Naresh Steel & Engineering Co. can provide Cold Forged & Hot ForgedIndustrial Fasteners / Non Standard Industrial Fasteners with complete material compliance.
Bolts & Screws can be offer as both Metric & Imperial Inch sizes with Coarse, Fine, UNC, UNF, UN, BSW, Acme threads with half thread & full thread configuration.
Stud Bolts & Threaded Bars can be offer as both Metric & Imperial Inchsizes with Coarse, Fine, UNC, UNF, UN, BSW, Acme threads with Continuous Thread, Full Thread, Half Thread, Tap End Thread, Double End Thread & Custom End Thread configuration.
Steel Nuts can be offer as both Metric & Imperial Inch sizes with Coarse, Fine, UNC, UNF, UN, BSW, Acme threads.
Steel Washers can be offer as both Metric & Imperial Inch sizes with PTFE, XYLAN, ZINC, TEFLON, HOT DIPPED GALVANIZING, etc.
Types of coating for Industrial Fasteners / Non Standard Industrial Fasteners that can be offered are ELECTRO ZINC PLATING, HOT DIP GALVANIZING, PTFE FLUOROCARBON COATING, ALUMINIZING, CERAMIC FILLED FLUOROCARBON COATING, NICKEL PLATING, ZINC COATING, ELECTRO ZINC COBALT PLATING, ELECTRO ZINC NICKEL PLATING, PHOSPHATE COATING, ELECTRO LESS NICKEL PLATING, ELECTRO CADMIUM PLATING, DACROMERT 320 / 500 COATING, PICKLED PASSIVATED, SILVER PLATING, CHROME PLATING, etc.
Industrial Fasteners / Non Standard Industrial Fasteners can be avail in various grade materials as mention below:
Carbon Steel:Grade 8.8, 10.9, 12
Alloy Steel: ASTM A182 F1, F5, F9, F11, F12, F22, F91, F92, AISI 4130, 4140, 4340, EN19, EN24, ASTM A193 B7, ASTM A193, A194, ASTM B16, B5
Stainless Steel (SS): 409, 410, 420, 430, 416, 304, 304l, 316l, 316, 310, 347, 347H, 321, 321H, 317, 317L, 316LN, 446C, AISI 660, 254SMO, Alloy 254
Precipitation Hardening Steel (PH): 15-5PH, 17-4PH, 17-7PH, 13-8 MO
Duplex Steel (DSS): 2205, F51, UNS S31803, S32205
Super Duplex Steel (SDSS):2507, F53, UNS S32750, Zeron 100, F55, UNS S32760
Spiral wound gasket is manufactured by spirally winding a pre-formed metal strip and filler on the outer peripery of metal winding mandrels. The winding mandrel outside diameter forms the innner diameter of the gasket and the lamination are continually wound until the outer diameter is attaineds.
The inner and outer diameters is reinforced with several plies of metal with no fillers being introduced. This gives greater stability and provides better compression and sealing characteristics. Then by varying the ratio of the filler to the metal plies for a given gasket width density, and hence the compressibilty, can be controlled.
1. Spiral wound gasket without inner and outer ring suitable for tongue and groove flange and narrow width flange.
2. Spiral wound gasket with outer ring which accurately centers gasket on flange and acts as compression stop.
3. Spiral wound gasket with inner and outer ring, innner ring gives an additional compression limiting stop and provides heat and corrosion barrier protecting gasket winding and flange erosion.
4. Spiral wound gasket with metal jacketed partition bar welded to spiral wound gasket for use on heat exchanger.