Our products range:bolts, nuts, wood screws, machine screws, self-tapping screws, spring washers, flat washers, anchors etc. according to DIN, ANSI, BS and JIS standard. Made from carbon steel at Grado 4.8, 6.8, 8.8, 10.9, 12.9 with ACABADO of plain, black, zinc(bright/yellow), brass, nickel, chrome, etc.
hex bolt, self-drilling screw
Various kinds of bolts, screws, hex nuts, flange nut, plain washers, spring washers, wood screws, thread rods and so on according to DIN, BS, ANSI/ ADSI, NFE, GB and ISO standards.
Materials: carbon steel, stainless steel and copper with brüniert zinc plated, galvanized and nikel plated in the surface.
Products: screws, bolts, nuts, washers, pins, rivets and so on.
Our products are widely used in the areas of energy, electron, wiring, mechanism, chemistry, metallurgy, mould, hydraulic pressure, cars and so on.
We can also manufacture non-standard fasteners according to guests’ inquiries.
Our products have passed the authentication of ISO9001, QS9000 and other international standards.
L type foundation bolts,T type bolts and nuts,standard fasteners,metro bolts,high strength bolts nuts and washers,expressway guardrail bolts and nuts,concrete bifurcation pillow bolts,non-standard screws,hex sockect cap bolts
High strength standard and non-standard parts for automobiles and motor-cycles, and others.
Especially, wheel bolt,wheel nuts,flange bolts,flange nuts,hex head bolt,screws,self-tapping screws,hex nuts,anchor bolts,special fastener,etc.
Main grade 8.8 and up.
all kinds of hex socket head bolts, hex bolts, carriage bolts, double end studs, anchor bolts, U bolt, T bolt, track bolts, flange bolts, guardrail bolts, threaded steel bolts and a variety of high strength non-standard fasteners, various specifications of standard and non-standard nuts, washers and studs. Grade range: Grade 4.8 to Grade 12.9.Materials: steel and stainless steel. Surface treatment: zinc plated, black, hot dip galvanizing, plain and so on. DIN931 DIN933
Hex bolt stud rod
Bolts and Screws:
Hex Socket Head Cap Screw,
Hex Socket Head Set Screw,
Hex Socket Flat Head Screw,
Hex Socket Button Head Screw,
Hex Socket Head Shoulder Screw,
Hex Head Bolts
Wheel Hug Bolt
Drop in Anchor,
ISO, DIN, BS, ANSI, ASME, JIS, GB, other standard bolts, screws and standard parts & non-standard fasteners
production and sales of stainless steel self tapping screws,Mechanical screws,nuts, rivets,washers（plain washers and spring washers）,wedge anchor, stainless steel undercut anchor, aluminum extrusions, expansion screws and other standard or non-standard fasteners and curtain wall accessories.
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.