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Finexpress Precision Manufacturing (dongguan) Co., Ltd

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City:dongguan

Province/State:guangdong

Country/Region:china

Contact Person:MrsIrene chen

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China Steel Washer Style Din 603 Carriage Bolt M4 M5 M6 Carriage Cup Head Square Neck Bolts wholesale

Steel Washer Style Din 603 Carriage Bolt M4 M5 M6 Carriage Cup Head Square Neck Bolts

Name: Steel Washer Style Din 603 Carriage Bolt M4 M5 M6 Carriage Cup Head Square Neck Bolts
Brand: FineExpress
Price: 0.05 USD

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Place of Origin :Guangdong, China

Brand Name :FineExpress

Model Number :FineExpress bolt003

MOQ :50000

Price :$0.05/pieces 1000-9999 pieces

Payment Terms :T/T, L/C, D/A, D/P

Supply Ability :500000000 Piece/Pieces per Week

Delivery Time :7~15 Working Day

Packaging Details :1.1000pcs / plastic bag,20kgs/ carton ,then put on the wood pallet ,
2.Carton size:28cm*18cm*13cm,
3.Wood pallet size:118cm*113cm,Weight:700~800Kg Bulk:0.8 cubic
4.The weight of 20 FT Container:20~25 Tons
5,As your requirements

Finish :Black, ZINC, Plain

Style :steel washer

Material :Brass, Stainless steel, Steel, Aluminium, 18-8 STAINLESS STEEL, Bronze

Application :Heavy Industry, Retail Industry, Automotive Industry, electrical,electronics,cabint

Standard :DIN

Reliability test :mechanical dimentions,salt spray endurance test

Service :Customized OEM

Sample :Availble

Function :Connection,Fastening and Decoration

MOQ :1 piece in stock, 50,000 pcs customized

Delivery time :In stock 5~7 working days, customized 15~25 working days

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Steel Washer Style Din 603 Carriage Bolt M4 M5 M6 Carriage Cup Head Square Neck Bolts

Product Overview

Our DIN 603 Carriage Bolts combine the classic cup head and square neck design with a built-in washer-style flange for enhanced load distribution. Available in M4, M5, and M6 sizes, these bolts are crafted from high-quality steel and ideal for applications requiring anti-rotation security, durability, and a clean finish. Perfect for wood-to-wood or wood-to-metal fastening in furniture, construction, and machinery.

Key Features

✅ DIN 603 Compliance

Cup Head with Integrated Washer: Provides a wide bearing surface to prevent surface damage.
Square Neck: Locks into materials to prevent rotation during tightening.

✅ Material & Finish

Carbon Steel (Grade 4.8/8.8): Standard option for general use.
Zinc-Plated (Optional): Electro-galvanized coating for corrosion resistance.

✅ Sizes & Threads

M4 (4mm): Thread length 10–20mm, total length 20–50mm.
M5 (5mm): Thread length 12–25mm, total length 25–60mm.
M6 (6mm): Thread length 15–30mm, total length 30–100mm.

✅ Applications

Furniture Assembly: Bed frames, cabinets, and tables.
Construction: Wooden decks, fences, and structural joints.
Machinery: Equipment requiring anti-vibration fastening.

Steel Washer Style Din 603 Carriage Bolt M4 M5 M6 Carriage Cup Head Square Neck Bolts

Specification

More Detail Informations
Available Material	1.Stainless Steel: SS303, SS304, SS316, SS410, SS420; 2.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045; 3.Brass: C3602,C3604,Hpb59,Hpb62,Hpb65,Hpb58,Hpb70 ; 4.Aluminum: Al6061, Al6063 etc or as your requirements
Head type	CSK Head,Pan Head,Truss Head,Hexagon Head,Round Head,Oval Head,Button Head,Cap Head,Cheese Head,etc.
Hardness	Carbon Steel:HRC:28~35 ,HV450~700 Alloy Steel:HRC:32~39(grade10.9) HRC:39~44(grade12.9)
Finish	Zinc plated, Nickel plated, Bronze, Copper,Phosphate, Oxidation black, Passivation, Tin, Dacromet, Gold, Chrome, Silver, Phosphorization,Zinc-nickel alloy plated etc.
Sample Available	The sample is free of charge if we have the existing tooling,you only need to pay for the freight cost
Delivery time	Samples time 3-5 working days, Lead time 20-25 working days
Pricing Term	EXW Dongguan(FCA),FOB, CIF, CNF, DDU,etc.
Packing	Bulk in PE bag or Small boxes.then in carton .pallet
Payment term	TT (30% in advance as deposit, balance before delivery) , L/C, Western Union,PayPal etc
Management system	ISO9001:2015
Certificate	ISO,ROHS

Why Choose Us

Why Choose Us?

✅ OEM/ODM Support: Full custom packaging, branding, and documentation.
✅ Quality Assurance: ISO 9001-certified with full material traceability and testing (salt-spray, torque, tensile).
✅ Flexible MOQs: Prototype batches to large-scale production.
✅ Fast Turnaround: 10–15 days for standard orders; expedited options available.

Company Profile

FAQ

Q1: What is your main products and material supply?
A1: Our main products are Electronic screws,Sems screws,Tapping screws,Chicago screws,Shoulder screws etc. Special Non-standard studs,Turning parts and High-end precision complex CNC Machining parts etc.
A2: Carbon Steel, Alloy Steel, Aluminum alloy,Stainless Steel, Brass, Copper ,Titanium alloy or according to your requirement.

Q2: When can I get the price?
A: We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours.Any urgent cases, please contact us directly by phone or send email to us.

Q3: What about the transportation and delivery date?
A: If the weight of goods more than 80kg,Normally we use shipment to transprot the orders. It is about 20-30days . If the weight of goods less than 80kg,or there are urgent, we can send the goods via air express,It is 3~5 days.

Q4: What's your packing?What to do in case of damaged goods during transport?
A1: Our Normal packing is bulking in Cartons, less than 20 kgs/carton, 48 cartons / pallet. We also can pack products according to your requirement.
A2: To avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest.

Q5: Can I get discounts?
A: Yes, for big order, frequent customers, we give reasonable discounts.

Q6: Do you have enough capacity?
A: Our production equipment is a new imported equipment. We have a group of skilled workers who have been working for more than 10 years. Their production experience is very rich and their skills are very skilled. The screws can be 30 million pcs/month. We have sufficient funds to ensure the normal operation of the factory.

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