https://bossscrew.en.taiwantrade.com/
Boss Precision Works Co., Ltd. (BOSS), established in 1994, is a professional OEM/ODM supplier of fasteners, especially construction screws, self-drilling screws, self-tapping screws, and stainless steel screws.
Backed by experienced satellite factories and equipped with quality-control laboratory and packaging facility, the company is capable of maintaining consistent and superior quality but at the same time lowering production costs.
Specification Material: carbon steel, stainless steel, brass, aluminum Diameter: #0 ~ #17 or M2 ~ M6.3 Length: 1/4" ~ 8" or 6mm ~ 200mm Standard: IFI, DIN, JIS, BS
Double Countersunk, Bugle Head, Flat Head, Wafer Head, Mod. Truss Head, Round Washer Head, Hex Washer Head, Pan Head, Trim Head, Oval Head
Specification Material: Carbon steel, stainless steel Head Type Double Countersunk, Bugle Head, Flat Head, Wafer Head, Mod. Truss Head, Round Washer Head Drive Type Phillips, star, square Thread Type Twinfast (Fine) thread, coarse thread, hi-low
Based on the JIS (Japanese Industrial Standards) produce for every customer have stringent requirements of JIS screws.