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Standard Fasteners
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Application-Specific Fasteners
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Non-Standard Custom Fasteners
Bolts
Nuts
Screws
Studs
Washers
Press-in Riveting Fasteners
Riveting Technology
Threaded Inserts
PT Threaded Fasteners
CNC Lathe Parts 
External Serrated Lock Washers GB/T 862.2-1987
Dimensions: Φ2-Φ20
Standard Designation: GB/T 862.2-1987
Material Grade: 304Stainless steel
GB/T 862.2-1987
A part used for locking under the bolt head or nut
