we mainly produce GB5782/GB5783,di n933/din 931, ISO4017/ISO4014, din960/din961, grade4.8, 8.8, 10.9, dia: m6-m42, length: 12mm - 400mm.
hex bolts.Finish: plain, blue zinc, yellow zinc, white zinc, black.
DIN912 knurling socket head screw.
Packing according to the customer's requirement.
M3-M30 variety of nuts. Chinese GB52 standard, GB6170 high-strength nuts, galvanized nuts, black nuts, flange nuts, weld nuts, brass nut, nut standard steam, the international ISO standard, DIN standard, the United States ANSI standard, BS standard, Italy UNI standard and various shaped nut.
We are professional manufacturer for Standard and Nonstandard nut, roller, Screw fasteners and Multi-position type tungsten steel mold.
Mulit-Position nut forming machine and Comprehensive mould design and production(cutter, Sets bar....)
Professional nuts molding design technique from taiwan; mould manufacturing and maintainance.
High spead nutand spare part cold former machine with six segment and four segment.
Our products range from bolts, nuts to wood screws, machine screws, self-tapping screws, washers, rivets, anchors etc. according to DIN, ANSI, BS and JIS standard.
Washers, Screws, Bolts, Nuts, Threaded Rod, Blind Rivets
Gem-Year are producing all kinds of high quality products such as bolts, nuts, screws, drawn wire and other off-standard fasteners, which are according to GB, ANSI, DIN, UNI,JIS and ISO standards with yearly production output of 200,000 metric tons.