Harsh Enterprises

Heavy Hex Bolts/Heavy hex screw are designed for use in a variety of high temperature, high strength industrial applications, such as with steel fabrication and general construction. They feature a thicker head than standard or regular hex bolts, and offer a greater bearing surface that distributes the clamping load over a wider area.

SPECIFICATIONS (CHEMICAL & MECHANICAL )

• METRIC -
  IS 1367 PART 3, ISO 898-PART 1, ASTM A193
• INCHES -
  BS 1768, BS 1083, ISO 898-PART 1, ASTM A193

A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out.

SPECIFICATIONS (CHEMICAL & MECHANICAL )

• METRIC -
  ASTM A193

Head for a screw or bolt with rounded top surface and flat lower surface. Holds screw or bolt to surface of an object. Designed into the screw or bolt. Can have various sizes and drive types. A cylindrical rod incised with one or more helical or advancing spiral threads, as a lead screw or worm screw

SPECIFICATIONS (CHEMICAL & MECHANICAL )

• METRIC -
  IS 1367 P-4