1. Plain Flat Washer

• Description: A round, flat disk with a central hole. Primarily used to distribute load of a threaded fastener like a bolt or nut.

• Materials: SS 304, SS 316, Mild Steel, High Tensile Steel, Brass, Nylon

• Sizes: M2 to M64 (ID), 0.5 mm to 5 mm thickness

• Standards: DIN 125 / ISO 7089 / IS 2016

• Applications: Structural assemblies, furniture, automotive parts, general engineering

2. Spring Lock Washer (Split Washer)

• Description: A helical coil washer that provides axial flexibility to resist loosening from vibration.

• Materials: Spring Steel, SS 304, Mild Steel

• Sizes: M2 to M36

• Standards: DIN 127 / IS 3063

• Applications: Electrical panels, machine tools, pumps, automotive

3. Internal Tooth Lock Washer

• Description: Features teeth on the inside diameter which bite into the screw head and mating surface.

• Materials: SS, MS, Spring Steel, Brass

• Sizes: M2 to M24

• Standards: DIN 6797 (Type I)

• Applications: Electronics, instrumentation, automotive assemblies

4. External Tooth Lock Washer

• Description: Teeth on the outside diameter increase grip and electrical contact.

• Materials: SS, MS, Spring Steel, Brass

• Sizes: M2 to M24

• Standards: DIN 6797 (Type E)

• Applications: Electrical connections, control panels, small motors

5. Countersunk (CSK) Washer

• Description: A beveled washer designed for use with countersunk screws for a flush surface.

• Materials: SS, MS, Brass

• Sizes: M3 to M20

• Standards: DIN 34815

• Applications: Architectural fittings, furniture, aerospace

6. Fender Washer

• Description: Has a larger outer diameter than standard washers for load distribution over a wide area.

• Materials: SS, MS, Nylon

• Sizes: ID M3 to M30; OD up to 75 mm

• Standards: ANSI B18.22.1

• Applications: Sheet metal, plumbing, automotive bodywork

7. Wave Spring Washer

• Description: A flat washer with a wave-like shape providing light pre-load or flexible spacing.

• Materials: Spring Steel, SS 304

• Sizes: M3 to M36

• Standards: DIN 137B

• Applications: Bearing preload, electrical contacts, axial spacing

8. Belleville Washer (Disc Spring)

• Description: Conical-shaped washer that applies high force in small space.

• Materials: Spring Steel, SS, HT Steel

• Sizes: M6 to M64

• Standards: DIN 2093

• Applications: Bolted joints under heavy load or vibration

9. Serrated Safety Washer

• Description: Serrations on both sides that grip both mating surfaces to prevent loosening.

• Materials: Steel, SS

• Sizes: M3 to M36

• Standards: DIN 6796

• Applications: Heavy-duty joints, motors, hydraulic assemblies

10. Bonded Sealing Washer (Rubber + Metal)

• Description: Metal washer with vulcanized rubber insert for sealing.

• Materials: Galvanized Steel, SS with NBR, Neoprene

• Sizes: M5 to M30

• Standards: ISO 1149

• Applications: Hydraulic fittings, plumbing, pressure vessels

11. Internal Tooth Lock Washer

• Description: Features a circular body with inward-facing teeth that bite into the surface and the fastener head for enhanced locking.

• Materials: SS 304, SS 316, Mild Steel, Spring Steel, Brass, Nylon

• Sizes: M2 to M36 (Metric), #2 to 1-1/2" (Inch)

• Standards: DIN 6797 Type I, IS 5372

• Applications: Electronics, electrical panels, instrumentation, and precision fastening

12. External Tooth Lock Washer

• Description: Similar to internal type but with outward-facing teeth that grip the surface for vibration resistance and locking.

• Materials: SS 304, SS 316, Mild Steel, Spring Steel, Brass

• Sizes: M2 to M36, #2 to 1-1/2"

• Standards: DIN 6797 Type A

• Applications: Automotive, switchgear, sheet metal fastening

13. Internal Star Tooth Washer

• Description: Lock washer with multiple star-shaped inner teeth providing locking in high-vibration environments.

• Materials: Spring Steel, Stainless Steel, Brass

• Sizes: M3 to M24

• Standards: ANSI B18.22.1

• Applications: Aerospace, electrical terminals, small device enclosures

14. External Star Tooth Washer

• Description: Star-type external teeth provide greater locking action, especially under bolt heads.

• Materials: Spring Steel, SS 304, SS 316

• Sizes: M3 to M24

• Standards: ANSI B18.22.1

• Applications: Gear assemblies, rotating components, fastening covers

15. Wave Spring Washer

• Description: Axially flexible washers that offer compensating spring force and absorb thermal expansion

• Materials: SS 301, SS 304, Carbon Spring Steel

• Sizes: M3 to M30

• Standards: DIN 137B, IS 6649

• Applications: Electronics, bearings, automotive parts

16. Belleville (Conical Spring) Washer

• Description: Conical washers used for maintaining tension in bolted joints

• Materials: Spring Steel, SS 304, SS 316, High Carbon Steel

• Sizes: M3 to M100

• Standards: DIN 6796, IS 3063

• Applications: Power transmission, heavy machinery, flanged pipe joints

17. Flat Round Washer (Large OD)

• Description: Flat washers with increased outer diameter to distribute load over a larger area

• Materials: SS 304, MS, Brass, Nylon

• Sizes: M5 to M100

• Standards: DIN 9021

• Applications: Woodworking, construction, soft material assemblies

18. Fender Washer

• Description: Very large OD washer ideal for load distribution over soft surfaces

• Materials: Stainless Steel, Mild Steel, Brass, Nylon

• Sizes: M4 to M20

• Standards: Custom / ANSI

• Applications: Sheet metal, plastic fastenings, insulation panels

19. Finishing Washer (Cup Washer)

• Description: Used with countersunk screws to provide a finished look and protect surfaces

• Materials: Stainless Steel, Brass

• Sizes: M3 to M10

• Standards: ANSI/ASME B18.6.6

• Applications: Decorative fastening, cabinetry, furniture

20. Sealing Washer (Bonded Neoprene/EPDM)

• Description: Metal and rubber bonded washers for sealing around bolts and screws

• Materials: Steel/Zinc + Neoprene, Stainless + EPDM

• Sizes: M4 to M24

• Standards: ASTM F436 + Custom

• Applications: Roofing, HVAC, water-proofing, panel installations