ZHENJIANG BAOHAI SHIPS HARDWARE CO.,LTD, is a manufacturer and exporter of screws in China. Our product as follows: 1.chipboard screws ,size: M3.0----M6.0 ,Length:12mm-----100mm 2.twinfast wood screws, size: 4----- 12,Length: 1/2"--------4" 3.drywall screws size: 6- 8,length: 1/2"---------------4" 4.wood screws size: 4----- 12,Length:1/2"------2 1/2" 5.self tapping screws 6.confirmat screw 7.NUTS AND BOLTS As above is our main product, If you are interested in it.please contact us.we will make faster reply to you!