Fasteners

Standard and Custom Fasteners for Industrial Applications

Product Overview

We offer a comprehensive fastener product line covering four main categories: bolts, nuts, washers, and screws. Our range includes standard parts and custom non-standard solutions, meeting the needs of manufacturing, construction, automotive, and other industries.

Products are manufactured in strict compliance with major international standards including ISO, DIN, ANSI, JIS, and GB. Materials include carbon steel, stainless steel, alloy steel, and copper. Comprehensive surface treatment options are available, such as galvanizing, nickel plating, black oxide, Dacromet, and hot-dip galvanizing.

ISO CertificationDIN standardANSI Standard
Real-world view of fastener factory
RYSCM

Core Advantages

Full Product Line

One-stop sourcing for standard fasteners and custom parts, including bolts, nuts, washers, screws, and more.

Multiple Material Options

Available in carbon steel, stainless steel, alloy steel, copper, and other materials to meet diverse operating conditions.

International Standard Certification

Complies with major international standards including ISO, DIN, ANSI, JIS, and GB.

Product Categories

Bolts
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Bolts

  • Hex Bolt
  • Flange Bolt
  • Hex Socket Head Cap Screw
  • U-bolt
  • anchor bolt
Nuts
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Nuts

  • Hex Nut
  • Flange Nut
  • Locknut
  • cap nut
  • weld nut
Washers
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Washers

  • Flat Washer
  • spring washer
  • Toothed washer
  • flange gasket
  • Rubber Gasket
Screws
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Screws

  • self-tapping screw
  • machine screw
  • wood screw
  • Set Screw
  • Combination Screw

Technical Specifications

Product StandardsISO, DIN, ANSI, JIS, GB, BS
Material Grade4.8/8.8/10.9/12.9 Grade, A2/A4 Stainless Steel
Specification RangeM1-M100, 1/8"-4"
Length range3mm - 3000mm
Tensile Strength400-1200 MPa
Yield Strength320-1080 MPa
Hardness rangeHRC 20-40
Surface TreatmentGalvanizing, Nickel Plating, Black Oxide, Dacromet, Hot-Dip Galvanizing
Coating Thickness5-25μm (galvanized)
Operating Temperature-40°C to +300°C
Salt Spray Test≥72 hours (galvanized)
PackagingLoose, boxed, bagged, or as requested by the customer

Product Details

From standards to delivery services, comprehensively meeting your fastener procurement needs.

Standard System

We can provide a variety of internationally certified products tailored to your requirements:

DINISOASTMJISGB

Custom parts require drawings or 3D models. We support customization of specific parameters including diameter, length, pitch, head type, and thread length.

Material & Strength

Materials can be customized to meet customer requirements:

Carbon SteelAlloy SteelStainless SteelSCM435

Strength grades vary by product: 4.8, 8.8, 10.9, 12.9, and more, to meet diverse operating conditions.

Surface Treatment

Coating thickness can be customized per customer requirements. Salt spray test duration and coating material can be discussed and agreed upon with the customer.

Common treatments include zinc plating, nickel plating, black oxide, Dacromet, and hot-dip galvanizing. Coating thickness options: 5-25 μm.

Certification System

  • ISO 9001 Quality Management System Certification
  • Automotive fasteners are IATF 16949 certified.
  • Provide Mill Test Certificate (MTC) for raw materials
  • Accepts third-party inspections from SGS, BV, etc.

Quality Control

  • Provide FAI First Article Inspection Report (dimensions, material, mechanical properties, salt spray, etc.)
  • Product traceable to raw material heat number and production batch.
  • MES/ERP System Enables End-to-End Traceability
  • Salt spray test: ≥72 hours (zinc-plated); duration can be extended as needed.

Delivery & Quotation

  • Ample capacity to handle peak-season urgent orders.
  • Custom prototyping lead time: 2-4 weeks (depending on drawing complexity)
  • Export packaging is rust-proof and moisture-proof (e.g., using moisture-proof paper or wooden crates) to meet sea freight requirements.
  • Quotation method: FOB or CIF, including packaging, inland freight, and certification.
  • Minimum order quantity (MOQ) starts at 3K units, depending on the product.

Production Facilities

Fastener Packaging Workshop
RYSCM

Product Packaging Area

Finished Goods Storage Area
RYSCM

Finished Goods Warehouse

Raw Material Wire Warehouse
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Raw Materials Warehouse

Industries Served

Machinery Manufacturing

Assembly and Connection of Various Mechanical Equipment

Construction Engineering

Steel structure, curtain wall, and scaffolding connections

Automotive Industry

Automotive Fastening Systems

Power Equipment

Power transmission and transformation equipment, electrical cabinet connections

Rail Transit

High-speed rail, metro vehicles, and track fastening

Shipbuilding

Ship Structure and Equipment Connections

Custom Solutions

In addition to standard products, we offer professional custom fabrication services based on customer drawings or samples.

15+

{0} years of customization experience

500+

Serve Customers

2-4 weeks

Non-standard prototype lead time

Get a Product Quote

Contact us for the latest product pricing and lead times. Bulk order discounts available.

Get a Quote