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Grade 8.8 Carbon Steel Carriage Bolts

Diameter (d):

  • M5
  • M6
  • M8
  • M10
  • M12M
  • 16

Length (L):

  • 16
  • 20
  • 25
  • 30
  • 35
  • 40
  • 45
  • 50
  • 55
  • 60
  • 70
  • 80
  • 85
  • 100
  • 120
  • 140
  • 160
  • 190
  • 200
  • 220
  • 250
  • 280
  • 300

Finish:

  • Blackened
  • White Zinc
  • Hot Dip Galvanized
  • White Zinc
  • Zinc-Nickel Alloy True Color
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Specification

Description

Round Head Bolts
Standard: DIN, GB
Category: ANSI/ASME B18.5, DIN603, GB12, GB14, GB801, US Round Head Square Neck Bolts, Small Half-round Head Square Neck Bolts or according to customer special demand.
Diameter: M4, M5, M6, M8, M10, M12, M14, M16, 1/4-20, 5/16-18, 3/8-16, 1/2-13, 5/8-11
Grade: Grade 4.8,8.8, A2-70 A4-70 F593C Grade 4-12, U.S. Grade 2,5,8 or according to customer special demand.
Material: 1.Carbon steel: C1006,C1008,C1010,C1018A,C1022,C1035K,C1045K, etc.
2.Stainless steel: SS301 SS302,SS303,SS304,SS316,SS410,SS416,SS420,SS430, etc.
3.Steel:C15,C35,C45(K1045)S45C,C46(K1046),C20, etc.
4.Copper:Brass(C3602,C3604,H59,H62,H65,H68,H70,H90,etc. Phosphor bronze, Silicon bronze, Red copper, Beryllium copper Copper, etc.
5. Iron: 12L13,12L14,12L15, etc.
6.Aluminium:AL6061,AL6063,7075, etc.
7. Titanium or titanium alloy: TAD, TA1-TA8, TB2, TC1-TC10, etc.
8.Silver or silver alloy:AgCu3,agCu7.5,AgSn3-5,AgPb0.4-0.7,AgPd3-5,AgNi10, etc.
9. Alloy steel: SCM435,10B21,40Cr, etc.
Thread: M, UNC, UNF
Finish: Plain, Black Oxide, Blue-White Zinc, Zinc Plated(Clear/Blue/Yellow/Black), Nickel, Chrome, Dacromet, Zinc Nickel.
Packing: Bulk in cartons + wood Pallet or according to customer special demand.
Application: Structural Steel; Metal Buliding; Mechanical Machine; Automobile; Home Decorating.
Certification: ISO9001, SGS, CTI, ROHS, IATF16949
Trade Term: FOB/CIF/CFR/EXW/CIP
Payment: T/T, D/A, D/P, West Union, Paypal, etc.
Lead Time: 3~15 days after the order is confirmed, it will based on the detailed order quantity.
Market: Europe / South&North America / East&South East Asia / Middle East / Australia etc.
Warranty: We confirm our goods will satisfy your request.
After Sales Service: We will follow up on the goods for every customer and help solve problems after sales.

Upgrade your construction and DIY projects with our high-quality 8.8-level carbon steel carriage bolts. Designed for strength and durability, these bolts are made from premium carbon steel, ensuring exceptional performance under high-stress conditions. The 8.8 grade indicates superior tensile strength, making them ideal for heavy-duty applications. Featuring a rounded head and a square neck, they provide a secure fit that prevents spinning during installation, ensuring a stable and reliable hold.

Our carriage bolts are resistant to wear, corrosion, and deformation, thanks to their robust construction and high-quality finish. Available in various sizes to meet your specific needs, they are perfect for wood-to-wood or wood-to-metal fastening in construction, furniture assembly, and more. Trust these bolts to deliver long-lasting strength and reliability in your projects, making them an essential addition to your toolkit. Choose 8.8-level carbon steel carriage bolts for unparalleled performance and peace of mind.

about us

Hangzhou Jiangxin Industry Co., Ltd. was established in 2004. It is a national high-tech enterprise and a scientific and technological enterprise in Zhejiang Province. It is a professional fastener manufacturer, integrating production, R&D, and sales. It has advanced fastener production equipment in the world and uses an advanced ERP system for management. Grade 8.8 Carbon Steel Carriage Bolts Suppliers and Factory.

The company has passed the IS09001 international quality management system certification and has distribution outlets and logistics distribution centers in East China. The company specializes in the production and operation of standard and non-standard parts such as German standard (DIN), American standard (ANSI, ASME), international standard (ISO), national standard (GB), Japanese standard (JIS), and British standard (BSW), high-strength bolts, and high-grade expansion bolts. The materials involve various carbon steels and stainless steels (304 and 316). The products are widely used in the fields of high-speed railway, automobile, ship, machinery, mold, electronics, and construction. Custom Grade 8.8 Carbon Steel Carriage Bolts. With its good performance, fast installation, beautiful appearance, stable compatibility, and many other advantages, it is favored by Chinese and foreign merchants.

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