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
Haiyan Hongrun Fastener Co., Ltd is a professional manufacture of producing 4.8, 8.8, 10.9 and 12.9 of the hexagonal flange bolt (including Prevent slippery tooth flange screws, wheel hub screw and Seat belt screw), high strength auto distribution fasteners and other kinds of non-standard special items.
L type foundation bolts,T type bolts and nuts,standard fasteners,metro bolts,high strength bolts nuts and washers,expressway guardrail bolts and nuts,concrete bifurcation pillow bolts,non-standard screws,hex sockect cap bolts
Main products: Finished hexagon head bolts conforming to national standards including GB30-76, GB21-76, GB5780-GB5783-86(Grade 4.8, Grade 8.8), diameter is M6-M30 and length is 16mm-200mm
Processing customized business: Bolt with reduced stem, tower bolt, lock bolt, anchor bolt, stud bolt, galvanized bolt, DIN933-931 bolt, bolt of American National Standards Institute (ANSI), bolt of British Standards (BS), bolt of Japan Industrial Standards (JIS) ISO and matching products,and a variety of shaped bolts manufactured according to he requirement of customers.
High strength bolts
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.
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.