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.
2)hex socket cap screws
4)self tapping screws, thead forming screws
6) rivet nut
Product specifications comply with international standards, including GB, JIS, DIN, ANSI and ASME.
And we also can manufacture non-standard parts according to your drawings.
Our main products include stainless steel/ iron tapping screws, drywall screws, bolts, studs, washers, set screws etc. we can also customize non-standard parts. What’s more, we can supply kinds of bolts with round head, big flat head, countersunk head, washers, cheese head; tapping screws with flat head, countersunk head, round head, big flat head and washers; self-drilling screws with hexagon head, flat head and round head.
Our company supply all types of threaded rods and double ended studs.We also supply different kinds of fasteners,such as nuts,bolts,washers,etc....
We offer fasteners about grade 4.8-12.9(ANSI Gr2-Gr5); black, zinc plated, HDG, etc surface treatment; color box package, neutral carton package; Also, we can offer our customer stainless steel or brass fasteners.
Slotted countersunk head wood screws,
Cross recessed countersunk flat head screws, Hexagon head wood screws,Hexagon socket head cap screws,Cross recessed pan head tapping screws,Cross recessed pan head drilling screws with tapping screw thread,Pan head screws with cross recess,Furniture screws,Machine screw,Combine bolt,T-BOLTS
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 .