Product Categories

Expansion Bolt

[3]

Contact Now

Finexpress Precision Manufacturing (dongguan) Co., Ltd

Visit Website

City:dongguan

Province/State:guangdong

Country/Region:china

Contact Person:MrsIrene chen

View Contact Details

Contact Now

China DIN Standard Square Head Bolt 8.8 Grade Carbon Steel for Rail Fastening and Reliability Test wholesale

DIN Standard Square Head Bolt 8.8 Grade Carbon Steel for Rail Fastening and Reliability Test

Name: DIN Standard Square Head Bolt 88 Grade Carbon Steel for Rail Fastening and Reliability Test
Brand: FINEX
Price: 0.05 USD

Ask Latest Price

Video Channel

Brand Name :FINEX

Model Number :FINEX Custom bolts and nuts

Place of Origin :Guangdong, China

MOQ :30000

Price :$0.05/pieces 30000-49999 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 :ZINC, Plain

Material :Stainless steel, Steel

Standard :DIN

Head type :custom special head

Service :OEM Customized Design

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

Package :Small Packing+Carton Packing+Pallet

Reliability test :Mechanical dimentions, hardness test.Salt spray endurance test

MOQ :1 piece in stock, 30,000 pieces customized

Contact Now

Add to Cart

View Product Description

Square Head Bolt –Rail Fastening & 8.8 Grade Carbon Steel

Product Overview

Our Square Head Bolt is engineered for rail fastening systems and structural assemblies requiring high-strength, vibration-resistant fastening. Crafted from Grade 8.8 carbon steel, this bolt combines a square head design for secure wrench engagement with exceptional tensile strength and durability. Ideal for railways, construction, and industrial projects, it meets rigorous demands for load-bearing and environmental resistance.

Key Features

✅ Grade 8.8 Carbon Steel

High Tensile Strength: 800 MPa tensile strength and 640 MPa yield strength for heavy loads.
Durability: Resists shear stress, fatigue, and deformation under dynamic forces.

✅ Square Head Design

Wrench-Friendly: Compatible with standard square wrenches for easy installation and torque control.
Vibration Resistance: Prevents loosening in high-shock environments like railway tracks.

✅ Rail Fastening Optimized

Compliant with Rail Standards: Designed for use in fishplates, tie plates, and track joints.
Corrosion Protection: Optional hot-dip galvanized or black oxide coating for outdoor/railway use.

✅ Versatile Applications

Compatible with nuts, washers, or pre-tapped holes in metal, wood, and composite materials.

DIN Standard Square Head Bolt 8.8 Grade Carbon Steel for Rail Fastening and Reliability Test

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

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.

Inquiry Cart 0