... products are bolts, screws, nuts, machine screws, plain washers, spring lock washers, wood screws, tapping screws, drilling screws, chipboard screws, drywall screws, furniture screws, rivets, anchors and many other hardware ... conformity with DIN, ANSI, AS, BS, JIS, GB and ISO standards, non-standard specifications or upon our customers' special requirements, in grades ...