Fasteners
Manufacturer, Exporters & Supplier of
Screws
Screws
Screws are also male threaded fasteners mostly related and clearly undistinguished from bolts. While bolts mate with corresponding nuts, screws do not need any mating fasteners. Unlike bolts, screws need not have plain non-threaded shank. Screws may have tapered threads so as to facilitate succession into the female component.
Screws must always be turned to assembly the joint. Unlike bolts, screws are often smaller diameter fasteners which are produced in cold forged condition. Large diameter screws can be produced economically from bar stock or can be hot forged, followed by machining and threading.
Riddhi Siddhi Impex is a leading manufacturer, supplier and exporter of pipe fittings, forged fittings, tube fittings, dairy fittings, valves, Shims, Washers, Fasteners, Round Bars, Gaskets and flanges.
Types of Industrial Screws
- Hex Head Screws
- Socket Head Screws
- Square Head Screws
- Flange Head Screws
- Button Head Screws
- Round Head Screws
- Oval Head Screws
- Hammer Head
- Flat Head Screws
- Truss Head Screws
- Dome Head Screws
- Pan Head Screws
- Cheese Head Screws
- Knurled Head
- Mushroom Head
- Fillister Head
- T Head Screws
- Countersunk Screws
- Set Screws
- Coach Screws
- Mating Screws
- Wood Screws
- Butterfly Screws
- Self Drilling SMS
- Thread Cutting
- Thread Forming
- Coach Screws
- Thumb Screws
Thread Types
- Unified National Fixed
- Unified National Coarse
- Unified National Fine
- Unified National Extra Fine
- ISO Metric
- British Standard Fine
- British Standard Whitworth
- ACME
Alloy Categories
- Alloy Steel
- Carbon Steel
- Stainless Steel
- Hastelloy
- Inconel
- Incoloy
- Nickel
- Duplex Steel
- Super Duplex
- Titanium
- Monel
- Brass
- Aluminum Bronze
- Phosphor Bronze
- Silicon Bronze
- Tantalum
- Zirconium
Dimension Standards
- ASME B18.2.1
- ASME B18.2.3.2M
- ASME B18.2.3.5M
- ASME B18.2.3.6M
- ASME B18.2.3.7M
- ASME B18.2.3.10M
- ASME B18.5
- ASME B18.9
- ASME B18.5.2.2M
- ASME B18.5.2.3M
- ASME B18.10
- ASME B18.15
- ASME B18.31.5
- DIN 931
- DIN 6914
- DIN 608
- DIN 444A
- DIN 444B
- DIN 478
- DIN 580
- DIN 603
- DIN 604
- DIN 607
- DIN 3570
- DIN 6921
- DIN 11014
- ISO 4014
- ISO 4016
- ISO 4162
- ISO 8100
- ISO 8102
- ISO 15071
- ISO 8677
- ISO 8765
- IS 1363-1
- IS 1364-1
- IS 6639
- IS 12427
- IS 15582
Material Specifications
- ASTM A193
- ASTM A307
- ASTM A320
- ASTM A325
- ASTM A354
- ASTM A449
- ASTM A453
- ASTM A490
- ASTM A540
- ASTM A1014
- ASTM A1082
- ASTM F468
- ASTM F593
- ASTM F2281
- ASTM F3125
Coatings
- PTFE(Teflon)
- Hot Dip Galvanizing
- Aluminum Zinc Flake
- Zinc Phosphating
- Manganese Phosphating
- Metallic Zinc
- Nickel Plating
- Chrome Plating
- Cadmium Plating
- Silver Plating
- Tin Plating