry
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Tapping screws type:
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Hexagon head self-drilling screws
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Product name:
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Self-drilling Screws
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Material:
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C1022A
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Head type:
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Hexagon
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Surface treatment:
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Yellow white zinc and black zinc
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Drive type:
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Hex Scoket
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hex self drilling screw
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Material
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C1022A Carbon Steel Famous Brand Steel Heat Treatment
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Standard
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DIN7505/DIN18182/DIN7504K/DIN7504P/DIN7504N/DIN7981/DIN7982/ASME/DIN571/DIN965
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Thread
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AB thread/B thread/Fine Thread/Coarse Thread/High Low Thread
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Length
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6mm-200mm, 1/4"-8"
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Diameter
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2.9mm,3.5mm,3.9mm,4.2mm,4.8mm,5.5mm,6.3mm /#4,#6,#7,#8,#10,#12,#14
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Drive
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Without or Slotted/Philips/Pozi/Slotted and Philips/Square/Torx
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Head
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Double CSK head/Csk Head/Pan Head/Flat Head/Bugle Head/Hex Head/Wafer Head/Truss Head/Modified Truss Head/Pan framing
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Surface
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Galvanized/Phosphated/Black/Ruspet
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Thread Angel
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60°/40°
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Packing
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Small box/Nylon Bag/Plastic Box/Bulk/Pallet
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Q1.Can you provide customized services?
Q2.What types of custom parts do you offer?
Yes, we are a factory that can provide customization.
Q2.What types of custom parts do you offer?
Zhongjiu provides cold upsetting, hot forgings, stamping parts, machined parts, cold working parts and other customized parts. Zhongjiu is not only able to provide customized parts for a single process, but also a variety of combined processes.
Q3.Does each customized product require a mold fee?
Not all custom parts are subject to a mold fee.For example, conventional products do not require molds, and Zhongjiu spends labor costs when making samples, so it charges a certain sample fee. It will be returned after placing an order.
Q4.Where is your factory and can I visit it?
Zhongjiu has its own factory. You can mainly be located in Hebei Province Visit the appropriate factory according to the product you want to purchase.Please feel free to visit our factory and provide Guide. We can pick you up at the nearest airport or train station.
Q5.Can you provide free samples?
Yes, for standard fasteners, we can provide free samples if available. Please understand that we charge a fee for custom samples before making them 。
Q6.How do you guarantee quality? Zhongjiu strictly follows the ISO9001 quality certification system for quality control. Zhongjiu regularly implements self-inspection and quality inspection of workers in the production process, and strictly conducts QC sampling before packaging.
Q7.What will you do if I have paid for the mold but receive a non-conforming sample? For the first development of non-standard parts, if 2 times the unqualified sample is delivered,we will refund the mold fee. If you give us more opportunities to make molds, we will continue to learn until we succeed.
Q8.Whatis your MOQ for processing? Any mold fees?
Can the mold fee be refunded?
A. MoQ of non-standard fasteners: 1-2 tons, according to different parts, a mold fee is charged when reaching one The quantity will be refunded when it is listed, which is described more fully in our quotation.
B. MoQ of stamped parts: depends on the difficulty and size of the part. We will charge a tooling fee and refund it when a certain amount is reached, which is described more fully in our quotation.
Q9.What is your delivery time?
A:Sample 15-30 days, mass production 25-50 days.
Q10.Do you accept the use of our logo?
If you have a large number, we definitely accept OEMs.
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