
Suppliers of High strength bolting assemblies for preloading- part 4 - system HV hexagon bolt and nut assemblies
This product is regulated by the following standards:
DIN EN 14399 4 (Equivalent standards: BS EN 14399 4, NF EN 14399 4, UNI EN 14399 4)
Full list of Suppliers of High strength bolting assemblies for preloading- part 4 - system HV hexagon bolt and nut assemblies

VIPA is a leading wholesaler of screws, nuts and bolts. The extensive stock of high-quality screws and bolts and the highly automated warehouse make VIPA the ideal supplier of screws, nuts and bolts with metric threads, drawing parts, special screws, washers, nuts and various fastening systems.







We are manufacturer of bolts and nuts since 1980, with over 50 years of experience in the fastener industry. Thanks to our experience, quality and service offered, we have made a mark on the field.

Distributor of fasteners and tools. 9 warehouses (for a total capacity of 60000 pallet places) are located in northern Italy, working with the industry and retail.
Kanban, consignment stock, vending machines are the services we provide.

Polish products acc. norm DIN / ISO and drawings
Diameter: M6 to M100 (especially bigger diameter)
Materials: 5.6 / 8.8 / 10.9 / 12.9 / 25CrMo4 / 42CrMo4
Treatment: ZN / HDG (tZn) / flZnnc
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EN 15048 SB sets 'CE' Made in Poland
EN 14399 HV sets 'CE' Made in Poland

Manufacturing company from Turkey.
Hot Forging & Cold Forging
Bolts: M 12 – M 48          Â
EN 14399-1 & En 15048 CE CERTIFICATE
Nuts: M 12-M 72
Threaded Rods: M 20 – M 220
Heat Treatment  IN -HOUSE
Hot Dip Galvanize IN-HOUSE

Kraft Bulgaria EOOD is a leading BG company specialized in the trade of fasteners, industrial supplies, industrial armature for water, industrial, fire-frightening systems and irrigation sectors.
Our success is due to the high quality of the offered products, the professionalism and qualification of our team, as well as our flexible distribution network.

Specialists in hot dip galvanized fasteners
Stafa is a leading European importer of fasteners and fixings with a huge range of more than 75,000 products.
Private label packaging, assembled sets and kits, direct manufacturer to customer for large volumes, retail store concepts, special parts and complete project deliveries.
Manufacturer of high strenght fasteners and stud bolts for oil and gas industry
Manufacturer of hexagon head screws, high strength fasteners and flanged screws
Distributor of high tensile screws and nuts in stainless steel and alloy steel
Importer/producer of high strength bolting assemblies BS EN 14399 and BS EN 15048
Manufacturer and distributor of standard fasteners and HV fastener sets.
Manufacturer of cold and hot forged high-quality fastening systems for wind power industry, automotive industry, building and steel construction, tunnel and bridge construction
Manufacturer of high tensile fasteners, sizes from M16 to M64 for oil and gas industry, heavy engineering industries, railways, construction industries, etc..
Manufacturer of high-strength structural bolting assemblies
Manufacturer of hot forged fasteners in stainless steel, carbon steel and duplex. Hish strength bolting with sizes up to M80. Nuts to M100.
Manufacturer of hot forged special fasteners and high strenght fasteners EN 14399 and EN 15048.
Manufacturer of hot forged fasteners, bolt joints EN 14399 and EN 15048.
Distributor of standard fasteners
Manufacturer of standard (EN-14399-4, DIN 931, DIN 7990, EN 15048, ASTM A193, ASTM A320, ASTM A325, ATM A490, ASTM A453) and special bolts, stud bolts, and anchors in any kind of quality, diameter, length and coating.
Thanks to our engineers, all our products are designed and manufactured in house.
Manufacturer of fasteners for railway, automotive and construction industry.
Cold forged fasteners up to M30, hot forged up to M72
Manufacturer of bolts for steel structures, guard rails and for the construction sector
Manufacturer of screws for the automotive industry and structural boltings EN 14399
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Manufacturer of Hex. head and socket fasteners, wood screws, high tensile fasteners, nuts. Copper and Aluminium fasteners.
Distributor of complete range of fasteners
Producer of hot forging fasteners, sizes fom M14 to M64. Fasteners following EN 14399 norm
Fasteners Engineering is a global organization, leader in the sale of mechanical fasteners, intended for industrial applications with a high engineering content.
Design advice, help in choosing the right technology and assistance in reviewing an existing design for cost efficiency and quality, we are the solution for you.
Supplier of standard fasteners and manufacturer of special fasteners, structural bolting and oil&gas fasteners
Manufacturer of hot pip galvanized and high tensile fasteners for the steel industry
Distributor of fastener, fixing and tools, high strenght fasteners
Manufacturer of standard and special cold and hot forged fasteners for structural steelwork, bridges, wind turbines. High Strength fasteners din 14399 din 6914
Manufacturer of nib bolts, cup square bolts and high strength friction grip bolts from M6 to M75
Producer of stainless steel fasteners and high-tensile structural bolting
Manufacturer of cold forged automotive fasteners. Diameters from 12 to 30 mm and lengths from 20 to 180mm.
Manufacturer of standard and special fasteners, from M4 to M30, from 1/4' to 1-1/4'. Lengths from 10 to 300mm and from 1/2' to 12'.
Leading manufacturer & exporter of low tensile 4.6 / 5.6 / 6.8 &Â Hi-tensile (8.8, 10.9 & 12.9) fasteners since 1964. Hexagon bolts, hexagon nuts, spring washers, crash barrier bolts.
Manufacturer of HV and SB sets, plastic and steel plugs, special fasteners. Distributor of standard fasteners and fixings for construction and industry
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Manufacturer, distributor and supplier of automotive fasteners, industrial fasteners, structural bolting, fasteners for agricultural and road crash barriers
Fastener distribution: Total completeness with large stock of standard products, medium/high strength items, stainless steel, brass, hot forged and turned parts. More than 50.000 items are supplied with several surface treatments.
Manufacturer of fasteners specialized in high tensile and hot dip galvanized fasteners
Manufacturer of high strength fasteners and foundation bolts
Manufacturer of high tensile fasteners and fasteners for the automotive industry
Manufacturer of standard and special fasteners, crash barrier bolts & cup head coach bolts from M4 to M80 dia, length M10 to M1000. Structures for transmission and telecommunication towers and substation.
Manufacturer of stud bolts, threaded rods, bolts and nuts.
DIN931/DIN933/DIN558 and ASTM A325 hexagon head bolts, DIN934, DIN6923, DIN985 and ASTM A 194 2H nut, DIN960, DIN961, DIN6914, DIN7990, DIN7991, DIN912, DIN7985 screws and DIN975, DIN976, ASTM A 193 B7 threaded rods, as well as other AS, GB, ISO, BS, JIS standard
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Manufacturer of high-strenght bolts, nuts, threaded rods and washers for the oil and gas industry
Distributor of standard and special fasteners, structural bolting (EN 14399-4/6 and EN15048) in steel, stainless steel and superalloys.
Manufacturer of automotive fasteners, fasteners for the wind energy industry and high strenght structural fasteners
Manufacturer and distributor of fasteners for oil sector, threaded rods, stud bolts, foundation bolts, road crash barrier fasteners, high strength fasteners.
Manufacturer and distributor of fasteners and stud bolts B7, L7, B16, B8, structural bolting.
Manufacturer of high tensile, oil and gas and special alloy fasteners
Distributor high-tensile fasteners for constructions and guard rail fasteners
Proton Fasteners S.L. is a company dedicated to the supply of high-resistance screws, we offer a comprehensive service to companies and professionals in any sector. We guarantee a quality product, which allows us to assure our customers an improvement in their projects, products and competitive position in the market.
Manufacturer of fasteners for transmission lines, railway, electricals, road crash barriers and special fasteners
Manufacturer of high tensile bolts and nuts from M20 to M72. Materials: 8.8, 10.9, 12.9, stainless steel 304, 316, 316L, 904L and superallys. Specialist of HV bolting EN 14399-4 10.9
Distributor of high tensile fasteners and self locking nuts with nylon insert.
Manufacturer of high tensile fasteners, fasteners for constructions and automotive fasteners.
Sizes from M5 to M52 and lengths up to 500mm
Manufacturer and exporter of fasteners for the oil and gas field, the solar sector, construction fasteners and superalloy fasteners
Manufacturer of high stength fasteners and fasteners for petrochemical sector (ASTM A193/A320/A325)
ASTM A193 Grade B7, B7M, B8 (304 SS), B8M (316 SS). B8T, B8MX, B8TX, B16 stud bolt. A320 L7, L7M, A453 660A, 660B, 660C, 660D, A325 & A490 steel structure bolt set and assembling A194 and A563 series heavy hex nut
Manufacturer of power transmission fasteners and high strength fasteners
Distributor of fasteners for constructions: stud bolts, threaded rods, self drilling screws, decking screws, self tapping screws, concrete screws, high strenght structural bolts, chemical fixings, plates
Manufacturer of high strength fasteners, structural boltings,fasteners for road crash barriers and fori oil and gas sector.
Manufacturer of hot formed fasteners (bolts, screws, nuts, rivets) and railway fasteners
Manufacturer of high strength fasteners, hot forged fasteners and superalloys fasteners
Manufacturer of hot forged fasteners and studs. Supplier of the oil and gas sector.
Diameters from M16 to M72
Manufacturers of special auto parts, cold and hot forged fasteners from M2 to M150, structural bolting assemblies for preloading (EN 14399) and foundation anchor bolts.
Manufacturer of socket cap screws, shoulder screws, dowel pins, set screws, pression plugs, wrench keys
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Manufacturer of high strength structural bolts EN ISO 14399 and EN 15048 norm
Manufacturer specialized in high strength fasteners for construction DIN / EN / UNI 14399
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Medium-sized supplier of fasteners and fixing elements. We are a family-owned wholesaler, on the market for almost 80 years and our aim has always been to improve in order to satisfy our customers. Our main business areas are steel and mechanical engineering.
Manufacturer of hexagon head fasteners, socket cap fasteners, steel structural assemblies. Sizes from M6 to M64
Manufacturer of high strenght fasteners and fasteners for the wind power and petrochemical industry