Square mother, hardware equipment, fastening accessories.
Square in shape, with internal thread, can be used with bolts
Four square mother mostly USES all kinds of embossed wire production (generally lead brass, such as H59, 3604, 3602) and made of stainless steel, alloy material.
Tiansheng has been developing and producing fasteners professionally for 12 years. Welcome to visit and guide us.
Can be customized by drawing/sample.
