Complete fastener range
The list below is organized for practical product review. FASNA focuses on heavy-duty bolts and long-length fasteners while also supplying nuts, washers, threaded products, screws and custom parts for combined orders.
Product range
Core product group for project procurement, structural connections, equipment anchoring and heavy industrial maintenance. Quotations are reviewed by standard, diameter, length, grade, finish, mating parts and packing method.
Large-diameter and high-load bolts for steel structures, machinery bases, industrial equipment and project installations. Specifications are reviewed by diameter, length, thread type, mechanical grade, coating requirement and matched nuts and washers before production.
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Extra-long bolts manufactured for foundation work, equipment anchoring, thick-section connections and special installation requirements. Full thread, partial thread and specified thread-length configurations can be produced according to drawings or application needs.
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Standard and heavy-duty hex head bolts supplied in multiple grades, materials and surface finishes for industrial fastening, maintenance stock, distributor supply and project orders. Available according to DIN, ISO, GB, ASTM or drawing-based requirements.
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Structural bolt assemblies designed for steel buildings, workshops, bridges and other high-load structural connections. Supply can include matched nuts and washers, with production reviewed according to project standard, installation condition and corrosion requirement.
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Hot-dip galvanized bolt assemblies supplied with matched nuts and washers for outdoor steelwork, substations, utility structures and corrosion-exposed environments. Coating thickness, thread allowance and assembly matching are checked before shipment.
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Stainless steel bolts for corrosion-resistant applications involving moisture, chemical exposure, marine conditions or hygienic service environments. Available in common stainless grades and specified dimensions for project, maintenance and OEM use.
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Socket head bolts for machinery, tooling, molds and compact assemblies where internal hex drive and higher clamping efficiency are required. Dimensions, grade and finish can be matched to mechanical or equipment specifications.
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Hex flange bolts with an integrated bearing surface for equipment frames, automotive-style assemblies and industrial connections. The flange design helps improve load distribution and reduce the need for separate washers in selected applications.
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Square head bolts for machinery, maintenance, clamping systems and traditional industrial applications where square-head installation is specified. Production can be arranged according to standard dimensions or drawing-based requirements.
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T-head bolts used for slots, channels, rails and special clamping systems in equipment, structural supports and industrial fixtures. Dimensions and head configurations can be adjusted according to the mating slot or application requirement.
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U-bolts for pipe support, framework fixing, equipment mounting and structural support applications. Diameter, leg length, thread length, bending radius and coating can be produced according to installation needs.
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Anchor bolts for concrete foundations, embedded installations, steel columns and equipment bases. Straight, L-type, J-type, hook-type and drawing-based anchor configurations can be produced with matched nuts, washers and template requirements when needed.
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Mechanical expansion bolts for concrete fixing, installation work and general anchoring applications. Selection should be confirmed according to substrate condition, load requirement, embedment depth and installation environment.
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Custom fasteners including non-standard bolts, special heads, bent parts, threaded components and matched assemblies manufactured according to drawings, samples or project specifications. Production review covers dimensions, material, process route, mechanical properties, finish and packing method.
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Stud and threaded products for flanges, pressure equipment, anchoring, clamping and custom fabrication.
Double-ended stud bolts for flanges, valves, pressure equipment and industrial assemblies where controlled engagement length and matched nut installation are required. Supplied according to material, thread specification, finish and service condition.
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Hot-dip galvanized stud bolts for outdoor structures, power installations and corrosion-exposed service conditions. Thread tolerance, coating thickness and assembly fit are reviewed to ensure practical installation after galvanizing.
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PTFE-coated fully threaded studs for petrochemical, plant and flange applications where additional corrosion resistance, anti-seizing performance or color identification is specified. Coating system and thread allowance are confirmed according to service requirements.
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Threaded rods supplied in specified diameters, lengths, grades and finishes for anchoring, suspension, fabrication and adjustable assembly work. Full-thread configurations can be produced for construction, equipment support and general industrial use.
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Matched nut supply for bolt assemblies, industrial maintenance, structural use and custom packing requirements.
Heavy hex nuts for large-diameter bolts and high-load assemblies, supplied according to thread standard, mechanical grade, finish and matched-bolt requirements. Commonly used in structural, machinery and project fastening systems.
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Standard hex nuts available in multiple materials, grades and surface finishes for general bolt assemblies, maintenance stock and mixed fastener supply. Production can follow DIN, ISO, GB, ASTM or customer-specified standards.
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Flange nuts with an integrated bearing surface for improved load distribution and convenient assembly in equipment, automotive-style and industrial fastening applications. Serrated or non-serrated styles may be supplied according to requirement.
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Lock nuts for vibration-resistant assemblies where improved anti-loosening performance is required. Suitable for machinery, equipment frames and applications subject to movement or repeated service loads.
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Slotted nuts designed for cotter-pin locking systems in mechanical and structural assemblies that require secure positioning after tightening. Produced according to thread size, slot form and matching pin arrangement.
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Cap nuts with a dome-style closed end for covering exposed threads, improving appearance and helping protect against damage or contamination. Suitable for equipment, decorative and safety-related fastening applications.
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Thin nuts for limited installation space, locking arrangements or secondary tightening applications where a reduced nut height is required. Can be supplied in common thread sizes and specified finishes.
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Wing nuts for hand-tightened assembly, quick adjustment and repeated installation without special tools. Commonly used in temporary fixing, maintenance and light-duty equipment applications.
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T-slot nuts for machine tables, aluminum profile systems, fixtures and clamping assemblies where secure positioning inside a slot is required. Dimensions and slot compatibility should be matched to the supporting system.
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Common supporting washers supplied together with bolts and nuts or as separate order items.
Flat washers for load distribution, surface protection and matched bolt-and-nut assemblies. Available in various outer diameters, thicknesses, materials and finishes for structural, mechanical and general fastening use.
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Square washers for structural, timber, anchor and heavy-duty connections where a larger bearing surface is required. Often used to improve load distribution on softer or uneven contact surfaces.
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Zinc-plated spring washers for locking support and preload retention in general mechanical assemblies. Suitable for applications where basic anti-loosening assistance and surface corrosion protection are required.
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Supplementary screw products for distributors and mixed fastener procurement.
Drywall screws for gypsum board installation, light steel framing and general interior construction work. Supplied in common thread types, head styles and finishes for distributor stock and mixed screw orders.
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Wood screws for timber fixing, furniture assembly and general construction fastening applications. Selection may vary by head style, thread form, length, coating and installation material.
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Self-drilling screws with drill-point design for metal sheet, roofing, cladding and light-gauge steel installation where pre-drilling should be reduced. Head type, drilling capacity, coating and washer configuration can be selected according to application.
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