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Serrated Stear Washer

Spring Lock Washer

Serrated Star Washer are available in Stainless Steel, Plated Steel, or Phosphor Bronze as standard. These "shake-proof" serrated washers are fitted internally to the equipment, before the application of a locknut and act as an anti-vibration device to prevent the cable gland and locknut arrangement from loosening in service. Serrated Star Washers are of major importance in situations where vibrating heavy machinery, such as mud shakers, pumps and drilling equipment is operating aboard mobile or fixed onshore and offshore drilling units.

Serrated Star Washers are available in Grade 316 L SS and also used for electrical installation and commissioning projects.

We Manufacturer premium quality standard & customized washers from various metals & metal alloys as per ASTM/ASME/DIN/DIN Standards & Specifications. We produce all types of washers in almost all shapes & sizes. We also provide passivisation, quality coating further processing as per client's requirement.
 
Serrated Star Washer Dimensions (Internal Tooth)
Nominal
Washer Size
A B C
Inside Diameter Outside Diameter Thickness
Min. Max. Max. Min. Max. Min.
2 0.086
4 0.112
6 0.138
8 0.164
10 0.190
12 0.216
1/4 0.250
5/16 0.312
3/8 0.375
7/16 0.438
1/2 0.500
5/8 0.625
1/8 Pipe

0.089
0.115
0.141
0.168
0.195
0.221
0.256
0.320
0.384
0.448
0.512
0.640
0.425
0.095
0.123
0.150
0.176
0.204
0.231
0.267
0.332
0.398
0.464
0.530
0.663
0.410
0.200
0.270
0.295
0.340
0.381
0.410
0.478
0.610
0.692
0.789
0.900
1.071
0.615
0.175
0.255
0.275
0.325
0.365
0.394
0.460
0.594
0.670
0.740
0.867
1.045
0.595
0.015
0.019
0.021
0.023
0.025
0.025
0.028
0.034
0.040
0.040
0.045
0.050
0.022
0.010
0.015
0.017
0.018
0.020
0.020
0.023
0.028
0.032
0.032
0.037
0.042
0.017
 
Serrated Star Washer Dimensions (External Tooth)
Nominal
Washer Size
A B C
Inside Diameter Outside Diameter Thickness
Min. Max. Max. Min. Max. Min.
4 0.112
6 0.138
8 0.164
10 0.190
12 0.216
1/4 0.250
5/16 0.312
3/8 0.375
7/16 0.438
1/2 0.500
5/8 0.625
0.115
0.141
0.168
0.195
0.221
0.256
0.320
0.384
0.448
0.513
0.641
0.123
0.150
0.176
0.204
0.231
0.267
0.332
0.398
0.464
0.530
0.663
0.260
0.320
0.381
0.410
0.475
0.510
0.610
0.694
0.760
0.900
1.071
0.245
0.305
0.365
0.395
0.460
0.494
0.588
0.670
0.740
0.880
1.045
0.019
0.022
0.023
0.025
0.028
0.028
0.034
0.040
0.040
0.045
0.050
0.015
0.016
0.018
0.020
0.023
0.023
0.028
0.032
0.032
0.037
0.042
 
Specifications:  
MFG. Standard IS/ANSI/ASME/DIN
Range Size M3 - M48 and also available in all customized sizes.
Material(All Grade) Mild Steel, Stainless Steel, Carbon Steel, Alloy Steel, Brass, Copper, Duplex & Super Duplex Nuts, Aluminium, Hastelloy, Incoloy, Inconel, Monel.
Nickel Alloy
Grade: UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625), UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)
Stainless Steel: Standard: ASTM / ASME A/SA 240
Grade: 304, SS347, SS316, SS321, A2, A4
Alloy Steel: Standard: ASTM / ASME / F436
Duplex Steel:
UNS No.
S31803, S32205
Coating
Hot Dipped Galvanizing
Phosphate
Teflon
Xylon
Zinc
Cadmium
Surface Finish Blackening, Cadmium zinc plated, Galvanized, Hot dip Galvanized, Nickel Plated, Buffing, etc.
Application All Industry
Die forging Closed die forging, open die forging, and hand forging.
Threads Metric, BSW, BSF, UNC, UNF, and as per costumers requirement.
 
Washers
Commercial Flat Washers | USS & SAE Washers | Plain Big OD Washer | Spring Washer Heavy Duty
Tab Washer | Special Washers | Spring Lock Washer | Plain Small OD Washer | Serreted Star Washer