Zinc - Plated Hex Socket Bolt for Machinery Assembly

• Customization: Available
• Head Style: Hex Socket
• Surface Treat: Galvanized
• Model NO.: St24
• Application Field: Machinery/Automotive
• Rust Resistance: Salt Spray 72h
• Usage Scenario: Multi - Purpose
• Product Form: Standard Part
• Tensile Grade: 8.8
• Corrosion Level: High Resistance
• Certification: ISO 9001
• After - Sales Service: 1 Year Warranty
• Temperature Adapt: -20ºC - 120ºC
• Transport Package: Shockproof Foam + Wooden Case
• Specification: Customizable
• Trademark: Zeyang
• Origin: Ningbo, Zhejiang, China
• Production Capacity: 50000PCS/Year

Product Description

This hex socket bolt is made of high-quality carbon steel (Q235B) as the base material, processed through cold heading, thread rolling, and hot-dip galvanizing processes to form a silver-gray, high-gloss metal fastener. Its main body consists of a hex socket head (with an across-flat dimension of 6-12mm), a threaded shank (with thread specifications ranging from M6 to M12), and a cylindrical transition section. The thread precision meets the 6g class of GB/T 5782-2016 standard, and the galvanized layer thickness is ≥80μm. With high-precision threads, long-lasting rust resistance, and multi-scenario adaptability, it is widely used in bolt connection scenarios in fields such as mechanical equipment, automobiles, construction, and furniture.
 

Core Values

 

• Reliable connection guarantee: High-precision threads combined with a hex socket design ensure tight and non-loosening connections (stable preload), reducing equipment failure rates.
• Multi-scenario coverage: Covering four major industrial and civil fields from mechanical manufacturing to furniture assembly, it reduces cross-scenario replacement costs.
• Long-lasting durability: The hot-dip galvanized layer (no rust after 72-hour salt spray test) and high-quality carbon steel base (tensile strength ≥640MPa) extend the service life by 2-3 times compared to ordinary carbon steel bolts.
• Efficiency improvement: The easy installation of the hex socket (single bolt assembly ≤1 minute) combined with threaded guide blind insertion positioning shortens the assembly cycle by more than 15%.

Product Parameters

Parameter Item	Specification
Thread Specification	M8×1.25
Total Length (L)	50mm
Hex Head Width (s)	8mm
Thread Pitch Dia (d2)	Φ7.18mm
Galvanized Thickness	≥80μm
Tensile Strength	≥8.8 Grade (≥640MPa)
Surface Roughness (Ra)	≤0.8μm

Detailed Photos

Applicable scenarios

Q1. What customization services do you offer?
A1: We offer custom machining based on your drawings or samples, including material selection, size adjustments, shape design, surface treatments (anodizing, plating, painting, etc.), thread processing, laser engraving, and more to meet various industry needs.

Q2. Can you manufacture parts based on my design drawings?
A2: Yes, we can manufacture parts according to your CAD drawings or 3D models. Please provide detailed design files such as STEP, IGES, DWG, or PDF format to ensure precise manufacturing.

Q3. What material options do you offer?
A3: We offer a wide range of materials, including aluminum alloys (6061, 7075, etc.), stainless steel, carbon steel, brass, copper, titanium alloys, and plastics (POM, nylon, etc.). You can choose the most suitable material for your needs.

Q4. What is your machining accuracy?
A4: Our CNC machining accuracy can reach ±0.01mm. Specific tolerance requirements can be adjusted according to customer needs and confirmed before production.

Q5. How do you ensure product quality?
A5: We implement strict quality control measures, including raw material inspection, in-process monitoring, final dimension inspection, and surface finish checks, ensuring that all products meet customer requirements.

Q6. What is your production lead time?
A6: Production time depends on the complexity of the parts and order quantity. Typically, small batch orders take 7-15 days, while larger orders will have a specific lead time confirmed after evaluation.

Q7. Do you support small batch orders?
A7: Yes, we accept small batch custom orders. The minimum order quantity depends on the complexity and type of product. Feel free to contact us for more details.

Q8. How do you ship orders? Do you support international shipping?
A8: We offer multiple shipping options, including DHL, FedEx, UPS, sea freight, and air freight, with worldwide delivery available. You can choose the most suitable shipping method based on your needs.

Q9. How can I get a quote?
A9: You can submit an inquiry through our website or contact us via email with your product drawings, material requirements, order quantity, and any special requests. We will provide a detailed quote within 24 hours.

Q10. Do you provide after-sales service?
A10: Yes, we offer comprehensive after-sales support, including product quality assurance and installation guidance. If you encounter any issues, please feel free to contact our customer service team.