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Square Headed Distance Bolt Material Grade 8.8 For Railway
Square Head Bolts are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head. ... They are commonly referred to as both bolts and screws and are designed to be driven with a wrench.
Item name:Distance bolt
Material: Carbon steel grade 8.8
Standard: Customized
Finish: Black
Application: Railway
Drawing of The Railway Bolts
Sample