We can produce fasteners of full types and specifications, the standards include DIN, ANSI, JIS, BSI and so on.
The main products: hex nuts,square nut,hex head bolt,carriage bolt,roofing screws,plain washers,spring washers,machine screws,self-tapping screws
bolts, nuts, hardened washers, Spring Lockwashers, self drilling screws, tapping screw, brass wood screw, brass machine screw
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.
1. Series products of internal or external hex bolts, machine quality includes: 4.8, 6.8, 8.8, 10.9, and 12.9
2. Series products of stud bolts, machine quality includes: 4.8, 6.8, 8.8, 10.9, and 12.9
3. Series products of stainless steel internal or external hex bolts, includes: 6.8, 8.8
4. Series products of round ellipse bolts, machine quality includes: 6.8, 8.8
5. All kinds of screw cap, plain cushion, machine screw nail, fiberboard nail and lag bolt. Our company can produce other non-norm parts according to clients’ demands.
flange nuts,self-drilling screws,chipboard screws,lag screws, non-standard bolts,nuts and auto fasteners.
hex bolts,hex nuts,Egg neck bolts
stud bolt carriage bolt track bolt
anchors (including metal and plastic) and plugs,bolts, nuts, screws, rivets, nails, clips, hooks, thread rods, studs, washers, stainless steel bolts, cap head nib bolts, automotive bolts etc. according to DIN, ASTM, ANSI/ASME ,ISO, GB,BS, JIS standard. We also welcome special orders made according to customer's drawings.
Our entire range of fasteners is made of carbon steel, alloy steel and stainless steel, aluminum, brass, silicon bronze and other special materials. Production is carried out in compliance with ISO, DIN, BS, ANSI, JIS specifications
Our products various different specifications and types: hexagonal-headed bolts, screws, nuts, washers, anchors, rivets and some larger scales items, produced as per requirements and demand, with M5 to M74 (diameter), and 10mm to 2000mm (length), and meet kinds of standards from abroad as follow:
1) Germany (DIN)
2) British System (BS)
3) American System (ANSI/ASME)
4) Australian System (AS)
5) Japanese System (JIS)
6) Guo Biao (GB, China National Standard)
Therefore, our products are well-sold among the whole country, moreover, they are also widely spread all over the world, including Europe, North-America, Mid-east, Japan, Etc.
The product mainlyinvolves GB code, the beautiful sign, the German sign, the date sign,the English sign, the ISO standard, the material mainly has 201, 302,304, 316 and so on the material, the product including the screw(M4~M20, length 6~300mm), the screw rod (M4~M20, length 10~1000mm),(M4~M20, length 100~2000mm), the machine screw (M3~M8, length4~60mm), the nut (M3~M30), from attacks the nail (ST2.2~ST6.3, length4.5~45mm); Gasket (diameter Phi 3~ Phi 100mm, thickness 0.6~6mm),about daily production end product 30 tons.