We carry out numerous tests and inspections to make sure that our High Tensile 8.8 bolt strength is of the highest caliber. The tests include the PMI test, mill test, IGC test (intergranular corrosion test), flaring and flattening test, micro test, macro test, and others. Our highly skilled crew follows industry standards when producing our goods. In order to fully satisfy our consumers, we work arduously to meet their needs.

 These steel grades are more affordable yet less durable. The core compressive strength in terms of Rockwell measurements is between B71 and 95, and the structural rigidity of the 8.8 Hex Bolt in a partially or fully hardened state is approximately 420 MPA for light carbon steel and 500 MPA for medium carbon steel. The 8.8 hardened metric bolts' mechanical roughness is increased by carburizing. These Grade 8.8 high-strength bolts and nuts are made by us in such a way that they have high tensile strength and perform well under various circumstances. To satisfy the requirements of each and every one of our clients, we offer this Grade 8.8 nut bolt specification and sizes. We use cutting-edge equipment and the best raw materials to make each of our goods.

 

High Tensile Bolts 8.8 Specification

Standards: DIN EN ISO 4014 & 4017 DIN 931 / 933 & IS 1364 / IS 1363

Size: Dia M 20 to 100 mm / Inch 3/4"to 3.1/2"

Finish: Plain / Zinc plated / Hot dip galvanized

 

High Tensile Bolts 8.8 Mechanical Properties:

Grades

Size Range

PS [MPa]

YS (min) [MPa]

TS (min) [MPa]

Hardness [Rockwell]

Class 8.8

Under M16

580

640

800

 

17-72

600

660

830

C23–34

 

The galvanized hexagon heads are one of the 8.8 High Tensile Bolts' distinguishing features. These heads are constructed of zinc or have zinc plating on them. The En 15048 Bolt can be coated, plated, or polished to the specifications of the customer or the intended application of the product. Because the fasteners are frequently marked with an "8.8" or have a set of three radial lines on the head of the 8.8 Galvanized Bolts, it is simple to identify 8.8 Stainless Steel Bolts.

 

Grade has many types such as;

·         8.8 – This is the one that has galvanized hexagon heads.

·         S – This grade means the fastener can sustain a stress of 45 to 49.9

·         4.6- this type of grade is not so strong compared to the 8.8 grade.

·         12.9 – This is used in jobs like securing engines.

·         R – This grade can sustain 40.8 to 45 metric tonnes.

 

The parameters for a high-tensile stud bolt include material, threads, surface polish, standard, and a lot more. Among the materials used in production are carbon steel, mild steel, alloy steel, and a variety of others. This received ratings of 8.8, 12.9, and 10.9. Fasteners with a high tensile.