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Home / Products / Bolts / Hex Head Bolts / Grade 8.8 Carbon Steel, Alloy Steel Hex Head Bolts
Grade 8.8 Carbon Steel, Alloy Steel Hex Head Bolts

Grade 8.8 Carbon Steel, Alloy Steel Hex Head Bolts

Diameter (d):

  • M3
  • M4
  • M5
  • M6
  • M7
  • M8
  • M8-1
  • M10
  • M10-1
  • M10-1.25
  • M12
  • M12-1.25
  • M12-1.5
  • M14
  • M14-1.5
  • M16
  • M16-1.5
  • M18
  • M18-1.5
  • M20
  • M20-1.5
  • M22
  • M22-1.5
  • M24
  • M24-2
  • M27
  • M30
  • M30-2
  • M33
  • M36
  • M36-3
  • M39
  • M39-3
  • M42
  • M48

Length (L):

  • 6
  • 8
  • 10
  • 12
  • 14
  • 15
  • 16
  • 18
  • 20
  • 22
  • 25
  • 30
  • 35
  • 40
  • 45
  • 50
  • 55
  • 60
  • 65
  • 70
  • 75
  • 77
  • 80
  • 85
  • 90
  • 92
  • 95
  • 100
  • 103
  • 105
  • 110
  • 115
  • 120
  • 125
  • 130
  • 140
  • 145
  • 150
  • 155
  • 160
  • 170
  • 180
  • 185
  • 190
  • 200
  • 210
  • 215
  • 220
  • 230
  • 235
  • 240
  • 250
  • 260
  • 270
  • 280
  • 290
  • 295
  • 300
  • 310
  • 320
  • 340
  • 350
  • 360
  • 370
  • 380
  • 400

Finish:

  • Blackened
  • Blue And White Zinc
  • Dacromet
  • Black Zinc
  • True Color
  • Nickel Plated
  • Color Zinc
  • Hot Dip Galvanized
  • Colored Zinc (Trivalent)
  • Chrome
  • White Zinc
  • Zinc-Nickel Alloy True Color
  • Blackened + Glued
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Specification

Description

All Specifications:

Hexagonal Bolts
Standard: DIN, GB, HG, JISB
Category: ANSI/ASME B18.2.1, DIN931, DIN933, DIN933(L39.7-40.3), DIN933, DIN960, DIN961, GB1228, GB21, GB27-76, GB27-88, GB30, GB31.1,GB32.1, GB5780, GB5781, GB5782, GB5783, GB5785, GB5786, GB838 or according to customer special demand.
Diameter: M2-M64,1/4-20,1/4-28,3/8-16,5/16-18,5/16-24,3/8-24,7/16-14,7/16-20,1/2-12,1/2-13,1/2-20,9/16-12,5/8-11,5/8-18,3/4-10,3/4-16,7/8-9,1-1/8-12,1-1/8-7,1-1/4-7,1-1/2-6,1"-8,2"-4.
Grade: Class 4.8, 8.8, 10.9; A2-70, A4-70; US grade 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
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 & South 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.

Hex head bolts are standard fasteners with hexagonal heads and machine threads. The 8.8 grade indicates medium-carbon steel that has been quenched and tempered, providing a good balance between strength and ductility. These bolts have a tensile strength of 800 MPa and a yield strength of 640 MPa, making them suitable for high-stress applications in construction, automotive, and heavy machinery industries. The hexagonal head design allows for easy wrench or socket installation, ensuring a secure and tight fit. Available in various lengths and diameters, they typically feature a partially threaded shank to provide robust grip and alignment. Additionally, these bolts are often coated with zinc or other corrosion-resistant materials to enhance durability in harsh environments. Hex head bolts grade 8.8 comply with international standards such as ISO 4014 and 4017, ensuring reliable performance across various applications.

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, Alloy Steel Hex Head 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, Alloy Steel Hex Head 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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