**Black Socket Head Shoulder Hex Head Cap Screw/Bolt**
**Model No.:** WJ0120-4
**Grade:** 6.8
**Trademark:** Other
**Transport Package:** Plastic Bag + Carton Box + Wood Pallet
**Specification:** M6
**Origin:** China
**HS Code:** 7318150000
**Product Description:**
The Black Socket Head Shoulder Hex Head Cap Screw/Bolt is a high-quality fastener designed for a wide range of industrial and mechanical applications. It is known for its durability, precision, and resistance to wear. The black finish not only enhances the aesthetic appeal but also provides additional protection against corrosion.
**Standards:**
DIN, ANSI, JIS, BSW, ISO, and GB
**Raw Materials:**
- Carbon steel: C1006, C1008, C1010, C1016A, C1018A, C1022, C1035K, C1045K
- Iron: 1213, 12L14, 1215
- Stainless steel: SS201, SS202, SS302, SS303, SS304, SS316, SS410, SS420, SS430
- Alloy steel: SCM435, 10B21, 40Cr
- Brass or brass alloy: H63 (CuZn37, C2720), H65 (CuZn35, C2700), H68 (CuZn33), H70 (CuZn30, C2600), H90 (CuZn10, C2200)
- Bronze: C51000, C52100, C54400
- Aluminum or aluminum alloy: Al6061, Al6063
- Titanium and titanium alloy: TAD, TA1–TA8, TB2, TC1–TC10
- Silver and silver alloy: AgCu3, AgCu7.5, AgSn3^5, AgPb0.4^0.7, AgPd3^5, AgNi10
**Surface Finish:**
- Zinc-plated, nickel-plated, brass-plated
- Tin-, black-, copper-plated
- Hot-working, hardness up to 6.8/8.8, 9.8, 10.9, 12.9 grades
**Size:**
M0.8 – M20, and can be produced according to customer's specific requirements
**Heat Treatment:**
Material modification and carburizing
**Manufacturing Process:**
Wire drawing, cold heading, threading, heat treatment, surface plating, and packing
**Sample Availability:**
Samples are available upon request
**Port:**
Shenzhen, China
**Packing:**
Carton packing with inner sealed polybag and stripe pack on the surface, or pallet packing
**Minimum Order Quantity:**
We accept test orders of small quantities
**Price Terms:**
FOB, CIF, CFR, EXW
**Trade Terms:**
Payment terms include T/T, L/C, Western Union, PayPal, etc.
**Lead Time:**
10–35 days, depending on order quantity and detailed requirements
**Performance:**
Features sharp teeth that dig into surfaces to resist vibration and keep screws tight
**Certifications:**
ISO standard, SGS report, material quality report, plating certification, and finished inspection report
**After-Sales Service:**
We strictly follow up on all customer requests and help solve any post-sale issues
**Notice:**
For customized products, please provide details such as size, quantity, grade, and finish
**FAQs:**
**Q1: Are you a manufacturer or trading company?**
A: We are a professional manufacturer specializing in fasteners. We have over 11 years of experience in producing bolts, studs, rivets, pins, and stamping parts. Our factory is located in Dongguan City, Guangdong Province, China, near Shenzhen or Guangzhou.
**Q2: How about your price?**
A: As a non-standard screw fastener factory, we offer direct custom production. By working closely with raw material manufacturers and processing factories, we eliminate intermediate costs and ensure high quality at a reasonable factory price.
**Q3: What kind of materials do you use for producing the bolt?**
A: We use carbon steels (low and medium carbon), alloy steels, stainless steel, and brass.
**Q4: Do you support customized products?**
A: Yes, we can produce based on your drawings.
**Q5: Do you produce standard or non-standard bolts?**
A: We make both customized and standard bolts, including ANSI and DIN standards.
**Q6: Can we print our own logo?**
A: Yes, we can customize it according to your request.
**Q7: Can you provide samples?**
A: For regular products, we offer free samples. For customized bolts, tooling and proofing charges may apply. Free samples do not include shipping costs.
**Q8: How do you ensure quality throughout the process?**
A: We implement strict ISO quality control and perform 8 steps of checking during production. We have in-house QC daily and conduct random inspections by third parties.
**Q9: What is the lead time for the product?**
A: Generally 30–50 days after the deposit.
**Q10: How about the payment term?**
A: Payment terms include T/T, cash, Western Union, or L/C.
**Q11: Do you have after-sales service?**
A: Of course, you can contact us anytime for assistance.
This product is ideal for use in automotive, construction, machinery, and other industries where strong and reliable fasteners are required. Whether you need standard or custom-made screws, we are here to meet your needs with quality and efficiency.
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