1) Size: M3-M64,No.6-1-1/4
2) Standard: ANSI/ASME, DIN, BS, IFI, JIS ISO, GB and NON STANDARD,
3) Finish: PL, ZP, HDG, sheradizing, plain, black oxide, Zinc plated (blue, white and yellow) chrome plated, Cr+3, Cr+6,H.D.G, Nickle-plate, Dacromet, sheradizing.
4)Material:Carbon steel,Stainless steel,brass (70#,SS304,SS316,Q235B,45#,50#,65Mn)brass, phosphorus copper ,beryllium copper, Aluminium, alloy steel
5)Mainmarket:U.S.A,UnitedKingdom,Canada,Turkey,Saudi Arabia,Australia,Korea,Japan.Singapore,south Africa
Choices and channels of both sides with certain Angle, if use flat washer and so on can cause nut only pinned small plane, but are not very smooth to tighten bolts, and fangxie washer and channel, fangxie gasket are Angle gasket, so they could tighten bolts.