They are one throw' hole Brass inserts. They can be potted in or molded. A straight knurl offers better torque out capabilities.

Brass Plastic Moulding Insert In Russia

Brass Plastic Moulding Insert Manufacturers In Volzhsky

Brass Plastic Moulding Insert Suppliers In Smolensk

Brass Plastic Moulding Insert Exporters In Saransk

Russia- Brass Plastic Moulding Insert.

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