Industrial fastener export & supply from Yongnian, Handan, China sales@fasnafasteners.com · WhatsApp +86 188 3303 0376

Matched components

Nuts and Washers for Heavy-Duty Bolt Assemblies

Nuts and washers can be supplied as separate items or packed together with matched bolt and stud assemblies.

Nut range

Heavy, standard and special nuts for industrial assemblies

Heavy Hex Nuts

Heavy Hex Nuts

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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Hex Nuts

Hex Nuts

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

Flange Nuts

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

Lock Nuts

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

Slotted Nuts

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

Cap Nuts

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

Thin Nuts

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

Wing Nuts

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

T-Slot Nuts

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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Washer range

Flat, square and spring washers for matched supply

Flat Washers

Flat Washers

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

Square Washers

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

Zinc-Plated Spring Washers

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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Need matched nuts and washers with your bolt order?

Include product type, standard or drawing, diameter, length, thread details, grade, surface treatment, quantity, packing requirements and destination port.