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.
1. variety of screws with diameter from 0.80mm to 8.00mm, e.g. standard screws which are in accordance with any one of GB DIN ANSI BS JIS standards, non-standard screws and customized or tailored screws
2. variety of stamping hardware
3. automatic lathe parts and CNC lathe parts.
Among them, please, especially pay attention to the perforated seal screw series，which is used for lead-sealed wire , and for which the company has created its unique technology and manufacturing process.
We can produce kinds of bolts, screws, nuts, washers.
Bolts: Hexagon Bolt, Hex Socket Bolt, Steel Structure Bolt, Torshear Bolt etc.
Screw: Screw in ASME, Europe Standard, BS, Self-Drilling Screw, Hex Wood Screw, Self-Tapping Screw, Drywall Screw, and Chipboard Screw etc.
Nut: Nut in ASME, DIN, Hex Nut, Hex Flange Nut, Acorn Nut and Round Nut etc.
Our fasteners can be widely used in automobile, household appliances, machinery and construction industries etc.
Double end screws, trox wrench, Allen wrench, NC tool accessories, high frequency head screws, PEM standard parts, LED light fittings, high power cooling brass pillars, screws used in environmental protecting lights
Main car and motorcycle bolt, nut and stamping parts, non standard tensile nuts, stainless steel pipe valve and all kinds of stainless steel flange. Lock nut, welding nut Quartet, six horns, six angle, flange bolt, six corner slotted nuts, wheel nut, welding of high strength nut, welding nut seat belt, nylon locking nut, metal lock nut, projection welding bolts
Wenzhou San Bao Fastener Co., Ltd. specializes in all kinds of iron wholesale. Hexagon Hexagon outside the stainless steel bolt. all kinds of nuts. machine screws. Since the screw attack. pad level. pad shells. such as the national standard
Professional in producing stainless steel DIN, ANSI, ISO, JIS, GB and non-standard hollow screws, nylon screws, security screws, rivet bolt, set screws, self tapping screws, high precision turning, hardware stampings, etc.
The main materials of the mentioned products are stainless steel, carbon steel, and copper. We can also supply the overseas brand plastic screws, nuts, washers in complete specifications. According to the domestic demands, we always have certain stocks.
TAICANG ZHONGBO RAILWAY FASTENING is a leading manufacturer and supplier of rail fastening in China. We are dedicated on supplying more better quality rail fastenings to the world railroad, and contributing to availability of more safety and convenient transit.
ZHONGBO initially started from 2004, to 2011, it moved to current place, Shaxi Industry Park, Taicang, Jiangsu Province, east of China. The site is about 23000 square meters. There are 320 staff in the site, of which, there are about 16 technical staff, and 112 junior and senior skilled workers; for testing and production facilities, there are more than 260 sets. Total assets is about 120 millions RMB, annual turnover about 180 millions RMB. The annual production capability is 36000 tons including rail fastenings, kinds of railway bolts, screw spikes.
ZHONGBO is certificated with ISO 9001:2008 through SGS audit, and also certificated by China Railway Product Testing and Certification Center-CRCC. As well, our products are also approved by world class railroad company, such as UPRR, BNSF, SBB, SRT, PNR, MTR etc.
There is also a professional R&D team in ZHONGBO. There are 3 senior national class engineers, 5 engineers and 8 assist engineers, they are working hard on R&D and improvement of rail fastenings for each field. We already awarded 18 patents on metro railway fastening system, tramway fastening systems, and performed widely. We are also the testing base of Southwest Transportation University regarding to rail fastening systems; we also cooperated with Shanghai Tongji University regarding the research and developing about vibrating reduction, wave friction reduction to rail tracks fields and award several leading results.