High strength blue PTFE ASTM F436 washer

Bolt, Full Thread Stud, Stud, Stud Bolt, Threaded Rod

      ASTM F436 Classification of American Steel Structural Gaskets, Generally Processed with 45 # Steel Plate

      The design concept of ASTMF436 structural washers is to use A325 to construct screws, studs, and nuts, which are generally used in external engineering buildings.

      F436 flat pads are generally used in building structural design together with A325 and A490 bolts. The name F436 also represents that this type of flat pad can be used in a variety of applications, bringing a hardness standard of high strength and long-term durability throughout. All workers who need to meet the requirements of ASTM size specifications for mechanical equipment, chemical industry, or specification dimensions need to choose F436 flat washers, as it is a strongly recommended solution, except for low-carbon steel bolts.

     The washer provides a smooth load-bearing surface under the head of the nut or bolt. These special washers are hardened or carburized to obtain additional strength while maintaining a smaller size than standard F844 flat washers. F436 is the specific requirement of ASTM for hardened and heat treated gaskets. These washers are designed for very special applications and performance in very special environments,High Strength Heavy Duty,High Strength F436 Gasket,High Strength Washer,High strength blue PTFE ASTM F436 washer.

Gasket is a mechanical seal between two objects, which is usually used to prevent pressure, corrosion, and natural thermal expansion and contraction of pipeline leakage between two objects. Due to the impossibility of perfect machined surfaces, the use of gaskets can fill in the irregularity. Gaskets are usually made of sheet materials, such as pad paper, rubber, silicone rubber, metal, cork, felt, Neoprene, Nitrile rubber, glass fiber or plastic polymer (such as polytetrafluoroethylene). Gaskets for specific applications may contain asbestos.