Steel structure connection bolts performance grade points 3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9 and so on more than 10 grades, of which 8.8 and above bolts for the low carbon alloy steel or medium carbon steel and heat treatment (Quenching, tempering), commonly known as high-strength bolts, the rest known as ordinary bolts.
| Standard: | ASME B 18.2.1, IFI149,DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, ISO4014 and etc. |
| Size: | standard & non-standard, spport customized |
| Material: | Carbon Steel, Alloy Steel, Stainless Steel, Brass and etc. |
| Grade: | SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. |
| Thread: | UNC,UNF |
| Finish: | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. |
| Packing: | Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
| Application: | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. |
| Test Equipments: | Desktop direct- reading spectrometer, cutting machine, automatic pre- milling machine, polishing machin, hard-testing gauge(Vickers), metallography microscope, electrolytic thickness gauge, tensile testing machine, salt spray device, magnetic detection machine(magnetic particle flaw detector), Caliper, Go&No-go gauge and etc. |
| Supply Ability: | 2000 tons per month |
| Minimum Order: | 5000pcs |
| Trade Term: | FOB/CIF/CFR/CNF/EXW |
| Payment | T/T, Western Union ,MoneyGram ,etc |
| Market: | South&north Amrica/Europe/East&South east Asia/ Australia and Africa etc. |
| Our advantage: | One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; |
| Notice: | Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us |
| 1,Products Detailes |
| Products | bolt,screw,nut,washer,pin,rivet and non-standard fastener |
| Size | Standard.non-standard according to drawing or samples |
| Machines | auto pressing machines, automatic heading machine, cold header high-precision surface grinder machine, involantary grinder machines,Digital Micro Vickers Hardness tester, Electrolytic metrical thickness gauge, Vision Measuring Machine,Fischer Scope X-ray Thickness Gauge and so on |
| Material | 1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 |
| 2,Steel:C45(K1045), C46(K1046),C20 |
| 3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), |
| C27200CuZn37), C28000(CuZn40) |
| 4.Bronze: C51000, C52100, C54400, etc |
| 5.Iron: 1213, 12L14,1215 |
| 6.Aluminum: Al6061, Al6063 etc |
| 7,.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 |
| 8, Alloy steel: SCM435,10B21 |
| Surface Finishing | Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. |
| Heat Treatment | Tempering,Hardening,Spheroidizing,Stress Relieving. |
| Standard | ISO,GB,DIN,JIS,ANSI,BSW |
| Manufacture Process | Heading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/Shipping |
| Sample | we can supply the samples for free,if the samples we have in stock |
| Lead time | 10-15 working days as usual,It will based on the detailed order quantity. |
| Carton size | 36*24*16 CM &36*24*12 CM |
| Pallet size | 110*100*90 CM |
| Warranty | we confirm our goods will satisfy your request of 100%, |
| After sales service | we will follow up goods for every customer and help solve problem after sales. |
Why choose us?
1. We have 15 years customized-order mechanical parts experience
2. Have our factory can be control quality & delivery time
3.We have our self mold Can be customized you want size and design
4. Can be visit our factory professional company & team & production facility will be More guaranteed,welcome to inquiry or order to us.
FAQ:
Q1. What is your terms of packing?A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?A: TT/ Paypal/ Western Union .
Small amount 100% TT payment . large amount T/T accept 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery? A: EXW, FOB, CFR, CIF,
Q4. How about your delivery time?A: Generally, it will take 7-10 days sample time. 15 to 25 days after receiving your advance payment. The specific delivery time depends on the items quantity and the quantity of your order.
Q5. Can you produce according to the samples?A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
Q9: Your are a trade company or producer?Our company is factory ,have our self machines,Design, research and development, production.
Certification 
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Hollow Bolts Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Hex Hollow Bolts are quality guaranteed. We are China Origin Factory of Stainless Steel Hollow Bolts. If you have any question, please feel free to contact us.
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