We can produce fasteners of full types and specifications, the standards include DIN, ANSI, JIS, BSI and so on.
The main products: hex nuts,square nut,hex head bolt,carriage bolt,roofing screws,plain washers,spring washers,machine screws,self-tapping screws
bolts, nuts, hardened washers, Spring Lockwashers, self drilling screws, tapping screw, brass wood screw, brass machine screw
Self drilling screws& Self tapping screw series, Hexagon bolts & nuts, Flange bolts & nuts, Foundation bolts, Sleeve anchor and Wedge anchors etc. Besides we can produce according to your design and drawings
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.
M3-M30 variety of nuts. Chinese GB52 standard, GB6170 high-strength nuts, galvanized nuts, black nuts, flange nuts, weld nuts, brass nut, nut standard steam, the international ISO standard, DIN standard, the United States ANSI standard, BS standard, Italy UNI standard and various shaped nut.
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.
Hex head bolts and screws, High strength bolts for Structural application, Full thread stud bolts, Double-end stud bolts , Socket head cap/set screws, Welded stud, Anchor bolts, U bolts sets, Clamp sets, Insulation clamp sets.
Hex nuts, Heavy hex nuts, High strength nuts
for Structural application, lock nuts
Plain washer, spring washer, square taper
API 20E BSL1、BSL2、BSL3 Bolts and Nuts
Lederer has been one of the leading suppliers of stainless steel fasteners for more than 40 years and offers more than 20,000 different articles direct from stock:
- screws, pins, nuts, rings, washers
- made from stainless steel, carbon steel and non-ferrous materials （A4-80、Duplex Stainless Steel）
- standard and designed parts
- DIN, EN, ISO and inhouse
- special parts by drawings and special materials
Lederer is big enough to realise even substantial and elaborate projects (we will be glad to provide references), and small enough to react quickly, flexibly and unbureaucratically to market and customer requirements.
Our main products consist of three major series-threaded rods, bolts and nuts, covering over 2000 varieties. The products are widely used in many industries, such as machinery, construction, electronics, electrical appliance, etc.
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