Bolt Series / Factory Direct
Bolts Manufacturer
Hex bolts, flange bolts, carriage bolts and OEM bolts for industrial assembly. Cuiyi supplies standard and OEM fasteners with controlled production, export packaging and pre-shipment inspection.
Product Introduction
Bolts for B2B Fastener Buyers
Hex bolts, flange bolts, carriage bolts and OEM bolts for industrial assembly. We manufacture for importers, wholesalers, distributors, contractors and industrial buyers who need repeatable quality, stable packing and responsive export communication.
Factory Direct Supply
Production communication, specification confirmation and quotation from the manufacturer.
OEM / ODM Options
Custom dimensions, materials, coatings, labels and carton design can be arranged.
Export Packing
Bulk carton, small box, pallet, barcode and shipping mark options are available.
Applications
Steel structure
Machinery
Construction
Automotive and industrial assembly
Reviewed Product Photos
Bolts Product Gallery
A selection of bolts in common sizes, grades and finishes.
High Strength Grade 8.8 10.9 12.9 Steel DIN931 DIN933 Black Oxide Hex Bolts
UNC/UNF Gr 2/5/8 Hex Bolts
ASTM A325 Heavy Hex Structural Bolt
Grade 4.8 Carbon Steel DIN931 DIN933 Color Yellow Zinc Plated Hex Bolts
High Strength Grade 8.8 10.9 12.9 Steel DIN931 DIN933 Zinc Plated Hex Bolts
High Strength Grade 4.8 8.8 10.9 12.9 Zinc Plated DIN6921 Flange Bolts
Technical Parameters
Specification Range
Diameter
M5-M30 / 1/4-1 inch
Length
10-300 mm
Standards
DIN, ANSI, ISO, JIS, GB
Grade
4.8, 5.8, 8.8, 10.9, 12.9
Material
Carbon steel, alloy steel, stainless steel
Finish
Plain, zinc, black oxide, HDG, Dacromet
Production
Production planning, cold heading, forming and thread rolling are arranged according to order specification.
Quality Control
Size, thread, head, drilling point, surface finish, hardness and packing are checked before shipment.
Packaging
Small box, bulk carton, bag, bucket, pallet and private label packaging can be customized.
FAQ
Common Buyer Questions
Can you produce according to drawings?
Yes. Send drawings, samples or standards and we will confirm feasibility, material, finish and packing.
Can you provide custom packaging?
Yes. Private label, barcode, color box, carton mark and pallet packing can be arranged.
What should I send for quotation?
Please send size, material, surface treatment, quantity, packing requirement and destination port.
Related Products
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Factory Inquiry
Request Bolts pricing and production advice.
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