railway fasteners: screw spikes, track bolts non-standard fasteners: U bolt,square bolts, wheel bolts, special bolts and screws, drive screws standard fasteners: ANSI/ASME B18.5 1990,DIN6914, ANSI/ASME B18.2.1 1996, DIN571,square bolts, hex bolts, wood screws, eye bolts,hex head screws, hex lag screws, round head square neck bolts, hex nuts stamping parts: pipes & hooks, hose clamp, welded stampings, clamps kit punching piece, cooling extrusion of cooling and heating, mechanical processing, non-standard piece, which are consistent with GB, DIN, ANSI and JIS, products of various specifications and max length of 1500mm.

1. Product Type Standards Fasteners: Compliant with DIN/IFI/JIS/ISO standards, covering core automotive products such as shoulder bolts, gear bars, spline screws, truck bolts, four-cornered screws, carriage screws, and T-bolts; chassis components, nuts, sleeves, exhaust pipe hooks, safety belt mandrel parts, and assemblies. Other products: rivets, irregular parts, customized products, mold-closing screws, special screws, and double bolts. 2. Product Specifications and Material Specifications: IFI standard (NO.4–1 inch, maximum length 8 inches), DIN standard (M4–M24, maximum length 200mm). Materials: carbon steel (compliant with ISO-898 and SAE J-429 standards), alloy steel, copper, aluminum alloy, and stainless steel (A2-50, A2-70, etc.). 3. Surface treatments include electro-galvanizing (trivalent chromium, hexavalent chromium), alloy plating (zinc-iron alloy, zinc-nickel alloy), painting (GEOMET, MAGNI, DELTA-TONE, etc.), electroplating of tin/nickel/copper, zinc phosphate, hot-dip galvanizing, and mechanical galvanizing. 4. The anti-loosening design covers chassis components, nuts, sleeves, exhaust pipe suspensions, main shaft parts of seat belts, assemblies, and various fasteners including bolts and nuts, carbon steel screws, stainless steel screws, and bimetallic screws.

non-standard fasteners, machine screws, self-tapping screws, insert nuts, rivets, hollow bolts & nuts.

1). Equipment/Machinery 2). Medical & Technological parts 3). The Automotive parts 4). The telecommunication parts 5). The power tool parts 6). Construction parts 7). The agricultural parts 8). Energy related part 9).electronic-products 10).house-hold products

nylon insert lock nuts-DIN985,DIN982,ANSI,BS,GB889,cap nuts one piece type-DIN1587, flange nuts-DIN6923,IFI D-21,JIS B1190,hex nuts-DIN934,weld nuts-JIS B1196,DIN928,DIN929,wing nuts,slotted nuts,T-nuts,tube sets and non-standard fasteners

stainless steel screws, screws, nuts, self-tapping screws, self-drilling screw, flange bolts,flange nuts, weld screws, wood screw, chipboard screw, non-standard fasteners, stainless steel bar and wire rod, auto fasteners,

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.

self-clinching fasteners self-clinching nuts self-clinching studs self-clinching standoffs panel fasteners floating fasteners captive fasteners self-locking fasteners pem fasteners riveting nuts floating nuts

Bolts, nuts, machine screws, self-tapping screws, plain washers, spring washers, internal teeth washers, external teeth washers, blind rivets, expansion bolts, U-bolts, rivet nuts and spring straight pins of stainless steel 304, 304L, 316, 316L, 310S and other fasteners; High strength alloy steel products of grade 12.9: socket hex bolts, hex bolts, set screws and stopper bolts; Riveting products: self-clinching nuts, self-clinching studs, self-clinching screws, faceplate screw; Products to repair of the screw thread: wire thread inserts and installation tools; Special nylon mushroom head screws; Custom-made non-standard fasteners.

We produce various types of high quality fasteners, including standard hex bolts and nuts (according to GB, DIN, ANSI, ISO, BS, UNI), and also special fasteners as well. The products are mainly applied to many industries such as automobile, construction, energy, communications, electronics, electrical appliance, etc. We can also customize a wide range of non-standard fasteners as well. Property class ranges from 4.8 to 10.9.Our main products: Hex nuts ( DIN934 ,DIN555,ISO4034,DIN915,ASTM 2H,IFI D-6,A563),Flange nuts (DIN6923),Nylon insert nuts(DIN985),Wheel nuts ,Hex bolts (DIN931,DIN933,ISO4014,ISO4017,DIN6914), Socket hex bolts (DIN912),T-BOLTS ,Washers(DIN125,DIN127,DIN6916),Thread rods (DIN975),Chipboard screws , Wood screws and so on .